How to Install VirtualBox 6 on Debian 10 - Bitcoin

Trezor Troubleshooting Guide

I've noticed some redundancy in some of the issues raised on this subreddit, thought I'd start a generic troubleshooting thread of what I've found useful. I'd appreciate any suggestions mods or other experts might have.

I - Prerequisite

  1. Read the FAQ
  2. Read the Users manual
  3. Read the Developers guide
  4. Search the Wiki
  5. Try the trezor Troubleshooter

II - Trezor connectivity / stuck spinning circle

  1. Try different cable / USB port / computer
  2. Try without crappy Antivirus software.
  3. Manually add the bootloader registry value just to be paranoid.
  4. Install WinUSB driver with Zadig.
  5. Try disabling browser extensions / ad-blockers.
  6. Try Chrome Guest Mode (easiest way to disable extensions)
  7. Try different browser (Chrome / Chromium / Firefox / Brave)
  8. Try WebUSB
  9. Try Android
  10. Try VirtualBox
  11. Try old-wallet.trezor.io
  12. Try beta-wallet.trezor.io
  13. Try beta-wallet.trezor.io/next

III - Updated FW, coins are gone

  1. Try Legacy Account section.
  2. Did you use the right seed?
  3. Did you use the right passphrase?
  4. Did you enter the recover seed words in the order the Trezor asked you to (hint: not first to last)?
  5. Did you verify that your recovery seed words are in the word list?
  6. Did you check all accounts (click add account) for transactions, or check all MEW ETH accounts (next page) as well?
  7. Did you check your transaction history (Legacy and Segwit) to see if anyone moved coins while you were dormant?
  8. Did you regularly do a dry-run recover to verify that you actually possess the recovery seed that the Trezor is operating with?
  9. Check to see if your brother-in-law found your seed and stole your coins.
  10. Check to see if the digital copy of your seed was hacked.

IV - Can't / Don't want to update FW.

  1. Try performing a dry-run to ensure you have the right seed.
  2. Say a prayer and hope you have the right passphrase.
  3. Use an old version of Electrum / MyCrypto / MEW to see if you can find TXN history.
  4. Use an old version of Electrum / MyCrypto / MEW to move most funds.
  5. Use an old version of trezorctl to move the other funds.
  6. Buy a second Trezor and update that.

V - I'm new to this, How should I backup my seed / passphrase.

  1. Make it simple, your kids / kin may be the ones doing the recovery.
  2. Make it secure in a lockbox or safe or something reasonable.
  3. Make it accessible in case there is market volatility.
  4. Make it resilient and redundant in case there is a fire / zombie apocalypse.
  5. Don't make it digital, hackers are smarter than you are.

VI - I forgot my PIN now I can't access my device

  1. Say a prayer and hope you have the right seed.
  2. Say a prayer and hope you have the right passphrase.
  3. Wipe your device then recover with the seed / passphrase to reset PIN.
  4. Don't forget again.

VII - I forgot my seed / passphrase, what now

  1. Nothing, you effectively put physical currency in an incinerator, no getting it back.
  2. Realize that you've learned a valuable lesson that will serve you well in the future.
  3. Advocate to others the importance of following section [V] above.

VIII - I want support for CrappyForkCoin and I want it now!

  1. Figure out what the fork_id is for CrappyForkCoin and write your own coin JSON file.
  2. Use your JSON file to compile your own CrappyForkCoin trezor FW.
  3. Flash your CrappyForkCoin trezor FW to your personal trezor.
  4. Use trezorctl to make CrappyForkCoin transactions.
  5. Read the wiki on how to add coins just to make sure.
submitted by brianddk to TREZOR [link] [comments]

I think I understand the basic idea here... but let me know if this is a viable way to use Tails, or if I'm actually an idiot.

EDIT: I realize the folly of trying to use Tails in a VM. so im throwing that idea out the window.
So if I set up a Tails OS in persistence on a USB, can I boot that from Virtualbox? And would I lose bitcoins left in the Electrum wallet if I restarted Tails in this state?
Additionally, will this compromise any anonymity if I'm running VB from a win10 setup using a local account, having telemetry and all that junk turned off, using a VPN, then on the VM have Tails running Tor.
The reason I want to do it this way is I have all my encrypted password files on my win10 setup so I can easily copy in my credentials and PGP info when logging in. If I boot to Tails from my PC directly, I lose this simplicity. Its not the end of the world if i need to just suck it up and manually type it all. But if this sounds like a safe setup for a newb not looking to do very much, let me know.
I don't wanna overdo my opsec to a point where I don't understand it. I feel like that could just make it less effective. But I don't want it to be so simple that I expose myself.
submitted by AnoK760 to tails [link] [comments]

Comprehensive and honest user feedback from a Golem User

Hey everyone! Last week, a reporter approached us for words on Golem, and it was the first time a journalist actually also asked us to connect with a user for feedback. I told them to chat with PSVjasper99 and he provided super great feedback. He sent it to me and I shared it with our team, that appreciated it a lot. We consider your feedback extremely important, so posting here the report he prepared, and hoping to kick off a round of further feedback from all the Golem community. Thank you in advance!
__________________________________________________________
Experience Golem
Jasper V. 15-8-2018
I came across Golem around August of last year. A little background first:
I was starting my first semester at university that year and was already interested in the whole cryptocurrency world. At first, like many, I was full of scepticism. I mainly knew Bitcoin from being used on the darker side of transactions. Right as I started to learn about Golem, which was pretty much under pressure since their first major release Brass Beta was due summer 2017 and had not come out yet, I started my new study at the Technical University. One of my first major subjects required me to run tasks and complete FEM analyses on my university laptop (I study mechanical engineering and materials). These took days to complete. That was the point I bought my first Golem tokens. The use was to use these tokens if in the future, CAD renders and FEM analyses were to be implemented into Golem. Of course, the magic month December came and we all know what happened. I continued to hold on to my tokens and accumulated some more between March and now. Never sold nothing.
Of course this was at first all based around speculation. I first installed testnet in November (I think it was). What I first realised was that it was pretty spectacular the way it worked. The UI was clean and organized, instructions were clear and off rendering we went. This did not always go to plan however, because many of the tasks timed out. This was however, not a major problem since Golem allowed to use tGNT for testnet so we could attempt tasks as many times as we wanted. Updates came along every three weeks or so. The main files I rendered were demos that were also provided to test the capacity of the network. I had a success rate of about 25-35% estimated. A lot of tasks timed out or had a few ‘stripes’ not rendered correctly.
When Golem Brass Beta was launched about 4 months ago, I think the whole community was very excited. I only run Golem when I am actually using my PC. Running Golem whilst not using your PC would not only be very inefficient, but expensive too. It is not like mining. At the moment there is a clear deficit in requestors as opposed to providers. People should not expect when they launch Golem, that is computing the whole time (yet!). I have had days with tens of tasks with some good rewards, about 6 GNT per day, and days after which I had not had a single task ever since. Therefore, I often use Golems ability to change hardware allocation a lot. As I’m typing this, I offer 6 of my 8 threads to Golem. When I am gaming, I allocate 4 of my 8 threads and when I’m playing intensive games or VR, I allocate 2 of my 8 threads. My RAM and SSD space is always on full, since I have enough of that and it does not really impact performance that much.
I have now completed about 200 tasks across two nodes. Seeing how Golem actually worked was pretty cool and it has come a very long way since testnet and continues to improve. Golems UI is very smooth and I really like the vertical placement of the window. The application starts with a clear introduction, ability to protect your node with a password (access to wallets), and clearly tells you what to with port forwarding etc. This does not always go well, we see a huge surge of people on Reddit and the Golem Rocket Chat who have problems configuring their ports and connections. Thankfully, there are a lot of active team members and enthusiasts on the Rocket Chat who always find a solution. A major thing that has improved are the pop-up messages when hovering over items, and the understandeability of the whole application. Everything is well documented in the help document provided and the application works smooth without stuttering. Tips are provided as well for using the right settings when requesting a task on Golem, concerning task timeout, amount of subtasks etc. The price is basically determined via supply and demand, which is an advantage and could as well be a disadvantage. I hope Golem becomes large enough to not be influenced by big players making price agreements and who could, in theory, manipulate the market. However if this is not the case, this system ensures that the price paid for the computation is fair.
However, Golem certainly has its flaws. Not all of these were noticed by me, but I also talk to some enthusiasts and friends daily that always have Golem running. Most likely the team is working on these problems:
However, does this impact the implication of Golem in the real world? I have no idea. Golem currently only has Blender rendering POC on Mainnet and the target audience for requestors is not that huge. However, with the next release that should increase. Therefore, I don’t see an average Joe use Golem in the near future, but if more types of computation would be implemented, that could certainly change. If prices remain competitive, there is a huge (growing!) market available to Golem. Whether there is a hurdle for people to go to dApps from regular apps, probably. I think the majority of the projected users don’t quite yet see the added value of decentralization. Furthermore, I can imagine people disliking the fact to go to an exchange and exchange fiat for BTC or ETH, then to exchange for GNT, and then to transfer that GNT to Golems app. Golem is aware of this and I can see this (for many dApps) be the main factor contributing to the (not yet) mass adoption of dApps. Furthermore, the ever-changing value of these tokens is what might scare people off.
I am not a Blender artist and therefore I am not really able to use golem as a requestor. I can occasionally run some demo files. I have therefore not used any regular apps that provide the same service. Hopefully, this will change in the future, with the implementation of more use cases and the opportunity for the community to build on top of Golem.
So to conclude, will dApps ever replace regular apps? I see a few reasons as to why they might and a few reasons as to why they won’t. The main key is to improve the number of use cases, as well as the availability, keep the price competitive and the usability up. First, the issues above need to be solved for Golem specifically from my point of view. Some proper marketing could not hurt as well, trialling at universities and companies. If dApps are adopted by a few large(r) players (with the right use cases), domestic (mass) adoption could follow. However, I think it is hard to comment on this seen as the technology and development is still taking baby steps. I hope there is much more to come!
submitted by mariapaulafn to GolemProject [link] [comments]

List of Lightning Network wallets, node guides for different OS, payments processors

credits to u/bitusher who initially posted this list here.
Keep in mind that this list likely will be incomplete a few weeks from now on, as new wallets (like LND wallet, ZAP, Shango etc) are in the late development phases and will come online "soon", as well as new merchants, new guides etc.
LN on IOS – LND Thin Wallet:
https://itunes.apple.com/us/app/lnd-thin-wallet/id1375747279 (You need to connect to your own LN node)
LN on Android:
Bitcoin Lightning Wallet:
https://play.google.com/store/apps/details?id=com.lightning.walletapp
Eclair (pay or send only for android for LN / send and receive all btc onchain txs)
https://play.google.com/store/apps/details?id=fr.acinq.eclair.wallet.mainnet2
Eclair youtube tutorial 1
Eclair youtube tutorial 2
LN on Linux or Ubuntu:
https://medium.com/@dougvk/run-your-own-mainnet-lightning-node-2d2eab628a8b
https://medium.com/@halilyaln/how-to-setup-bitcoin-lightning-maninnet-network-node-ecbe6ff242f2
https://medium.com/coinmonks/bitcoin-setup-your-own-lightning-node-on-mainnet-94337bda09fa
https://www.youtube.com/watch?v=DLWkOqo0Tak (or with windows in virtualbox)
LN on VPS:
https://www.youtube.com/watch?v=LHonpK80k94
https://www.youtube.com/watch?v=9p-O4Odiit4
LN on raspberry-pi:
https://github.com/Stadicus/guides/blob/masteraspibolt/README.md
https://brettmorrison.com/running-a-bitcoin-lightning-full-node-on-raspberry-pi
https://thebitcoin.pub/t/the-perfect-bitcoin-lightning-node-tutorial/33437/1
https://medium.com/@meeDamian/c-lightning-node-on-rbp3-b950660fb835
LN on ODROID:
https://magazine.odroid.com/article/thundroid-perfect-bitcoin-lightning-node/
LN on Windows:
https://medium.com/coinmonks/guide-setup-a-lightning-network-node-on-windows-8475206807f
LN on OSX:
https://medium.com/@6hundred/setting-up-bitcoin-lightning-network-node-on-macos-is-peanuts-eclair-5afbef553d71
LN on Google cloud:
https://medium.com/coinmonks/setup-bitcoin-lightning-server-on-google-cloud-guide-95811c439b32
Hosted Lightning payment processors:
https://strike.acinq.co/
https://opennode.co/
https://globee.com/
https://coingate.com/
https://btcpay-server-testnet.azurewebsites.net/ (Free LN payment processor)
LN megathread:
https://www.reddit.com/Bitcoin/comments/7pwna9/lightning_network_megathread/
Stores that accept Lightning payments:
http://lightningnetworkstores.com/
accept LN for free with:
https://btcpay-server-testnet.azurewebsites.net/
https://github.com/btcpayservebtcpayserver
Ultimate guide to setting up BTCpay:
https://np.reddit.com/Bitcoin/comments/8f1eqf/the_ultimate_guide_to_btcpay_the_free_and/
videos as well:
https://www.youtube.com/channel/UCravp5_XnVjNjlpbr9G0YCw/videos
https://www.youtube.com/channel/UCpG9WL6TJuoNfFVkaDMp9ug/videos
submitted by TheGreatMuffin to Bitcoin [link] [comments]

Homelab collective ressources post!

Hey guys!
I'm fairly new to this sub and to having a home lab in general and I found this community to be so kind and helping, I wanted to give back what I've learned. I'm seeing a lot of questions asked around on improvements and on what to do with x extra hardware so I thought it would be nice to have a thread to regroup that.
 
I'll put here some stuff I gathered and the most common questions I've seen, feel free to contribute and i'll update the post along.
 
Latest Additions
 
Homelab Dashboard
Posts about dashboards have been growing lately and here are some of the best that were kind enough to provide us with their sources.
User Screenshot Source
yours truly http://imgur.com/a/GhCNH https://github.com/Gabisonfire/dashboard-q
lastditchefrt http://i.imgur.com/5zQdao4.png https://github.com/d4rk22/Network-Status-Page
_SleepingBag_ http://i.imgur.com/Ql9ZM4W.png https://github.com/jsank/homelabdash
NiknakSi https://niknak.org/extras/sysinfo TBA
DainBramaged http://imgur.com/jYNlUEQ https://github.com/gordonturneBigBoard
michaelh4u https://i.imgur.com/XkZwMKj.png https://github.com/michaelh4u/homelabfrontpage
spigotx http://imgur.com/a/1zMht https://github.com/spigotx/HomeLab2
SirMaster https://nicko88.com/ https://github.com/dashbad/plex-server-status
yourofl10 http://imgur.com/a/AyROa TBA
TheBobWiley http://imgur.com/a/oU6d3 https://github.com/TheBobWiley/ManageThis-LandingPages
0110010001100010 http://i.imgur.com/iwtQcsL.jpg https://github.com/danodemano/monitoring-scripts
mescon & SyNiK4L https://i.imgur.com/gqdVM6p.jpg https://github.com/mescon/Muximux
ak_rex http://i.imgur.com/a/RJkrT https://github.com/ak-rex/homelab-dashboard
 
Or build yours from scratch: PRTG API, ELK, Grafana, freeboard, JumpSquares
 
Some other resources: Custom Monitoring Scripts by 0110010001100010
 
Credits to apt64 for his original post
= Pi specific =
 
= Download Automation =
 
= Virtualization =
 
= Monitoring =
 
= Media Center =
 
= Remote access =
 
= VOIP =
 
= Networking =
 
= File Servers/Storage/RAID =
 
= Cameras =
 
= Documentation =
 
= Dynamic DNS =
 
= Backup =
 
= Creating network diagrams =
 
= Guides =
 
= Misc =
 
That's all I could come up with on top of my head + some research, passing over to you guys so we can get a nice complete list!
 
Let's try and stick with free(or mostly) softwares, let me know if you guys feel otherwise.
submitted by Gabisonfire to homelab [link] [comments]

I have 1.5 or such ETH on the Rinkeby Test Net on Metamask...nobody is giving me a straight answer on how to move that to the the main ETH network.

All the posting I've done on Minds, I tried to make them as quality articles or links to music and videos that are part of what I'm willing to put effort into.
People over there have tried to help me,although one asked for my keys saying he would do the transfer himself...hm no, I'm not easily fished, I'm on the internet since 1997, before the internet became known as "social media".
Anyway, I want to move my stuff from that Rinkeby Test Network, when Minds ran on that, I had my Minds detect Metamask and my tokens went into My Onchain and Receiver address, which are the same when things are normal, iot about 20 tokens in Offchain, basically that ETH I can't move. I've been given guides, help on the Help group and the MindUsers group but what they say doesn't check out with reality, I've shown them screengrabs....it's just not working. Have 500 USD worth of ETH and it seems like it wa practise ETH/tokens that do not count because Minds was in Beta mode afaik is what I'm starting to think. My wallet address is the same on Rinkeby and Main, which I know is normal. Metamask is supposed to main everything easier, but even trying to do it outside of Metamask doesn't work, like giving the task to the people at Minds who will do it for me, when I click transfer after inserting my wallet address, no message that it gets taken care of.

I'm rather mad, there's this issue on Minds, and Steemit says a free account takes 1-2 weeks to be given, I have an account where I gave them my phone number for their damn SMS verification to consider me for a free account, it's been 6 months, no damn email activation like they told me I would get.I even had to try other of my email addresses with friends cell phones to get the SMS and nope, those 3 other accounts I made, with different IP addresses, that I keep within my real country so they don't think it's a suspicious request and ignore it, although one might have been done with me being on my VPS which is in the USA, although even things like Maxmind can't figure out its real location, that's some great sec from them, it says I'm in Canada even when I look up the IP on THE IP address info website/API,

I'm really aggravated by the situation. With crypto too. I had mined for 800 USD worth of Dashcoin through minergate and close to 2 fantomcoin since it could mine both cryptos at the same time and since I wasn't able to have dashcoin-linux or dashcoin-windows sync (it's a local DSH wallet), the a-holes at minergate stole all of my DSH by August 31st, no warning they would stop supporting DSH and 1 month to move it elsewhere, likely knowing it's a crypto that isn't in many good local or even online wallets, I couldn't find a single place to move the DSH too. It's a shitload of power drawn from me to have 800 something DSH, since it's not worth much, but it's the coin I could mine the second fastest, through commandline while in Windows 7 (I dual boot Mint 17.3 and Win7, although I might soon just have a Win7 virtual machine in virtualbox...I don't boot in it enough to warrant it at this point pretty much and run most of my games through Steam or CrossOveWine. Anyway getting away from the subject. I can only mine Monero really efficiently through CryptoMiner for AMD GPU and my AMD Radeon HD 7870 and a Radeon HD 7850 connected to work together with CrossOver, I get real decent Monero mining, also Ethereum since I got an AMD-FX8350 overclocked to 4.2ghz for all 8 cores, not anything crazy, but I got great cooling. I would eventually move the ETH I mined on that other place (not minergate) and the real luck I had when I mined 0,0017 Bitcoin Gold, I know my graphic cards are getting old hence my interest in being paid for my efforts to be relevant online and it seems like I can't get that either.
submitted by xMrCleanx to minds [link] [comments]

how do you fix a broken bitcoin~qt state, where you send money to someone and it never confirms, but then you can't spend it because it thinks it's already been spent?

Update: I decided to just go ahead and add this wallet to blockchain.info and now it says that I have 99mBTC and it shows no history of yesterday's transaction for 130mBTC nor does it give any indication of where the other 38mBTC might have disappeared to; I don't think I ever spent 38mBTC on anything.
So I'm still pretty confused; most likely it is a user error on my end since with the wallets that were below a certain threshold I never bothered keeping track of any of the accounting, since at the time it wasn't worth that much.
This is not just a problem for me, but a problem for the friends and family I gave bitcoin to. I have initiated some transactions that never confirm, and I am paying the recommended fee, and I'm not sure how to get them to re~initialize and post properly, or otherwise cancel them and reset the status.
The transactions get stuck with a gray question mark: http://i.imgur.com/JLOQjBa.png
I tried to do some debugging but I'm not sure what I'm doing: http://i.imgur.com/1uYbxlm.png
I have an older copy of the wallet saved somewhere, but because I changed the passphrase I don't think it would actually work if I tried loading it, but I can try that next. I did manage to buy a month of reddit gold with this same wallet on this same instance of Bitcoin-Qt (on Windows 8.1) and I don't think I did anything different for this transaction.
I can't really afford to throw away $100 worth of coin over some silly technical glitch :( It's Xmas Eve and I was hoping to take care of some gifts so if I can get this out of the way today I can take care of some stuff today instead of waiting til after the holly~daze.
submitted by katihathor to Bitcoin [link] [comments]

__Anyone have Tor working consistently on Electrum? (have been trying with solutions for over 17 hours!)

Hello hello, I know this has come up many times before but as I am now in my 17th hour of troubleshooting and my circumstances may be different, I am asking the lovely people here out of sheer determination.
 
__SITUATION
With Tor browser running and happy, one manual setting I had a bit of luck with was:
4yi77lkjgy4bwtj3.onion - 50001 - SSL off
Socks5 localhost 9050
No 'Proxy user' or 'Password'
Unchecked 'Use Tor proxy at port 9150'
 
The above downloaded something in history but with no details other than 'unknown' in the date column. I believe this may be the initial test amount I sent from coinbase as it was so negligible, Electrum shows the balance as 0 and the address is showing as 'Used' under the addresses tab.
 
I am trying to receive a new amount that was also sent but having not been able to consistently connect to any servers, I eventually deleted the blockchain_headers file in the hope it would re-download but it now stays on 0kb even on the one occasion it showed synchronising which was left for 11 hours. Both addresses are showing as confirmed on blockexplorer.com
 
I have tried every .onion server from here: 1209k.com/bitcoin-eye/ele.php with SSL on for 50002 & off for 50001. Alongside every combination of every setting.
 
I have done all the standard troubleshooting of restarting, disabling firewalls/antivirus on the host machine, cleaning dnscache/cookies/etc.
 
Please forgive my lack of knowledge on these things as I can only assume that as the initial server above now not appears to be working, I assume it may be dead/offline. I just wish there was a way for Electrum to automatically check a list of Tor servers until it finds a connection.
 
I should mention that, unfortunately, I am currently limited to version 2.8.2 as am running it on a XP Virtualbox. I am aware that this is not ideal but I kind of gave up after 6 solid days trying to get a working Linux distro less than 200mb as my Linux knowledge was too limited in ensuring guess additions, etc.
 
As I believe it 'was' working and no variables have changed, I am tearing my hair out trying to get it connected.
 
__QUESTIONS
Do I just keep trying different .onion servers till one connects? If so, does anyone have any working ones?
 
When I've successfully had the red icon change to Synchronising or blue, it usually happens instantly after entering the server details - how long would you suggest waiting between each try?
 
I have given it this much effort as research suggests Electrum is the easiest and no other wallets allow for features such as dynamic or replaceable fees; unless anyone knows of any?
 
Judging by how frequently 1209k.com/bitcoin-eye/ele.php refreshes with new .onion servers; am I right in assuming these servers come and go constantly. If so, what do other Tor Electrum users do when they want to use Electrum - do they just try dozens of servers till one works?
 
Do I need to be forwarding ports if Tor browser is always running?
 
Do I eventually need to be adding firewall exceptions once I have them turned on?
 
Although I am very new to all of this, I was hoping that for something that is fast approaching its decennial anniversary; there would be a few more robust solutions. Perhaps most of my issues boil down to my version limitation - who knows.
 
As you can tell, this issue has taken a usually highly chilled chap to a state of deep frustration so I cannot thank you enough if you have a couple of moments to help a fellow human out. It really would mean the world to me.
 
Eternally grateful,
 
-mawvius
 
 
EDIT: typos
 
 
submitted by mawvius to Electrum [link] [comments]

Tested, step-by-step tutorial to run a 21 Bitcoin Computer as a virtual machine

Many thanks to ButtcoinEE and ecafyelims for initial pointers, but if I understood correctly, both users said they hadn't actually tried it themselves. So here comes a tutorial based on something I actually tried. Best of all: You don't even need a Raspberry Pi! We'll run it as a virtual machine.
The first step is to get a Debian 8 (Jessie) installation up and running. You might want to install that inside a VMWare/Virtualbox machine. I'll be using Vagrant here ( https://www.vagrantup.com/ ) which makes it easy to manage virtual machines like that and already has a Debian 8 image in the catalog. So get Vagrant for your platform and then do something like this:
vagrant init ARTACK/debian-jessie vagrant up 
You should now be able to SSH into the machine:
vagrant ssh 
Now that we have a Debian up and running, let's first get some packages we'll need later:
sudo su # become root apt-get update apt-get upgrade apt-get install apt-transport-https git cython3 python3-setuptools 
Add the 21 Debian repository:
echo "deb https://apt.21.co stable main" > /etc/apt/sources.list.d/twentyone.list apt-get update 
It'll complain about a missing GPG key, but you can just ignore that.
We should be able to do 'apt-get install two1' now, but it complains about a missing package 'python3-sha256'. The reason for that is probably, that we are doing this on a x86 architecture, where the packages are slightly different than the Raspberry Pi's ARM architecture. So we'll just manually install the package and have it ignore the dependency errors:
aptitude download two1 dpkg -i two1_1.0.0-1_all.deb 
Now let it try to fetch as many of the dependencies as possible:
apt-get -f install 
And try to install again (had to do this again, not sure why):
dpkg -i two1_1.0.0-1_all.deb 
The 21 binary should now be available:
which 21 # => /usbin/21 
Before we can run it, we'll need that missing python-256 package. We can install it manually from https://github.com/cloudtools/sha256 :
git clone https://github.com/cloudtools/sha256.git cd sha256 python3 setup.py sdist python3 setup.py install 
Now try to get a status report via the 21 tool:
21 status 
If everything worked out, you should see something like:
You do not have a Bitcoin wallet configured. Let's create one. Press any key ... 
and will also be asked to pick a username for a 21.co account.
All 21 Bitcoin computers are networked together into a VPN using the tool ZeroTier ( https://www.zerotier.com ). Let's also set that up:
wget https://download.zerotier.com/dist/zerotier-one_1.1.0_amd64.deb dpkg -i zerotier-one_1.1.0_amd64.deb 
We'll have to extract the credentials for the specific network they use from 21's zerotier package:
mkdir credentials cd credentials wget https://apt.21.co/pool/z/ze/zerotier-one_1.1.0-1_armhf.deb ar x zerotier-one_1.1.0-1_armhf.deb tar xf data.tar.xz cp valib/zerotier-one/updates.d/ZeroTierOneInstaller-linux-armv6l-1_1_0 /valib/zerotier-one/updates.d/ 
Before we join the network, we need to lock down our machine. That's actually a bit tricky, as these Vagrant images aren't really designed with security in mind, but rather only to be used for local testing. I think it should be enough to do:
passwd vagrant rm /home/vagrant/.ssh/authorized_keys 
Note that you won't be able to use 'vagrant ssh' any longer afterwards, as we just deleted the standard Vagrant key-based login. You'll have to use 'ssh [email protected]' instead. Now we are ready to join the network:
wget https://gist.githubusercontent.com/balajis/6d495bb40fb157a58677/raw/21-join.py python3 21-join.py python3 21-join.py # might have to try this twice as well ifconfig zt0 # will show your new IP within the VPN 
The 21 tools have a concept of both an on-chain balance and an off-chain balance - the latter being managed by 21's server. You can deposit to your on-chain balance, but currently the only way to increase the off-chain balance is by mining or by receiving payments from others. Without the mining chip it's therefore a bit tricky to increase that off-chain balance. I hear that a feature request is being considered, to allow moving funds from on-chain to off-chain.
That's all! If you want to give it a shot, you should probably move fast, as 21 has some DRM in the works, as per this comment: https://www.reddit.com/Bitcoin/comments/3tnjz7/tutorial_turn_your_35_raspberry_pi_into_a_21/cx7tih3 .
This was brought to you by https://coinado.io/ - cloud torrenting for command line fans. Check us out - we are also big on micropayments! ;-)
submitted by coinadoio to Bitcoin [link] [comments]

Electron cash ended up being safe for me

I moved all my bitcoins to a new wallet, spun up a debian machine with virtualbox, downloaded the latest source code release from fyookball's repo, did some annoying command line commands, started electron cash up and tested it out. So far I have successfully sold about 80% of my bcc using shapeshift.io, waiting for some refunds from failed shapeshift exchanges (their support told me these were caused by the transaction malleability issue) to sell the rest.
But my bcc weren't stolen, so I wanted to mention it gets 1 point from me.
submitted by fresheneesz to btc [link] [comments]

State of the Redd-Nation 2016

GoodBye 2015 - Hello 2016

X-Posted ReddcoinTalk forum
I want to take the opportunity to thank everyone who has been a part of the community and supported the Reddcoin Project over this last year. It would be fair to say that 2015 was quite an eventful year in the life of Reddcoin. Unfortunately most of it was probably not the type of activity that helps promote a coins growth. I don't want to dwell on it too much now as it is history, but rather use this as an opportunity to finally close the door on this chapter and put closure to the events of the last year.
Trading wise, as the fireworks burst overhead on NYE the price of Reddcoin was still sitting sub 10 satoshis (trading between 4-6) after declining from a high of 13 satoshi in the early half of the year. The price has somewhat stablised throughout the year as it has bumped along in a downward trend. I am not going to make any speculation on the price for the coming year.
That said, it was not all doom and gloom and I am looking forward into 2016 as an eventful year.
I am excited!!
So as the year 2015 was coming to a close, you may have noticed my communication drop off considerably in the last couple of months. I have had a number of personal activities on my plate that diverted my attention socially.
Suffice to say, I have still been checking in as regularly as possible and when I have had some spare time. I have also used any other available time to be productive in the crypto space. Behind the scenes, I have been busy coding and researching and in the coming months you should start to see some of these activities coming into the lime-light.
I still believe in the legacy ideals of what Reddcoin was based and the social currency. We have been left with a coin that is technically stable and PoSV has proven to be a reliable staking algorithm. The blockchain is solid (although having some more staking (full) nodes would be nice) and overall it is behaving exactly the way it should. The blockchain parameters give a coin that has attributes that allow for fast transfers between users and in the 'cointext' of social tipping this is desirable. Coins such as Reddcoin lend themselves far better to these 'micro' transactions.
Small, Fast and Reliable

So what have I been doing lately?

Throughout the year I have shared with you on the forums some of the things I have been doing. This list is by no means exhaustive, consider it more of a recap

Whats in store for 2016??

New Wallet

The biggest news off the bat was mentioned in the latest December Readhead newsletter is that I have just finished a beta of a new wallet version that is based directly of Bitcoin (v0.9). This release was in the Reddcoin repository parly finished, but non-functional as far as i could tell. The principle Reddcoin functionality is now there, along with several features from Bitcoin that i need for my other activities. Currently, this is a closed beta release and far from ready for public offering.
That said, I will be looking for technical adept people to help QA and provide feedback. PM me if your interested.
As for new features, I think it is important to watch what new ideas do come along. Most of them are technical in nature, such as handling block size, or block features like OP_RETURN and CHECKLOCKTIMEVERIFY (CTLV).

Redd ID (or what-ever name it eventually gets)??

This is the feature I will be directing a lot more of my time, effort and energy this year. I have already made a considerable start on the architecture and performed some tests. Of all features, it is the most desirable to deliver. And I will be sharing more details as I progress.

Forum Software Update

I hope to get this back on my focus as the new versions of NodeBB have some cool features. I see this as a tool that could possibly used as a launchpad for Redd ID

Economics

One of the 'complaints' presented of POS coins from other circles, is their 'nothing at stake' and coin hoarding attributes. One of the things I will be looking at this year is how to build and promote an economy and encourage coin movement between users. Afterall isnt this watch we should be doing?
I have lots of ideas to explore on this topic.
In December, I was encouraged to see a drop in the overall percentage of coins held by the Top 100 addresses (51% down from 57%) This could have been due to a number of reasons, but all in all it is good to see this percentage moving lower.

Communication

It may interest you that I regularly discuss topics with like minded developers outside of Reddcoin. I think there is room to collaborate with others on ideas, while also maintaining ones own individuality. In this space, particularly OSS, I like the idea of being able to share different ideas and arrive at solutions. I hope to be able to expand on these communications and also attend some conferences (will need to wait and see).

Milestones

Very close to NYE, we celebrated the arrival of Block 1000000. Although a few other blockchains have gone before us, it is still no less an achievement.

Welcome 2016!!!

submitted by cryptognasher to reddCoin [link] [comments]

[Idea] Secure Your Wallet Using VirtualBox

I have an idea about how to secure your wallet, I would like to know what others think.
Since you really don't want to have your Wallet The one you buy stuff with connected to the web all the time. Would it be safer to run that wallet in VirtualBox disableing the network in that environment? and on your normal OS use a watching wallet.
It only runs when you turn it on, and your not loading that OS with a bunch of junk that can lead to a hacker accessing your Bitcoins.
What is Virtualbox Basically VirtualBox is a program that allows you to run other operating systems within your current running Operating System. https://www.virtualbox.org/ This is a great program for testing software with out making changes to your current system.
submitted by LinuxNut to Bitcoin [link] [comments]

My little experiment - NFC Tag Bitcoins

I have all these NFC tags lying around that I've been wondering what to do with. So I thought, why not use them to create easily concealable 'paper wallets' that can only be accessed with the proper equipment?
This is experimental but works for me. Don't blame me if you lose your life savings because of this. Also, don't transfer large amounts of coins into these things. I'm not sure how reliable they are! If the little chip in the tag decides to die, then you will lose all the bitcoins stored in the tag - unless you have a backup of the private key somewhere.
You will need :
openssl (to encrypt the private key on the tag)
xxd (to convert the encrypted key into a format that you can write on the tag)
a text editor of your choice. I use nano.
These are standard on MacOS X and most Linux distributions.
1) Set up a secure environment. I like to do most of the work in a VirtualBox Linux image which I then delete.
2) Get a wallet keypair at http://www.bitaddress.org The public key (aka address) is where send the money to, it's also used to check the current value of the wallet (on blockchain.info). The Private key is the magic code you need to claim those bitcoins.
It will look something like this
Bitcoin Address: 182vTieDw5DFjwkasXUu4AynMLWQw3h1RT Private Key (Wallet Import Format): 5Htoc4S3eMBYizAUc8mCeZgWr6YoCGB9MEYyLZFyTSaf834NMwr
3) Copy the private key into a text file called privatekeyplain.txt
Private Key (Wallet Import Format): 5Htoc4S3eMBYizAUc8mCeZgWr6YoCGB9MEYyLZFyTSaf834NMwr
4) Now we encrypt the private key using the openssl command. We do this so that if someone scans your NFC coin, they won't be able to get your bitcoins unless they have the password (and knows how you made it). I'm using the des3 cipher, but you're welcome to use whatever you want.
openssl des3 -in ./privatekeyplain.txt -out ./privatekeycrypted 
It will ask you for a password (the letters don't show up when you type).
You will now have an encrypted version of the private key, but this file is binary, so not easy to transfer to the tag.
5) Convert the encrypted file to hexdecimal using xxd. Basically in this step we turn the binary file into text, so that we can write it as plain text to the tag.
xxd ./privatekeycrypt >> keycontents.txt 
This will generate a text file that looks like this
0000000: 5361 6c74 6564 5f5f 0c8d a068 9e3a 8fb8 Salted_...h.:.. 0000010: 8aea a355 59d7 cd19 0414 59bb 25b4 86af ...UY.....Y.%... 0000020: dce7 3683 b7a9 e71f ca09 f2d5 e93e f831 ..6..........>.1 0000030: 8236 0f71 2b3e 14fd c819 9037 5b26 0194 .6.q+>.....7[&.. 0000040: ac37 c60e b171 fb65 a86d 4e9b 3d4c 90b8 .7...q.e.mN.=L.. 0000050: ecb4 5fe8 cc2c a46b 153b a6b6 56b6 fbb4 ....,.k.;..V... 0000060: 03de f19e f225 f503 9428 69ae 8591 38c9 .....%...(i...8.
6) Edit the file and add some useful information to the file, such as the associated public key (address), so that your file looks like
Welcome to this NFC BitCoin Wallet
Public Key 182vTieDw5DFjwkasXUu4AynMLWQw3h1RT
Private Key Below
0000000: 5361 6c74 6564 5f5f 0c8d a068 9e3a 8fb8 Salted_...h.:.. 0000010: 8aea a355 59d7 cd19 0414 59bb 25b4 86af ...UY.....Y.%... 0000020: dce7 3683 b7a9 e71f ca09 f2d5 e93e f831 ..6..........>.1 0000030: 8236 0f71 2b3e 14fd c819 9037 5b26 0194 .6.q+>.....7[&.. 0000040: ac37 c60e b171 fb65 a86d 4e9b 3d4c 90b8 .7...q.e.mN.=L.. 0000050: ecb4 5fe8 cc2c a46b 153b a6b6 56b6 fbb4 ....,.k.;..V... 0000060: 03de f19e f225 f503 9428 69ae 8591 38c9 .....%...(i...8.
7) Transfer the text file to the device you will use to write the NFC tag.
8) Open the app you're going to use to write the NFC tag with - I use TagWriter on Android.
9) Create a new dataset as plain text, and paste the contents of tagcontents.txt into the text box.
10) Write it to your tag - set it as read only.
11) Transfer some coins to the public key (address) of the coin.
12) Profit! (hopefully)
To get the private key out of the tag is essentially the reverse of the above.
1) Scan the tag, and copy the text on the tag.
2) Send the text to your *n?x computer and open it in a text editor.
3) Edit the text so that only the hexadecimal is left
0000000: 5361 6c74 6564 5f5f 0c8d a068 9e3a 8fb8 Salted_...h.:.. 0000010: 8aea a355 59d7 cd19 0414 59bb 25b4 86af ...UY.....Y.%... 0000020: dce7 3683 b7a9 e71f ca09 f2d5 e93e f831 ..6..........>.1 0000030: 8236 0f71 2b3e 14fd c819 9037 5b26 0194 .6.q+>.....7[&.. 0000040: ac37 c60e b171 fb65 a86d 4e9b 3d4c 90b8 .7...q.e.mN.=L.. 0000050: ecb4 5fe8 cc2c a46b 153b a6b6 56b6 fbb4 ....,.k.;..V... 0000060: 03de f19e f225 f503 9428 69ae 8591 38c9 .....%...(i...8.
4) Save the file as privatekeyhex.txt
5) Convert it back to a file that openssl can understand using xxd
xxd -r ./privatekeyhex.txt >> privatekeycrypt 
6) Decrypt it with openssl
openssl des3 -d -in ./privatekeycrypt -out ./privatekeyplain.txt 
Enter your password when requested (letters won't show up as you type).
7) Copy the private key in the privatekeyplain.txt file that has just been created, and import it into your BitCoin Wallet.
8) Profit!
Again : This is a very rough tutorial, but I thought it might help someone.
Edit : Formatting
submitted by flingwing to Bitcoin [link] [comments]

My privacy practices....

I am a bit of a privacy nut. Not too drastic, but I don't like being tracked online. Its nobody's business as far as I'm concerned.
Here's what I did recently:
Bitcoin wallets:
Now you can earn money and browse the webs and stuff anonymously.
I never reveal any personal information when browsing. Its absolute freedom to use tor.
Bonus:
comments, suggestions welcome!
submitted by xintox2 to privacy [link] [comments]

How To Use A Bitcoin Hardware Wallet: The BitBox02 portofel virtual bitcoin.. bitcoin wallet 2017 How To Check Someone Bitcoin Wallet Balance And Bitcoin Transactions  2020 How to Brute Force a Bitcoin Wallet with Hashcat Installation Wallet Atomic BITCOIN

Use BTCV aims to be a more decentralized version of Bitcoin. Vagrant and VirtualBox with Ansible. This section covers build process on macOS (linux instructions). Gitian provides a way to be reasonably certain that the BTCV executables are really built from the exact source on GitHub and have not been tampered with. Don’t Do It: Virtual Machine Bitcoin Wallet for Security. If you were looking for a way to set up a cold wallet for your bitcoin stash without having to invest in a hardware wallet or a spare device for tiered crypto storage management, here’s the bad news for you. The image above shows VirtualBox’s main window without defined virtual devices. Creating a Windows XP Virtual PC under Debian 10 Buster To get started setting up a virtual OS from its ISO image click on the icon “NEW”, the following example shows a Windows XP installation from an ISO installable image, if you prefer to install a Linux distribution you can read Installing Debian 10 on The host OS has full control over the virtual machines. So you gain no security, if the host OS is not secure. A key logger on the host OS can also log the key strokes that end up in the wallet app running in a VM, some malware scanning the RAM for occurrences of a random string starting with 5, K or L (private keys) can do so just as easily when the wallet runs on the host, as it can when it Oracle’s free Virtualization solution, VirtualBox is a very popular Virtualization platform. People all over the world use VirtualBox. You can use VirtualBox to virtualize Linux, BSD, Windows, OSX, and many other types of operating systems. VirtualBox runs on Windows, Mac, Linux. So switching between different environment is quite easy.

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How To Use A Bitcoin Hardware Wallet: The BitBox02

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