Ultimate Setup Guide for Cryptocurrency Mining with Linux ...
Ultimate Setup Guide for Cryptocurrency Mining with Linux ...
HOW TO INSTALL BITCOIN WALLET ON LINUX – Fragabergnos
How to Store Bitcoin on USB Stick or Wallet? - Cryptalker
LinuxLive USB Creator
Change Bitcoin Core Data Directory - BitcoinWiki
Why don't more people use/discuss Linux Live USB drives with bitcoin wallet installed?
I'm new to bitcoin and I have been looking into safe options for wallets. My first solution was the just use a spare phone I had, which didn't seem safe enough. My second solution was to install the bitcoin software on a usb drive and plug it in/run it directly from the drive when I needed to. This also didn't seem safe since you're plugging it into a running machine. The final solution aside from buying something like the ledger nano s was to just install a Live Linux distro with persistence and install the wallet onto there so at least I could boot from it directly and run the wallet on a fresh OS all the time. I guess my question is, why isn't this option discussed more as of late? It seems that most of the posts I'm pulling up are 2-3 years old. Is there something I am missing as a newbie to crypto currencies?
What I currently use for privacy (after almost 2 years of long investing into it)
So this is what software I currently use for privacy, would like some opinions if possible: Starting with my cellphone, my device is a Google Pixel 3A XL with GrapheneOS flashed, I have the following apps installed: F-Droid and AuroraOSS (as my app stores), NewPipe (youtube client), Vanadium (web browser), Tutanota and K-9 Mail (for e-mails), OsmAnd+ (for maps), Joplin (notes), Open Camera (camera), OpenBoard and Mozc for Android (Keyboard and Japanese Keyboard), Aegis Authenticator, KeePassDX (password manager), LibreTorrent (torrent client), Librera PRO (pdf/epub/mobi reader, I don't own a Kindle nor want to own one so I use my cellphone to read), Tachiyomi (manga reader), Signal (for messaging), Vinyl Music Player, VLC, Simple Gallery Pro and Simple Calendar Pro (I prefer them over stock Graphene options) and I also use Electrum and Samourai (Bitcoin Wallet) and Monerujo (Monero Wallet) I also have OpenVPN (for VPN) and use a private DNS for ad and tracking blocking (provided by my VPN provider) I have 3-4 PCs, will go over every single one of them: my main PC is a desktop PC (that I built myself) that I mainly use for working and other tasks. It runs Artix Linux (basically Arch Linux without systemd), I use UFW as my firewall (denying all incoming and also denying all outgoing only allowing what is useful) and I also use AppArmor Profiles, I disabled IPV6 and SWAP, configured my VPN connection as well on network settings and I currently run OpenVPN on my computer (my VPN provider allows for multi-hop cascade through OpenVPN in which I can create a custom VPN cascade up to four servers, each consecutive hop re-encrypts my traffic and assigns me a new IP address) and I've also set disk encryption on installation (have set in all of my computers) As for software: I use Mozilla Firefox as my web browser (I set it to always be in private mode, unchecked suggestions for browsing history, bookmarks, and open tabs, I've also disabled the Firefox data collection in settings and block dangerous and deceptive content, I use DuckDuckGo as my search engine, I use Firefox Home as my default as my homepage. The rest of my tweaks were done in about:config (using privacytools.io site tweaks + geo.enabled = false, network.cookie.lifetimePolicy = 2 and dom.security.https_only_mode as true which are not listed on the site) and the only addons I use are uBlock Origin on Hard Mode and Decentraleyes), KeePassXC (password manager), VIM (use it as a Text Editor and as an IDE for coding), LibreOffice (for working stuff), GIMP (image editor), VLC, qBitTorrent and Tutanota's Desktop Client and Thunderbird (for e-mails) I also use KVM/QEMU for virtual machines (usually in case I wanna test some distro or use Tails/Whonix) For my gaming PC (also a desktop I've built myself) I run Manjaro KDE on it, the only apps I have in the system are Firefox (same settings as above), OBS and KVM/QEMU (which I use a Win10 virtual machine for games, there are tutorials on YouTube on how to do so if you're interested). I have the same firewall settings as above, using AppArmor as well and I've also disabled IPV6 and SWAP, I run OpenVPN on it as well as my VPN DNS settings on network settings. I also use different mouse and keyboard on both my PCs and never mix them together. My other 2 PCs are both laptops, one is a Acer Aspire Nitro I've bought for work (in case I need to work while in a trip or if I wanna work outside etc), it has the same settings and programs as my main PC but I run Gentoo on it. The other laptop is an old ThinkPad that runs Slackware on it, but I rarely use it and this laptop is most of the times not with me for safety reasons. For some other devices and stuff: I have an Asus RT-AC86U router with OpenWRT flashed on it that I also run OpenVPN config files (this one coming from another provider, I use two VPN providers, on in my PCs and the other in my router), I have a Ledger Nano S as a hardware wallet for both Bitcoin and Monero (most of my cryptocurrency is there, I use hardware wallet for hodling purposes and as my emergency funding) and I have LOTS of USB flash drivers (all of them for Linux Live ISOs purposes), I also have a Nintendo Switch Lite (only gaming console I have, although have not been playing that much on it recently) that I only connect to the internet in case I need to download some updates or play online and after I'm done I immediately disconnect it from the internet. Some other privacy habits I have are: I don't own any smart device like Smart TVs (I've been more than 10 years now without watching TV, doesn't even bother me), Smart Fridges or Dishwashers that connect to your internet, ROOMBAS, Smart Home etc, I keep all my money on crypto (and I have a small amount in gold as well, but I rarely invest on it, all my gold is stored in a manual safe here in my apartment) and I only have like, 10 bucks or so in my back account (as soon as I receive any money I just left the necessary in my account to pay bills and put all the rest on crypto, I try to pay everything on crypto or cash), I RARELY use cloud storage, but if I need to, I go with NextCloud and encrypt all my files with VeraCrypt before uploading it, all my VPN services were paid with Bitcoin (I try to pay everything with crypto as previously said) and I never write directly into any website, I usually write my text on a text editor, copy it and paste it on the website (needless to say that I don't use mainstream social media as well) So, what do you guys think? anything that you would add your recommend me? (before anyone mentions about self-hosting a DNS server using Pi-hole on a Raspberry Pi, I'm actually thinking on doing it in a near future) EDIT: forgot to mention that I don't watch YouTube on PC on youtube site, I mostly watch youtube's videos on invidio.us and only use the youtube site for watching live streams honestly. And I also barely go outside with my smartphone (only if I really need to) and I usually keep it away from my computers etc. EDIT 2: also another thing: I covered all my laptop's webcams with black electrical tape, I have a Logitech C922 Pro webcam for my desktop PCs but rarely use it, and when I need to use it, I unplug it as soon as I'm done with it.
Alright, i am paranoid now. -I use Ubuntu 18.04, i rarely install software on it, i don't have pirated software either. -I try to stick with trusted sources for package distribution (Don't think i even added an untrusted one) -I do not download attachments from sketchy emails, and almost none in general -I don't remember seeing porn on the PC, very rarely ever did it; - I am the sole user of this desktop; I am running clam AV through the whole system rn. Will update if something comes up. Now, this appeared out of nowhere (gift icon appeared on desktop [for google]), i use chrome browser exclusively and if it was the case of me downloading it, it would appear on "downloads", i think.I don't use any other browser.And i didn't download it... but i would admit the possibility of having it downloaded unwillingly, but again, no record of downloading anything on chrome. This seemed like a visitation card, or a joke - [After some introspection might be something more serious].My sensitive information is all relative to bank accounts, i have 2 factor authentication on almost everything, but if this a real threat should i have to go through the labor of changing every password? What should i do?Thanks guys
A suspicious file appeared on my desktop, i didn't put there, only i use the computer;
There is one major detail that i forgot to add as i didn't pay much importance to it. I was given an external HDD to look at , out of curiosity, that came from a friend. His entire company network was affected by a ransomware. As it seems, his backup disks were too. And he handed me one just to look at. I never intended to connect this HDD to my computer with my main OS running I've tried to peek into it by launching a live Kali session , thought it safer than a VM session.The disk wasn't mounting so i gave up pretty quickly. Now, i did end up restarting the computer, the HDD stayed connected almost until the Ubuntu login prompt appeared, i removed it immediately and didn't think much of it (As i thought this was probably a malware targeting Windows machines). I might have a time bomb at hands, as i don't know if this Ransomware could be triggered remotely or if it really infected the machine, would it take immediate effect. I am taking no chances, luckily i keep backups offline every week of important files, so i'll wipe the machine and be more careful next time. You got to know how to play stupid games, to win stupid prizes . Thanks guys.
User u/Frankstwo recommended to run last and coincidentally the last reboot date is consistent with the date of the file creation:
$ lastsousa :0 :0 Sun May 3 16:07 still logged inreboot system boot 5.3.0-51-generic Sun May 3 16:07 still running
The file creation appears as Sun May 3 16:08. I haven't rebooted the computer ever since. I am curious if some kind of DMA Attack was performed, because i haven't logged in BEFORE i removed the device from USB port. or could it be any other attack vector....
Update 3: i got hacked!
Holy crap! I rebooted the machine and I got a ransomware! In 15 years of using computers and internet this is the first time i got really hacked (that i know of...) I keep minimal information on site luckily, i'm very intriged by what's in that HDD but i will toss it out... i'm kind of flabbergasted and dumbstruck . What a dumbass i was... Never thought it possible on a linux environment though... To finalize, why these guys always go with Bitcoins? I wonder if monero or ZCash isn't more suited for the purpose...
Description of Problem:I transferred bitcoin to my wallet about 2 weeks ago and confirmed that the amounts did arrive into the account. A few days later, I signed into my account and realized that my balance was showing 0 BTC. I have no idea where the BTC went. I checked the history and it seems to show that the amount was transferred out but I definitely don't remember doing that. How do I get my BTC back?! Any help is sincerely appreciated! PS: I did verify my download. Bitcoin Client Software and Version Number: Electrum 3.3.4Operating System: Windows 10 Enterprise (Version 1903)System Hardware Specs: Intel Core i7-7700K CPU 4.20 Ghz, 16 GB DRAM4, 64 bitAny Related Addresses:Any Related Transaction IDs:Screenshot of the problem:https://ibb.co/dQrqpK1
https://preview.redd.it/1w0e6fmjil751.png?width=379&format=png&auto=webp&s=08bf18acc2832c08e610dc74005f57d602f63b75 Best Security When you own crypto, what you really own is a private key. You need to secure it to secure your funds. Ledger offers the best level of protection: your key remains protected in a certified secure chip. Easy to manage One app to secure, own, buy and manage 26 coins & more than 1500 tokens from your smartphone or computer. Install between 3 to 6 applications, depending on app size, on your device. It supports Bitcoin, Ethereum, XRP, Bitcoin Cash, EOS, Stellar and many more. You can safely install & uninstall applications on your device to optimize your capacity needs. Condition: Brand New And Sealed Dimensions & weight Size 56.95mm x 17.4mm x 9.1mm Weight 16.2g Box Content 1 hardware wallet, 1 USB cable Compatibility 64-bits desktop computer (Windows 8+, macOS 10.10+, Linux) excluding ARM Processors. Price: ₱3900
I have been getting this "invalid channel" error when trying to add the bitcoin app in. I can add bitcoin to the ledger Nano s from the manager and I only have Ethereum on it, so there is space. every aspect is up to date, firmware, apps and software. my OS is windows 10 64 bit. I have tried removing apps and reinstalling, tried reinstalling ledger live, and all the various other methods recommended on the site. I am able to access MEW and see Eth funds and addresses just a consistent error with this app. (I may have not checked Bitcoin on the ledger since 2017 when I split it to Bitcoin Cash, so I do not know if this is a long-standing issue or recent.) I am currently building a Linux machine just to see if I can access it with that instead. I did try with my surface pro windows 8, but it won't even run ledger live for some reason I suspect USB related. any help would be appreciated. incidentally I did contact support 24 hours ago but not heard back yet. invalid channel
06-16 12:55 - 'boss linux' (self.linux) by /u/bossdevelopers removed from /r/linux within 437-447min
''' -BOSS PROJECT: Standing for Blockchain Operative System Series is a new Linux distribution based on ubuntu core with important changes, highly improved security and the default incorporation of blockchain services and support for cryptocurrencies.We have modified the original standards to transform it into a very useful tool for the entire bitcoin community consisting of an interesting combination of security, manageability, speed and performance. It can be used on any x64 X86 machine simply after installation. .-BLOCKCHAIN FULLY DEDICATED: It has been more than a decade since the physical birth of cryptocurrencies, although the idea is over 50 years old. The future will undoubtedly be governed by blockchain systems and governments, banks and corporations are already taking positions in this regard. BOSS is not far behind. Now it is possible to mine even if it has not been done previously. For even more in-depth development of the blockchain applications included in BOSS operating systems, you have your own version of bitcoin PoW PoS mining: BitcoinBOSS. Our own blockchain that is enhanced with BOSS token erc20. -BOSS SECURITY & PRIVACY FEATURES: A weak point of easy access for hacker attacks, such as automatic updates, has been modified so that the user can carry out his updates when he deems necessary and under monitoring. The elevated privileges allow you not only to modify the system, they also allow you to quickly act on files that are prohibited from accessing other operating systems. BOSS has installed active-passive security measures -MAC ADDRESS DEFAULT SPOOFING: MAC address Spoofing privacy + from BOSS. Every time you log in to your BOSS computer, you are doing so with a different MAC address. Privacy thus reaches its highest degrees by making MAC-TRACK impossible -LIGHTWEIGHT RECORD: BOSS has achieved maximum performance in a really small space. BOSS takes up very little space and can be downloaded via torrent or direct download through our mirrors. BOSS has concentrated a large operating system in a super small space of less than 1 GB, which puts us at the forefront among the lightest and safest distributions as leaders in relation to gb-installed applications. -INSTALLATION PROCESS: BOSS installation is simple and guided using the ubiquity installer and depending on the performance of your system it can take between 15-30 minutes in normal circumstances. Download BOSS now and enjoy a high level of performance, security and privacy in an enviable small space. BOSS can be tested after installation, fully or partially installed on your system, together with windows or your favorite operating system. .-POWERFUL RECOVERY TOOL: BOSS is an excellent file recovery tool. The combination of BOSS tools and its elevated privileges allow you to access areas hidden or inaccessible. Simply use BOSS live to freely rescue files from the laptop where the BOSS USB is inserted. Recover Bitcoin paraphrase or .DAT files easier and faster than other recovery programs simply by acceding to the file system where BOSS usb is inserted. -STABLE RELEASES: BOSS V01-LTS Available now for download at sourceforge. [**[link]2 FEATURING -UNITY DESKTOP-BRAVE BROWSER-ATOMIC WALLET-COMMON UTILITIES-ELEVATED PRIVILEGES ENABLED.-MAC ADDRESS SPOOFING-FILE SYSTEM RECOVERY TOOL -WE DELIVER BOSS: Using BOSS as removable OS is recommended if you do not want to install the system. For this our team recommends the use of persistent USB where your session is recorded and ready for the next login, find everything as you left it. BOSS makes available to its users the delivery of these persistent USB devices worldwide via regular mail or messaging. The flat rate of our installation on the USB and shipping to the user is USD 20 to which we must add the shipping costs in the options selected by the user. Please check with our team to process your shipment while this process is automated on our website. Order now your BOSS or a even more customized BOSS with your company requirements, logo etc. We deliver in CD, USB or SD card in your selected size from minimal 4GB, however 16GB and above are recommended. [link]3 [link]4 [link]5 ''' boss linux Go1dfish undelete link unreddit undelete link Author: bossdevelopers 1: *ourcef*r*e.**t/proj*cts/*oss-min*mi*al*ed**ion/ 2: sourceforge.net/pr*j*cts*****-mi*im**al-editio****]^*1 3: pr*vie*.*edd.it/2j0i*g*tk755*.p*g*wid*h*1*00&form*t*png&**uto*w**p*a*p;s=57745a79590667**059****948ab*84e*1*693*7 4: *revi*w.red*.it*9l8yh7ag*7551*png?wi*th=160*&a*p;fo*m**=png*amp;a*to=***p&s=acd*6e9**8d2*a**4d*b*14737cf**72**dcc2*5 5: pr**ie**re*d.it*3*qyxtw*k755*.*ng?wid**=*600*amp**ormat=p*g&am*;au*o=webp&am*;s=02b*905*4cb**f770b77*13a3*6**90fc*6*0d3b Unknown links are censored to prevent spreading illicit content.
Friendly friends, I'm a noob but like to run a full Bitcoinnode on raspberry pi. I barely know linux, so I just used tutorials step by step. Because of one of these I loaded the blockchain on a usb harddrive (formatted for Linux ) with my Windows pc. I also did everything neccesary to install bitcoin full node on my raspberry. How do I make the bitcoin node use the data on the external harddrive? I created a directory like /data and mounted the hd. Whats left?
Hello! I'm trying to get a (remarkably unorthodox) multi-GPU setup working with my system. In short, I'm trying to pair an Nvidia GTX 1050ti and a Quadra FX580 on the same Windows 10 system. My motherboard is a Gigabyte GA-A320M-S2H. The 1050ti is installed in the PCiE x16 slot, and the Quadro FX580 is installed in one of the PCiE 1x slots via a 1x -> 16x riser card(typically used by bitcoin miners). Windows 10 recognizes both devices in the device manager. Yes, I understand the bottlenecks, warnings, and otherwise ridiculous nature of this setup, but I just needs it for additional monitor outputs. Buying a completely new 10-series GPU or new motherboard is out of the budget(already had the Quadro FX580 on hand), and USB-based video cards are too unreliable and underperforming for what we're after. This is what we've tried so far and the results we've gotten:
With no modifications (1050ti in x16, FX580 on riser), the system defaults to the 1050ti and shows no output on the FX580.
With the 1050ti in the riser and the FX580 in the x16 slot, the FX580 shows no output and the 1050ti works without a hitch.
With ONLY the FX580 in the riser OR the x16 slot, the system works without a hitch again; the FX580 works fine.
Booting into an Ubuntu installer shows BOTH GPUs working simultaneously regardless of their slot. This highlights that it isn't a hardware problem, but likely a driver one with Windows.
Here's where things get interesting. Booting into Linux, both GPUs work with no issues, right off the bat. Booting into Windows 10 safe mode and running DDU (followed by a reboot back into safe mode) enables both GPUs, and they both work. Which suggests that Windows 10 is definitely capable of operating in this configuration. However, attempting to install either driver for either card (or even just letting Windows do so on its own) breaks the FX580 and enables only the 1050 ti, giving a "Code 43" for the FX580 in device manager. I'm completely perplexed. Drivers for the FX580 aren't important, as it's just for additional screen real estate, though being able to run the latest drivers for the 1050ti would be nice for best game performance. Is there a way to "lock" the working Microsoft Basics Display Driver to the FX580, keeping it in a working state and allowing the 1050ti to be updated? My friend did this successfully with his personal system with a 1080ti and an old ATI card and it was plug-and-play; both cards worked great and there were no driver issues, so I'm completely stumped as to why this configuration is giving me so much trouble(He is stumped on this problem as well) Any insight or help would be greatly appreciated!
Hi, I have tried to build my own, but it appears like I've gotten rusty in this. It has also reached prices beyond my expectations. But I want to keep it for about 7-10 years. What will you be doing with this PC? Be as specific as possible, and include specific games or programs you will be using. I don't plan to use this for gaming or bitcoin mining. I will process a lot of text from external sources, compute numbers, and train some deep learning models. What is your maximum budget before rebates/shipping/taxes? 4000 USD / 36000 NOK. When do you plan on building/buying the PC? Note: beyond a week or two from today means any build you receive will be out of date when you want to buy. ASAP What, exactly, do you need included in the budget? (ToweOS/monitokeyboard/mouse/etc) Things I would want: CPU: AMD Ryzen 9 3950X (or something fast that has 16+ cores; I will run highly parallel jobs) GPU: GeForce RTX 2080 Ti (large memory is preferred) Memory: 32GB (or more) Motherboard: Preferably an X570 with PCIe 4.0 NVMe support. WiFi would be nice, because there is no network cabling around that area. USB-C heads would be nice, but not required. Case: USB-C is required. I prefer white, silvegrey, but black would be fine as well. No disc drive needed. Storage: NVMe (1 TB should be enough for me, I suppose). I already have an SSD inside my old machine. PSU: 850W or higher would be good. I have plans to install another card in that. Fans: I have no idea how many I need, nor where to mount them. Something less noisy would be nice. If water cooling is less-noisy and comparable in terms of pricing, I can go for water cooling. Which country (and state/province) will you be purchasing the parts in? If you're in US, do you have access to a Microcenter location? Norway If reusing any parts (including monitor(s)/keyboard/mouse/etc), what parts will you be reusing? Brands and models are appreciated. SSD (Samsung evo 850), keyboard, mouse, monitor. Brands of those don't matter. Will you be overclocking? If yes, are you interested in overclocking right away, or down the line? CPU and/or GPU? Most likely, no. However, it appears like both the CPU and the GPU can be overclocked to a certain extent. Are there any specific features or items you want/need in the build? (ex: SSD, large amount of storage or a RAID setup, CUDA or OpenCL support, etc) CUDA and OpenCL support would be required. I already have an SSD. But an NVMe drive is needed. Do you have any specific case preferences (Size like ITX/microATX/mid-towefull-tower, styles, colors, window or not, LED lighting, etc), or a particular color theme preference for the components? I don't like LED lighting. I prefer white, silver or grey cases. Size doesn't matter as long as I can place 2 full size PCIe cards in that. I don't like window, but don't mind if a cheap model has that. Do you need a copy of Windows included in the budget? If you do need one included, do you have a preference? No. It will run Linux. Extra info or particulars: Nothing apart from those. I would be very happy, if you could help me build something along these lines.
How secure is my plan: I want to generate a long-term cold storage wallet using Ian Colemans tool and regular dice
Hi there! I have been into Bitcoin for a few years now, but I took a break from the topic and didn't keep up to date with the latest technology. When I was still active, paper wallets were still the hot new stuff! I do own a Trezor Model T, but I want to be EXTRA paranoid and not trust the hardware wallet to generate a wallet for me. The chances of this are slim, but what if the hardware was modified to generate a wallet that another party has access to? Now, I want to generate a highly secure long-term cold storage wallet for a relatively large amount of Bitcoin and only rely on myself. I already read quite a bit about the topic, but because of my inexperience I have a hard time understanding just how secure the method really is. Then I found this video: https://www.youtube.com/watch?v=j5nejoEGWFw He generates the mnemonic by rolling dice and putting in the results as entropy into Ian Coleman's tool. From that, I created a plan that currently looks like this:
Wipe Trezor Wallet and install the latest image from official website
Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything. The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years. In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.
UPDATED - Groestlcoin Core 2.18.2
This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables. NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.
Builds are now done through Gitian
Calls to getblocktemplate will fail if the segwit rule is not specified. Calling getblocktemplate without segwit specified is almost certainly a misconfiguration since doing so results in lower rewards for the miner. Failed calls will produce an error message describing how to enable the segwit rule.
A warning is printed if an unrecognized section name is used in the configuration file. Recognized sections are [test], [main], and [regtest].
Four new options are available for configuring the maximum number of messages that ZMQ will queue in memory (the "high water mark") before dropping additional messages. The default value is 1,000, the same as was used for previous releases.
The rpcallowip option can no longer be used to automatically listen on all network interfaces. Instead, the rpcbind parameter must be used to specify the IP addresses to listen on. Listening for RPC commands over a public network connection is insecure and should be disabled, so a warning is now printed if a user selects such a configuration. If you need to expose RPC in order to use a tool like Docker, ensure you only bind RPC to your localhost, e.g. docker run [...] -p 127.0.0.1:1441:1441 (this is an extra :1441 over the normal Docker port specification).
The rpcpassword option now causes a startup error if the password set in the configuration file contains a hash character (#), as it's ambiguous whether the hash character is meant for the password or as a comment.
The whitelistforcerelay option is used to relay transactions from whitelisted peers even when not accepted to the mempool. This option now defaults to being off, so that changes in policy and disconnect/ban behavior will not cause a node that is whitelisting another to be dropped by peers.
A new short about the JSON-RPC interface describes cases where the results of anRPC might contain inconsistencies between data sourced from differentsubsystems, such as wallet state and mempool state.
A new document introduces Groestlcoin Core's BIP174 interface, which is used to allow multiple programs to collaboratively work to create, sign, and broadcast new transactions. This is useful for offline (cold storage) wallets, multisig wallets, coinjoin implementations, and many other cases where two or more programs need to interact to generate a complete transaction.
The output script descriptor (https://github.com/groestlcoin/groestlcoin/blob/mastedoc/descriptors.md) documentation has been updated with information about new features in this still-developing language for describing the output scripts that a wallet or other program wants to receive notifications for, such as which addresses it wants to know received payments. The language is currently used in multiple new and updated RPCs described in these release notes and is expected to be adapted to other RPCs and to the underlying wallet structure.
A new --disable-bip70 option may be passed to ./configure to prevent Groestlcoin-Qt from being built with support for the BIP70 payment protocol or from linking libssl. As the payment protocol has exposed Groestlcoin Core to libssl vulnerabilities in the past, builders who don't need BIP70 support are encouraged to use this option to reduce their exposure to future vulnerabilities.
The minimum required version of Qt (when building the GUI) has been increased from 5.2 to 5.5.1 (the depends system provides 5.9.7)
getnodeaddresses returns peer addresses known to this node. It may be used to find nodes to connect to without using a DNS seeder.
listwalletdir returns a list of wallets in the wallet directory (either the default wallet directory or the directory configured bythe -walletdir parameter).
getrpcinfo returns runtime details of the RPC server. Currently, it returns an array of the currently active commands and how long they've been running.
deriveaddresses returns one or more addresses corresponding to an output descriptor.
getdescriptorinfo accepts a descriptor and returns information aboutit, including its computed checksum.
joinpsbts merges multiple distinct PSBTs into a single PSBT. The multiple PSBTs must have different inputs. The resulting PSBT will contain every input and output from all the PSBTs. Any signatures provided in any of the PSBTs will be dropped.
analyzepsbt examines a PSBT and provides information about what the PSBT contains and the next steps that need to be taken in order to complete the transaction. For each input of a PSBT, analyze psbt provides information about what information is missing for that input, including whether a UTXO needs to be provided, what pubkeys still need to be provided, which scripts need to be provided, and what signatures are still needed. Every input will also list which role is needed to complete that input, and analyzepsbt will also list the next role in general needed to complete the PSBT. analyzepsbt will also provide the estimated fee rate and estimated virtual size of the completed transaction if it has enough information to do so.
utxoupdatepsbt searches the set of Unspent Transaction Outputs (UTXOs) to find the outputs being spent by the partial transaction. PSBTs need to have the UTXOs being spent to be provided because the signing algorithm requires information from the UTXO being spent. For segwit inputs, only the UTXO itself is necessary. For non-segwit outputs, the entire previous transaction is needed so that signers can be sure that they are signing the correct thing. Unfortunately, because the UTXO set only contains UTXOs and not full transactions, utxoupdatepsbt will only add the UTXO for segwit inputs.
getpeerinfo now returns an additional minfeefilter field set to the peer's BIP133 fee filter. You can use this to detect that you have peers that are willing to accept transactions below the default minimum relay fee.
The mempool RPCs, such as getrawmempool with verbose=true, now return an additional "bip125-replaceable" value indicating whether thetransaction (or its unconfirmed ancestors) opts-in to asking nodes and miners to replace it with a higher-feerate transaction spending any of the same inputs.
settxfee previously silently ignored attempts to set the fee below the allowed minimums. It now prints a warning. The special value of"0" may still be used to request the minimum value.
getaddressinfo now provides an ischange field indicating whether the wallet used the address in a change output.
importmulti has been updated to support P2WSH, P2WPKH, P2SH-P2WPKH, and P2SH-P2WSH. Requests for P2WSH and P2SH-P2WSH accept an additional witnessscript parameter.
importmulti now returns an additional warnings field for each request with an array of strings explaining when fields are being ignored or are inconsistent, if there are any.
getaddressinfo now returns an additional solvable Boolean field when Groestlcoin Core knows enough about the address's scriptPubKey, optional redeemScript, and optional witnessScript for the wallet to be able to generate an unsigned input spending funds sent to that address.
The getaddressinfo, listunspent, and scantxoutset RPCs now return an additional desc field that contains an output descriptor containing all key paths and signing information for the address (except for the private key). The desc field is only returned for getaddressinfo and listunspent when the address is solvable.
importprivkey will preserve previously-set labels for addresses or public keys corresponding to the private key being imported. For example, if you imported a watch-only address with the label "coldwallet" in earlier releases of Groestlcoin Core, subsequently importing the private key would default to resetting the address's label to the default empty-string label (""). In this release, the previous label of "cold wallet" will be retained. If you optionally specify any label besides the default when calling importprivkey, the new label will be applied to the address.
getmininginfo now omits currentblockweight and currentblocktx when a block was never assembled via RPC on this node.
The getrawtransaction RPC & REST endpoints no longer check the unspent UTXO set for a transaction. The remaining behaviors are as follows:
If a blockhash is provided, check the corresponding block.
If no blockhash is provided, check the mempool.
If no blockhash is provided but txindex is enabled, also check txindex.
unloadwallet is now synchronous, meaning it will not return until the wallet is fully unloaded.
importmulti now supports importing of addresses from descriptors. A desc parameter can be provided instead of the "scriptPubKey" in are quest, as well as an optional range for ranged descriptors to specify the start and end of the range to import. Descriptors with key origin information imported through importmulti will have their key origin information stored in the wallet for use with creating PSBTs.
listunspent has been modified so that it also returns witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output.
createwallet now has an optional blank argument that can be used to create a blank wallet. Blank wallets do not have any keys or HDseed. They cannot be opened in software older than 2.18.2. Once a blank wallet has a HD seed set (by using sethdseed) or private keys, scripts, addresses, and other watch only things have been imported, the wallet is no longer blank and can be opened in 2.17.2. Encrypting a blank wallet will also set a HD seed for it.
signrawtransaction is removed after being deprecated and hidden behind a special configuration option in version 2.17.2.
The 'account' API is removed after being deprecated in v2.17.2 The 'label' API was introduced in v2.17.2 as a replacement for accounts. See the release notes from v2.17.2 for a full description of the changes from the 'account' API to the 'label' API.
addwitnessaddress is removed after being deprecated in version 2.16.0.
generate is deprecated and will be fully removed in a subsequent major version. This RPC is only used for testing, but its implementation reached across multiple subsystems (wallet and mining), so it is being deprecated to simplify the wallet-node interface. Projects that are using generate for testing purposes should transition to using the generatetoaddress RPC, which does not require or use the wallet component. Calling generatetoaddress with an address returned by the getnewaddress RPC gives the same functionality as the old generate RPC. To continue using generate in this version, restart groestlcoind with the -deprecatedrpc=generate configuration option.
Be reminded that parts of the validateaddress command have been deprecated and moved to getaddressinfo. The following deprecated fields have moved to getaddressinfo: ismine, iswatchonly,script, hex, pubkeys, sigsrequired, pubkey, embedded,iscompressed, label, timestamp, hdkeypath, hdmasterkeyid.
The addresses field has been removed from the validateaddressand getaddressinfo RPC methods. This field was confusing since it referred to public keys using their P2PKH address. Clients should use the embedded.address field for P2SH or P2WSH wrapped addresses, and pubkeys for inspecting multisig participants.
A new /rest/blockhashbyheight/ endpoint is added for fetching the hash of the block in the current best blockchain based on its height (how many blocks it is after the Genesis Block).
A new Window menu is added alongside the existing File, Settings, and Help menus. Several items from the other menus that opened new windows have been moved to this new Window menu.
In the Send tab, the checkbox for "pay only the required fee" has been removed. Instead, the user can simply decrease the value in the Custom Fee rate field all the way down to the node's configured minimumrelay fee.
In the Overview tab, the watch-only balance will be the only balance shown if the wallet was created using the createwallet RPC and thedisable_private_keys parameter was set to true.
The launch-on-startup option is no longer available on macOS if compiled with macosx min version greater than 10.11 (useCXXFLAGS="-mmacosx-version-min=10.11" CFLAGS="-mmacosx-version-min=10.11" for setting the deployment sdkversion)
A new groestlcoin-wallet tool is now distributed alongside Groestlcoin Core's other executables. Without needing to use any RPCs, this tool can currently create a new wallet file or display some basic information about an existing wallet, such as whether the wallet is encrypted, whether it uses an HD seed, how many transactions it contains, and how many address book entries it has.
Since version 2.16.0, Groestlcoin Core's built-in wallet has defaulted to generating P2SH-wrapped segwit addresses when users want to receive payments. These addresses are backwards compatible with all widely used software. Starting with Groestlcoin Core 2.20.1 (expected about a year after 2.18.2), Groestlcoin Core will default to native segwitaddresses (bech32) that provide additional fee savings and other benefits. Currently, many wallets and services already support sending to bech32 addresses, and if the Groestlcoin Core project sees enough additional adoption, it will instead default to bech32 receiving addresses in Groestlcoin Core 2.19.1. P2SH-wrapped segwit addresses will continue to be provided if the user requests them in the GUI or by RPC, and anyone who doesn't want the update will be able to configure their default address type. (Similarly, pioneering users who want to change their default now may set the addresstype=bech32 configuration option in any Groestlcoin Core release from 2.16.0 up.)
BIP 61 reject messages are now deprecated. Reject messages have no use case on the P2P network and are only logged for debugging by most network nodes. Furthermore, they increase bandwidth and can be harmful for privacy and security. It has been possible to disable BIP 61 messages since v2.17.2 with the -enablebip61=0 option. BIP 61 messages will be disabled by default in a future version, before being removed entirely.
The submitblock RPC previously returned the reason a rejected block was invalid the first time it processed that block but returned a generic "duplicate" rejection message on subsequent occasions it processed the same block. It now always returns the fundamental reason for rejecting an invalid block and only returns "duplicate" for valid blocks it has already accepted.
A new submitheader RPC allows submitting block headers independently from their block. This is likely only useful for testing.
The signrawtransactionwithkey and signrawtransactionwithwallet RPCs have been modified so that they also optionally accept a witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output. This is compatible with the change to listunspent.
For the walletprocesspsbt and walletcreatefundedpsbt RPCs, if thebip32derivs parameter is set to true but the key metadata for a public key has not been updated yet, then that key will have a derivation path as if it were just an independent key (i.e. no derivation path and its master fingerprint is itself).
The -usehd configuration option was removed in version 2.16.0 From that version onwards, all new wallets created are hierarchical deterministic wallets. This release makes specifying -usehd an invalid configuration option.
This release allows peers that your node automatically disconnected for misbehaviour (e.g. sending invalid data) to reconnect to your node if you have unused incoming connection slots. If your slots fill up, a misbehaving node will be disconnected to make room for nodes without a history of problems (unless the misbehaving node helps your node in some other way, such as by connecting to a part of the Internet from which you don't have many other peers). Previously, Groestlcoin Core banned the IP addresses of misbehaving peers for a period (default of 1 day); this was easily circumvented by attackers with multiple IP addresses. If you manually ban a peer, such as by using the setban RPC, all connections from that peer will still be rejected.
The key metadata will need to be upgraded the first time that the HDseed is available. For unencrypted wallets this will occur on wallet loading. For encrypted wallets this will occur the first time the wallet is unlocked.
Newly encrypted wallets will no longer require restarting the software. Instead such wallets will be completely unloaded and reloaded to achieve the same effect.
A sub-project of Bitcoin Core now provides Hardware Wallet Interaction (HWI) scripts that allow command-line users to use several popular hardware key management devices with Groestlcoin Core. See their project page for details.
This release changes the Random Number Generator (RNG) used from OpenSSL to Groestlcoin Core's own implementation, although entropy gathered by Groestlcoin Core is fed out to OpenSSL and then read back in when the program needs strong randomness. This moves Groestlcoin Core a little closer to no longer needing to depend on OpenSSL, a dependency that has caused security issues in the past. The new implementation gathers entropy from multiple sources, including from hardware supporting the rdseed CPU instruction.
On macOS, Groestlcoin Core now opts out of application CPU throttling ("app nap") during initial blockchain download, when catching up from over 100 blocks behind the current chain tip, or when reindexing chain data. This helps prevent these operations from taking an excessively long time because the operating system is attempting to conserve power.
How to Upgrade?
Windows If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer. OSX If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications. Ubuntu http://groestlcoin.org/forum/index.php?topic=441.0
ALL NEW - Groestlcoin Moonshine iOS/Android Wallet
Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network. GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.
Groestlcoin Mainnet & Testnet supported
Multiple wallet support
Electrum - Support for both random and custom peers
Biometric + Pin authentication
Custom fee selection
Import mnemonic phrases via manual entry or scanning
BIP39 Passphrase functionality
Support for Segwit-compatible & legacy addresses in settings
Support individual private key sweeping
UTXO blacklisting - Accessible via the Transaction Detail view, this allows users to blacklist any utxo that they do not wish to include in their list of available utxo's when sending transactions. Blacklisting a utxo excludes its amount from the wallet's total balance.
Ability to Sign & Verify Messages
Support BitID for password-free authentication
Coin Control - This can be accessed from the Send Transaction view and basically allows users to select from a list of available UTXO's to include in their transaction.
HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled. HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user. Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.
Simplified payment verification for fast mobile performance
Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases. This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats. To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.
If a word is wrong, the tool will try to suggest the closest option.
If a word is missing or unknown, please type "?" instead and the tool will find all relevant options.
NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator. VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline. If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address. VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase. VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).
Fixed size arithmetic
Fast Modular Inversion (Delayed Right Shift 62 bits)
SecpK1 Fast modular multiplication (2 steps folding 512bits to 256bits using 64 bits digits)
Use some properties of elliptic curve to generate more keys
SSE Secure Hash Algorithm SHA256 and RIPEMD160 (CPU)
Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet. If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).
Ability to continue finding keys after first one is found
Includes warning on start-up if connected to the internet
Ability to output keys to a text file (And shows button to open that directory)
Show and hide the private key with a simple toggle switch
Show full output of commands
Ability to choose between Processor (CPU) and Graphics Card (GPU) ( NVidia ONLY! )
Features both a Light and Dark Material Design-Style Themes
Free software - MIT. Anyone can audit the code.
Written in C# - The code is short, and easy to review.
Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode. This wallet was previously deprecated but has been brought back to life with modern standards.
Works via TOR or SOCKS5 proxy
Can use bootstrap.dat format as blockchain database
Import/Export blockchain to/from bootstrap.dat
Import wallet.dat from Groestlcoin-qt wallet
Export wallet to wallet.dat
Use both groestlcoin-wpf and groestlcoin-qt with the same addresses in parallel. When you send money from one program, the transaction will automatically be visible on the other wallet.
Rescan blockchain with a simple mouse click
Works as a full node and listens to port 1331 (listening port can be changed)
Fast Block verifying, parallel processing on multi-core CPUs
Mine Groestlcoins with your CPU by a simple mouse click
All private keys are kept encrypted on your local machine (or on a USB stick)
Lite - Has a lightweight "thin client" mode which does not require a new user to download the entire Groestlcoin chain and store it
Free and decentralised - Open Source under GNU license
Fixed Import/Export to wallet.dat
Rescan wallet option
Change wallet password option
Address type and Change type options through *.conf file
Import from bootstrap.dat - It is a flat, binary file containing Groestlcoin blockchain data, from the genesis block through a recent height. All versions automatically validate and import the file "grs.bootstrap.dat" in the GRS directory. Grs.bootstrap.dat is compatible with Qt wallet. GroestlCoin-Qt can load from it.
In Full mode file %APPDATA%\Groestlcoin-WPF\GRS\GRS.bootstrap.dat is full blockchain in standard bootstrap.dat format and can be used with other clients.
Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node. It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node. Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine. Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in. Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet. Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.
Use your own node
Uses less CPU and RAM than ElectrumX
Used intermittently rather than needing to be always-on
Doesn't require an index of every Groestlcoin address ever used like on ElectrumX
UPDATED – Android Wallet 7.38.1 - Main Net + Test Net
The app allows you to send and receive Groestlcoin on your device using QR codes and URI links. When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.
Add confidence messages, helping users to understand the confidence state of their payments.
Handle edge case when restoring via an external app.
Count devices with a memory class of 128 MB as low ram.
Introduce dark mode on Android 10 devices.
Reduce memory usage of PIN-protected wallets.
Tapping on the app's version will reveal a checksum of the APK that was installed.
Fix issue with confirmation of transactions that empty your wallet.
Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets). Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet. Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.
BTC Node. Need help with Ubuntu and BTC core program. To the Linux experts here in reddit.
The good thing of loosing a post, is that you have to retype everything and this means that you are able to shorten the post. So. TLDR, I have 2 hdd, 80gb and 320, the second one has only, all the Blockchain info, from another already running node. I am not able to tell BTC Core program that the files are already there so he does not need to download 300gb. After hours of Google and linux forums, I am stuck in this issue. Every time I type "bitcoin-qt" on my terminal, it shows as a first download. Any help will be appreciate. Full story. English is not my first language, and this is being typed for second time (please have mercy on my grammar or misspelling mistakes), because I posted the question on linux subreddit nobody give a f..... so I decided to bring it here, posted a short post with the link and the automatic bot deleted because the of the link. I erased both the linux and the bitcoin post, and made a third one new, here, with plain text, copy pasting the info from the linux post. Never appeared on the "new" section of this sub. So hours of typing lost, and here we are. Old Notebook. 80gb drive, and noob to Linux. Although I have some pc and logic knowledge, installed MINT due to a recommendation from a Bitcoin community, but since I have a friend with an already running node, with Ubuntu switched to this one, just to have the same system. Once Ubuntu installed, on the 80gb and pc running, I copy and pasted the whole bitcoin folder from my friends pc to my 320 gb. Up to here all was good. But here is the problem My friend, who does not understand nothing about linux, is owner of a company and has an IT guy who made everything for him, but would not be willing to help me a lot, (just to be good with his boss but right now it is not reachable for me), but when we where on my pc he told me that Linux is very sensitive to ports, in other words, a small usb change, will do a program to loose the path for the files. SO, instead of using the 320gb disk on USB i installed on this notebook second Hdd bay (its an old high end laptop with 2 sata connectors), he was able to set the program and everything went well for a couple of hours, Bitcoin Core program started synchronizing, downloading very little info. I needed to turn of the pc to move it, so closed the program (waited until bitcoin core program told me was safe to) and turn it off, then turn it on again, and the problem was there, bitcoin core program started trying to download the whole blockchain in the spare 2gb of the 320 gb disk. So what it seemed to happen is that even when the disk is installed on a sata bay from the motherboard, as I did not installed ubunutu with this disk connected it's route (adress?) is dinamyc and that is why BTC Core Program lost the files and does not recognize it. After hours of google, linux forums and "askubuntu" i was able to, mount the 320gb disk, first editing the fstab ( i followed the guide in "askubuntu.com/questions/125257/how-do-i-add-an-additional-hard-drive") by the way. Trying to use VIM editor was a pain, it is REALLY difficult to type something there, and save it without pressing a wrong key. I had to cancel and start over at least a dozen times (plus reading several guides), but still was not able to mount the disk (Actually after following the steps, the hdd (320) disappeared from the GUI). went back, erased, and the did the NANO steps, and I THINK that now the hard drive it is fixed (before, any change,when restarting the second hdd took some time to appear, now it seems that is mounted and to a fixed adress). Well, after mounting the hdd, I tryed to call the bitcoin-qt and the initial download page appear and again tries to download from the initial block. I searched over hours "file association in ubuntu", "program files path" etc etc and the only thing I found is how to set up the desired software to open a file. For you to understand my mess, when I did the "user:user" thing, I did not understand completely what I was doing, (yes I had to be in sudo) BUT i think I managed to did the correct thing as both hdd are shown in the Ubuntu GUI. Some additional data is Both hard drives are formated in Ext4 I have (I think that) a fstab.bak before any changes I knwo that linux users sometimes ask for details on the system, just tell me the commands and i can run them to stick any info needed. Thanks for the help in advance.
I just learned about bitkey, and boy am I impressed. Like my actual point is that I think a critical fatal flaw in the crypto economy and bitcoin network is the reliance on centralized hardware manfufactures whose proprietary closed garden systems and also of course centralized exchanges. I think it's just a matter of time before Trezor and LedgerNano become targets, or some rouge intelligence agent releases to the darknet some tool to crack them or compromise them.
BitKey is a bootable system image based on Debian containing everything you need to perform highly secure air-gapped Bitcoin transactions. You don't need to install it to a hard drive because it runs live from RAM. You just write the ISO image to a USB drive or burn it to CDROM.
I'm a die hard open source linux open system advocate, and I think that bitkey is the right step in the right direction. And my point being, anyone who's a developer could make some version of their own to be audited by the public community. Eventually we would have a handful of publically trusted builds by different developers, and this could be done for the major cryptos, or any crypto, but especially monero since it barely has hardware support. But the design of bitkey being an iso image on a cd rom or a usb, set to maximum privacy with two computers and a third device that scans QR codes. (on a side note there are security issues with QR codes, so that is one area for improvement). I'm trying to imagine a world where people can't get safe devices, can't get hardware wallets, and need an open source alternative to compromised desktops. Obviously something as advanced as a linux OS build spread across three devices for airgapping has a learning curve, but UI can increase over time. We have to remember there are a lot of tyrants in this world who want the monero and btc network to fail, want the fungibility and privacy and cash like nature fail, want to backdoor everything, they want to know if you're hungry, if you need to take a shit, before you even know, Minority report shit, but sadly unironically, and increasingly so. Windows is the devil obviously, Apple even more so. We need a world moving towards Linux, RVISC chips, raspberry pis. Even the best intentions of cypherpunk and monero are very very vulnerable without the hardware to back it up. So there really needs to be a move towards this.
"Also posted in /Bitcoin but haven't got any responses" At the moment I am using the blockstream green wallet, which I really like, interface wise etc. but I want more security. I will keep this wallet as a spending wallet with small amounts and have most of the Satoshi's transferred to a "hodl for life wallet". I want to set up an electrum wallet in Ubuntu while offline and delete it afterwards, only keeping the seed phrase. On my android smartphone I will set up a Watch-only electrum to keep track of it. So here's the plan:
Create a new wallet with electrum, on Ubuntu live(offline)
Write down the seeds and keep secure
Write down a couple public adresses
Set up watch-only on the android app(online)
Delete the wallet on ubuntu(or just shutdown Ubuntu live)
Receiving funds should be easy, just send an amount to a public adress and I can verify it on the app.(will test a small amount) Sending funds (which will happen rarely), but I will test with a small amount:
Create electrum wallet using seeds, in Ubuntu live (offline)
In the electrum android app I set up a transaction (online), I copy this to usb
I load the transaction on my electrum wallet in Ubuntu live (offline)
I sign the transaction(offline), copy back to usb
Load the signed transaction in the android app and send (online)
Is this gonna work? Any tips, suggestions? There are probably more secure/advanced ways to do something like this. But although I've used linux/Ubuntu years ago, I'm still a beginner. And regards bitcoin/blockchain just started out getting in depth about a month ago and the more I get to know about it, the more I realise what a legend Satoshi is. Edit: Another side question, if anyone finds out your seed phrase and gets access to your wallet, but won't transfer any funds, will you find out somebody had access? Cause I just tried it with green wallet, I installed the app on another phone, used my seed phrase and entered my account. I could still access with my own phone and wouldn't have known somebody has been in my wallet?
https://preview.redd.it/pepjin4jr1j41.jpg?width=1200&format=pjpg&auto=webp&s=e6933478e1a1d0069050cb70a36fb61550a269a4 Before we plunge profound into the various sorts of cryptocurrency wallets, it is critical to comprehend what cryptocurrency wallets are. It is a blend of a private key and an a public address much like a login ID and a password. The mix of the private key and the public address gives you access to your cryptocurrency and furthermore gives you the alternatives to transact utilizing them. Hardware Wallets: The name is very plain as day! Hardware wallets are hardware devices that are worked with a particular reason for dealing with private keys and public addresses. To a great extent, the hardware wallet is a USB-like gadget with an OLED screen and side buttons that assist you with exploring through the interface. Connecting it to a PC and associating with it over local work area applications for different currencies lift the usefulness of the hardware wallet. The hardware wallet doesn't utilize a battery and can be associated with either a PC or a cell phone. Paper wallets: Paper wallets may appear to be basic with the classification yet it requires some specialized abilities and elevated level of inquiry from the user. In a typical paper wallet, you print the private keys and the public addresses on a bit of paper and your Bitcoins or some other cryptocurrency on it. Perhaps the best bit of leeway of utilizing a paper wallet is that it keeps your private key outside the system and that part improves the security. Desktop wallets: Desktop wallets are the old fashioned sign of cryptocurrencies. They are installable software bundles that can sit on well known operating systems like Windows, Mac, and Linux. Outside the topic of security, any cryptocurrency that is not kidding about itself will dispatch their desktop wallets on the primary day itself. Nonetheless, since it is another software which interfaces with the internet, it is critical to follow the essential security estimates like antivirus and against malware software. Mobile wallets: Mobile wallets, on account of the mobile telephone entrance and the continuous availability, are the most well known sort of wallets at this moment. They are intended to be anything but difficult to utilize and are compatible with both iOS and Android. Regardless of whether not for an iOS application, you will undoubtedly discover in any event a conventional Android adaptation. Web wallets: Web wallets are tantamount to the digital banking interfaces of mainstream Banking. They are constantly associated with the internet and can be gotten to utilizing the web address through programs like Chrome or Firefox. The private keys are held online in the program itself and are inclined to DDOS attacks. Web wallets can either be hosted or non-hosted relying upon the sort of wallet that you use. The non-hosted kind of wallets are prescribed as you are in full control of your funds. Blockchain App Factory excels in employing disruptive technologies after intensive research and discovering new possibilities every day. Get your own multi cryptocurrency wallet to experience seamless and secure exchange of your virtual currencies from us.
Originally Trezor was developed for Bitcoin. Now it supports more different cryptocurrencies including Ethereum. This ETH wallet will work in tandem with your MyEtherWallet.Trezor is famous for the features that make it very secure. It provides 2-factor authentication, advanced cryptography and the opportunity to check transaction details before you confirm. On the other hand, there are a couple of disadvantages. Such as the cost: the Trezor wallet is pretty expensive. If you are not a regular user you probably should consider cheaper wallets. Also, it takes time to access your holdings with this wallet.Thus using Trezor as Ethereum wallet may be a little inconvenient if you are a common user.
Ledger Nano S
Ledger Nano S is also a hardware wallet. It connects with any computers via USB. The most important feature of this wallet is security. As well as Trezor it provides 2-factor authentication. Aside from this, this Ethereum wallet has a PIN code to secure the device itself and also you can back up your account on the recovery sheet. Ledger Nano S gives users an opportunity to check details of transactions before the confirmation. The main disadvantage of the Ledger Nano S wallet is the price. It is cheaper than Trezor, but it is still pricey.
KeepKey is a hierarchical deterministic (HD) wallet. It is also in the group of hardware wallets. KeepKey supports a lot of cryptocurrencies.The fact that this is an HD wallet allows users to generate private keys in an unlimited quantity. Undoubtedly this adds to the security level. Moreover, with the help of this device, you review and confirm every transaction. You can also set up a PIN code and a recovery sentence to make sure your holdings are secured enough. It is easy to start using the KeepKey wallet. You need to download a couple of applications. One is to create a wallet. And with the help of the second one, you will be able to connect to KeepKey through Chrome. Talking about the disadvantages we should mention the price. It is one of the most expensive wallets on the market to use it as ETH wallet.
The great thing about web wallets is that you can easily access them. All you need is an internet connection.
Unlike the most part of hardware wallets, MyEtherWallet is free. Nonetheless, it provides a high level of security by allowing users to store their keys on their own computers. There is no necessity to give any private information when creating a wallet.This Ethereum wallet interrogates with some hardware wallets such as Ledger Nano S and Trezor. Also, this platform gives an opportunity to write smart contracts. In addition, MyEtherWallet provides automatic back up. So users should not remember about this by themselves.Moreover, it’s possible to get a paper Ethereum wallet by going to the “Wallet Info” section. https://preview.redd.it/j7wzg5ki0mh31.png?width=1088&format=png&auto=webp&s=41383744e961877ba6acbf128be7fdcb2f4baf77
First of all, Coinbase is an exchange platform. Usually, it is not recommended to store cryptocurrency on the stock platforms. But Coinbase is often considered to be an exception. This platform has a wallet that is suitable for use as ETH wallet. It is easy to use and has an intuitive interface. One of the major drawbacks of this wallet is that users don’t control their private keys.
MetaMask is not just a popular Ethereum wallet. It is a browser extension. It can be installed on a number of browsers such as Chrome, Firefox, and Opera. This form allows accessing your holdings easily.The good thing is that you don’t need to provide personal information for the registration. Also, there is an opportunity to store the private key on your computer.
There are wallets that are made in the form of a software program. They can be installed on your device. Such wallets are called Desktop Wallets.The security level of these wallets is not as good as of hardware ones.
Exodus is a multicurrency wallet. So it can become your ETH wallet.It is famous for its user-friendly interface. It is a good wallet for those who only start their journey into the cryptocurrency world. Exodus supports ERC20 tokens.Users store their private keys on their computers. This increases the security level. Exodus has a backup feature. The drawbacks of Exodus are that there is no possibility to add any custom tokens and a small list of ERC20 tokens.
Mist is the official Ethereum wallet. So it is a full node wallet. Full node wallet downloads the whole Ethereum blockchain on users’ computers. In other words, it downloads all the data about the ETH network. This type of wallet makes any user a full-fledged member of the blockchain. Mist has developed the way to allow users to interact with their ETH storage easily. It is free. Users don’t provide private information during the process of registration. The only way to access your wallet is to use a password. Your private keys are stored on your computer.The Mist wallet supports smart contracts.
Sometimes it is more convenient to use a mobile wallet, which can be installed on your mobile devices. This type of wallets provides quicker access to your storage wherever you are. Mobile wallets are easier to use than desktop ones, but it is riskier.
Jaxx is free. It supports a lot of cryptocurrencies including ETH. It can work on different platforms such as Linux, Windows, and OSX. There is also an extension for Chrome browser. The interface of Jaxx wallet is simple and good to use. However, the security of this wallet raises some questions.
Paper wallets allow printing private keys on paper. And this printed document is used as a wallet. These wallets are not that easy to access. Although the level of security is relatively high.
In case you are looking for a way to store your ETH in the most secure Ethereum wallet, but you are not ready to pay for a hardware one, try ethaddress. This wallet is free. It provides a high level of security.
The core of this key-generating wallet is 99% identical to the well-considered bitaddress.org.First of all, it’s necessary to download this website from Github, unpack and open the index.html file directly from your computer. The code version control allows to significantly simplify the mutual verification of the executable code. For more security, disconnect from the Internet at the time of creating your wallet.
How to keep your wallet in security?
Whatever wallet you choose you want it to be as secure as possible. Here are some ideas on how to achieve this:
Choose a wallet that suits your requirementsAll wallets are aimed at different goals and ways to use. Some of these wallets offer high security, some provide you with easy access for fast trading. Therefore, you should choose exactly what suits your needs best.
Keep your private key safeAlways make sure that your private key is secure and is stored in a safe place. Moreover, do not share your private keys. No, not with friends. Not even with your parents.
Set up 2-factor authenticationSome wallets offer this feature to increase the security of your coins. Do not ignore 2-factor authentication, set it up for extra confidence in protection against theft.
Backup, backup, and backupNothing protects you better from unforeseen accidents than a good old backup. This way you can keep access to your coins.
Store your funds offlineWith all the security levels offline wallets are still the most secure ones. Therefore, it is better to keep large amounts of ETH coins only on offline wallets.
Tezos is a decentralized blockchain that simplifies formal verification, a method that mathematically proves the accuracy of the code controlling transactions. The Tezos blockchain has its own cryptocurrency called Tezos (XTZ), a cryptocurrency with two main functions – a self-administration system and the ability to form launch contracts using its own programming language – Michelson. If you decide to convert your fiat savings into Tezos or exchange other cryptocurrencies for XTZ, you may have to make a choice among reliable wallets for this. In this article we will look into the best Tezos Wallets so that can help you understand them better.
Nano S is a hard wallet from the product line of Ledger, a French manufacturer company. As all other Ledger products, Nano S traditionally looks like a USB flash drive. But this time, you will need to use the USB cable that comes with the wallet to connect to a computer. Ledger Nano S has a chip that is similar with chips on bank cards or biometric passports. Your private key is stored in an isolated environment and is effectively protected. Ledger Nano S also has a screen on it where you can see each transaction made. In case you lose your Nano S wallet, the account can be easily restored on any other Ledger device. Ledger Nano S supports over 20 cryptocurrencies including Tezos (XTZ).
Trezor Model T
Trezor T is the flagship model from the well-known Czech manufacturer SatoshiLabs. Model T has a color Touch-Screen display, an SD port and a quantity of supported coins – XTZ is among those coins. When Trezor T is not connected to the computer, it turns off and disconnects from the Internet. Thus, user funds are stored on the device beyond the reach of attackers. Trezor hardware case is ultrasonically soldered, making it difficult to be restored after being damaged.
Web wallets can be a simple way to get started investing in cryptocurrency. All web wallets can be used right from a browser without the need of downloading software. Beyond that, many of web wallets offer free mobile apps.
Guarda Wallet is available as a Web, Mobile and Desktop Wallet and a Chrome extension. It supports more than 40 coins and 10,000 tokens as well as XTZ. The web wallet enables to access cryptocurrency from any modern browser, the website itself looks presentable and made convenient to use. Using the mobile wallet, you can create a new wallet or import an existing one. Besides the common functions such as storage, deposit/withdrawal of cryptocurrency, users can instantly buy the exact amount of cryptocurrency using a bank card or exchange coins and tokens.
While Magnum is a multi-asset wallet, one of the best known assets it supports is Tezos (XTZ). Being a light wallet, you do not need to download the full blockchain of any of the cryptocurrencies it works with. The wallet does not keep users’ personal information. As Magnum is a web wallet, it has the extra benefit of being available for nearly any platform, easy of access from any kind of device with an internet browser. Magnum wallet also supports Ledger devices so those can be easily linked to the app.
Mobile wallets are used on your smartphone via an app. Similar to Apple or Google Pay, you can use mobile wallets when shopping in physical shops as cryptocurrencies become more popular and acceptable. Mobile wallets may be safer compared to online wallets and also be easy to use on the go.
AirGap is a wallet, that allows you to keep your cryptocurrency securely on your mobile. AirGap is a system with two device access: you can use your old mobile device as a hardware wallet using the AirGap Vault app to keep the private key there; while your working smartphone will have the wallet itself. The connection occurs with QR codes, this ensures a genuine one-way communication between AirGap Wallet and AirGap Vault. This implies that no private information ever leaves the air-gapped old phone. Besides Tezos, AirGap supports diverse amount of cryptocurrencies.
In spite of being a lightweight wallet, Tezos.Blue does not scant on security or its features. It is an original app and that is why it gets strong protection straight from the operating system. Using the Tezos.Blue you will have actual updates from the network for a truly live operational comfort. Tezos.Blue is also available in a desktop version. Tezos.Blue is also available in a desktop version.
Desktop wallet can be downloaded and installed on a computer. Desktop wallets may be safer if your computer is not, or more preferably, has never used the Internet connection. Desktop Wallets are perfect for storing large amounts of crypto that you don’t want to use on an everyday basis.
HD wallets (hierarchical deterministic wallet) are the wallets that use a single 12 or 18-word mnemonic phrase that is used to identify following addresses and private keys in a wallet software. Atomix is HD wallet that supports Tezos, it merges benefits of decentralized and centralized exchanges. With Atomix, all private keys are kept encoded on the computer. No identity verification or registration is required to use the wallet.
Simplestaking is Tezos focused wallet being a web app and desktop app with support for hardware wallet Trezor Model T. The wallet is developed using NgRx state management and Angular framework.
Galleon Tezos Wallet (Tezori)
Galleon is a smart open source wallet for XTZ that supports both hardware and software wallets on Windows, Linux and Mac. It was developed by Cryptonomic and funded by the Tezos Foundation.
Tezos CLI Wallet
The Tezos CLI wallet can be used by those users who have some coding understanding while it requires the use of command lines. Tezos has mentioned the wallet on its website and has been audited by an independent external security inspector. As the Tezos CLI needs some level of command line knowledge, it can be quite difficult to use.
How to keep your wallet safe
A cryptocurrency wallet can be regarded as a regular wallet with money, but it has advanced features, which increases the level of risk. Simple rules will help prevent the loss of your own savings:
Do not store large amounts for long periods on wallets that do not provide full control. It is better to store large amounts for a long time only in wallets that provide full control over the private key and, accordingly, over digital assets. This will help protect your coins against fraud and cyber attacks.
Encrypt information and back up private keys. In case of reinstalling the PC or the occurrence of force majeure situations, this will help to restore access to the wallet quickly.
Store secret keys on an offline device. It is preferable to use a platform that is not accessible for hacking via the Internet.
Use reliable antivirus software and update it regularly. This will prevent the leakage of personal data that hackers can use to crack passwords.
Register several types of wallets. It will allow you to distribute your funds and use the most suitable wallet depending on the situation.
If you use your Tezos wallet wisely and do not neglect the precautions, the risk of funds loss will be minimized.
BTCMiner is an open source Bitcoin miner for ZTEX USB-FPGA Modules. The boards contain an interface for USB used for communication and programming without the need for a JTAG programmer. One feature that stands out is its ability to use standard components e.g. USB hubs to build FPGA clusters. Korkut - Quick and Simple Image Processing at the Terminal. 4. EasyMiner. EasyMiner is a GUI based ... Learn how to store bitcoins on a USB stick. Storing bitcoins on a USB stick is not as straight forward as storing regular data. Bitcoin private keys are secret codes and storing them on a regular USB stick leaves them at risk of theft if someone were to physically discover the USB. Luckily, entrepreneurs have created unique solutions that allow Bitcoin users to store coins on USB sticks or ... Transcript - USB - Bitcoin Mining Setup Guide. What’s going on every one? This is Fred and today we’re going to build a Bitcoin miner. All right. So, if you’re unfamiliar with Bitcoin I do have another video that has all the 10 things that you need to know about Bitcoin. So, give that a watch, get caught up, come back and we’ll get started. So, here’s all the pieces that you need to ... Install the Linux OS. Once it is completed, you need to install the Linux OS on your mining rig. I am not going to explain this process, since it is pretty straightforward and varies because of each individuals hardware. I will however give a brief overview of how I installed the Linux OS. Linux . By default Bitcoin will put its data here: ~/.bitcoin/ You need to do a "ls -a" to see directories that start with a dot. If that's not it, you can do a search like this: find / -name wallet.dat -print 2>/dev/null Mac . By default Bitcoin will put its data here: ~/Library/Application Support/Bitcoin/ Directory Contents Files . An overview of these is in files.md in the Bitcoin Core ...
This video will demonstrate how to create an account at minergate and how to mine bitcoin in Linux. MINERGATE LINK: https://minergate.com/a/e13126b573b894c64... sudo add-apt-repository ppa:bitcoin/bitcoin sudo apt-get update sudo apt-get install bitcoin-qt bitcoind Linux terminal new stuff: clear, ll, cd, touch, echo, cat, shutdown www.bitcoinhackers.org There are many different Bitcoin wallets for Linux, but one of the best wallets available to use is Bitcoin Core. One of the main reasons to go with it is that it’s from Bitcoin officially, so ... Short tutorial on how to install the Bitcoin Core wallet on Linux. http://teklordz.net. An installation guide on debian-based linux distributions for bcoin bitcoin implementation.