9

Bitcoin doesn't use HTTP for its communications - it has its own specific protocol that runs directly on top of TCP. So an HTTP proxy like squid won't help. If you aren't able to make outgoing TCP connections through your firewall (mainly to destination port 8333) then you'll have to contact your corporate IT people about adding appropriate firewall ...


8

You should not use a torrent to download the blockchain. There is no general purpose to using a torrent, as using it makes synchronization slower because validation (which is the slow part) cannot proceed concurrently with download. Because there is no purpose to using a torrent, I wouldn't trust that any particular torrent wasn't made maliciously and didn'...


7

If you shut down your PC and then restart, the Bitcoin sync will pick up where it left off. The latest transaction your Bitcoin currently knows about is 7 years old, but it won't take 7 years to catch up. It should be all caught up in a matter of days. You will need a lot of storage for Bitcoin Qt. The current size of the blockchain is over 80 GB, and ...


6

.exe files are for windows only. Linux systems do not use the same file extension or file type as windows. I assume you just want to create a Linux binary that can be used on all systems without installing all dependencies. To do that, you can use Bitcoin Core's depends system. Instructions are here: https://github.com/bitcoin/bitcoin/tree/master/depends. ...


6

Since the build system has moved to Autotools, the method for building Bitcoin-Qt is a bit different. git clone https://github.com/bitcoin/bitcoin.git bitcoin cd bitcoin git checkout v0.8.5 ./autogen.sh ./configure --with-qt make -j8


6

Depending on your OS you can start a 2nd bitcoin-qt acting on a non-mainnet with ./bitcoin-qt -testnet or ./bitcoin-qt -regtest (from a shell). You can also define a custom datadir and place a bitcoin.conf there (use bitcoin-qt -datadir=<path>). On OSX/Mac you would need to use Terminal and run something like /Applications/Bitcoin-Qt.app/Contents/...


5

It's open source software by many independently cooperating developers. The name is now Bitcoin Core, where bitcoin-qt is the GUI application. Discussions happen on many forums and media, so it depends a little on what kind of message you want to send them. "Official" website: https://bitcoincore.org/ and http://bitcoin.org All others I mention here are ...


5

This happens with many Ubuntu Apps. The simplest solution is to tap Alt any type the name of the menu item you wish to find. Alternatively, hit Ctrl-Alt-F2, log in, type DISPLAY=:0.0 unity --replace hit Enter, and then do Ctrl-Alt-F7. The menu bars and the windowing system will reload.


3

Since this is the first result that pops up on google when searching "bitcoin windows depends build" and the user asked how to build the .exe (but was actually looking for static build instructions on ubuntu) the correct instructions would be to use cross compilation with the depends system as specified in the documentation here: https://github.com/bitcoin/...


3

I recommend reading about the Bitcoin Data Directory. You should also take a look at this answer: How do I specify in which directory Bitcoin blocks and other data should be stored? Basically, all your Bitcoin data is stored in ~/.bitcoin on Linux. Not only can you specify a different location for this directory using -datadir=/some/other/directory, but ...


3

If your contact request is of a technical nature, you can also use the github issue tracker and create a ticket. Keep in mind the guidelines of reporting issues, interesting part quoted: Firstly in terms of structure, there is no particular concept of “Core developers” in the sense of privileged people. Open source often naturally revolves around ...


3

Bitcoin-Qt stores its own modifiable settings outside of bitcoin.conf (which is intended to only be read). The location and format of that file is platform dependent, but on Linux it is ~/.config/Bitcoin/Bitcoin-Qt.conf.


3

Yes, it is completely safe to exclude the blocks directory from your backup process. In the event that you lose all your files and need to restore from backup, Bitcoin will download all missing blocks. This may take some time, but there is no information in that directory that is unique to you.


2

This solved it on Ubuntu: sudo apt-get remove appmenu-qt5 and the menu was visible when bitcoin-qt (bitcoin-0.13.0rc1, compiled from source) restarted.


2

In general, mempools are not guaranteed to be the same node-to-node. The behavior of the reference client is that once mempools reach 300MB, the lowest fee tx's are thrown away. It's possible your node has reached this limit (either because it's 300MB or because your default is much lower) or simply because you're connected to nodes that have the same ...


2

This worked for me: addnode 185.28.76.179:18333 This "well connected testnet node" was suggested to me here.


2

An alternative solution would be to build a tarball archive like the one you can download from the Bitcoin Core website. To do that you have to follow the release process, as explained in: https://github.com/bitcoin/bitcoin/blob/master/doc/release-process.md The process actually consists in creating a Gitian build: https://github.com/bitcoin-core/docs/blob/...


2

Quoting https://en.bitcoin.it/wiki/Data_directory#Mac : Mac By default Bitcoin will put its data here: ~/Library/Application Support/Bitcoin/ You can access that folder by opening a new Finder window --> then by going to "Go" --> "Go to Folder..." (or pressing command + shift + G), and then pasting the above path into the window that ...


2

Ok, I think I got it. Here is a short guide based on this bitcoin wiki article. Notes: This does not concern backing up your keys. If you lost your wallet, or your keys, and you made the backup discussed here beforehand, this backup will not help you recover your lost coins. This will only save you some bandwidth/time/storage. Don't load a database to your ...


2

The particular desktop environment does not have a direct impact as long as you have the necessary libraries for running Qt applications. On Debian (or Debian-Based distributions, such as Ubuntu) the following command should install the dependencies necessary for the UI: sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-...


2

Bitcoin accounts are not linked to names, per se. There is not really a way where you can sign up for a bitcoin account under so-and-so's name, unless you go through an exchange such as coinbase. There are basically two scenarios here: If you are receiving messages/emails telling you to claim BTC, you are likely being scammed. Scammers send such messages ...


2

There is no general purpose to using a torrent? Dude have you ever tried to download the blockchain it takes ages, at first it goes fast for 2 days then it slows down to 0,03% speed per hours (mean weeks/months to complete) its innacceptable that this takes so long. Nobody in the right mind will wait 1,5-2 Months to download it. I wanted to support the ...


1

Try running make clean. This error throws when you installed a different protobuf version.


1

It might be you need to add some lines in the bitcoin.conf file on the Raspberry Pi. This was taken from the github repo example of the bitcoin.conf file ############################################################## ## Quick Primer on addnode vs connect ## ## Let's say for instance you use addnode=4.2.2.4 ## ## addnode ...


1

its sounds like a false positive,the same was happened on Bitcoin core https://bitcointalk.org/index.php?topic=1694796.0 to be sure you have to options 1 check their source for backdor etc,2 or raise an issue on GitHub


1

There are two ways to create signatures for transactions. One uses a High S Value and the other a Low S Value. Since the signature can be malleated by third parties (also see transaction-malleability) to switch the High S to Low S and vice versa, and that changes the transaction id, High S Values have been deprecated for several versions. You could either ...


1

First of all if you have not done it yet, I would encourage you to make a backup of the wallet.dat file (e.g. copy it a usb stick). One solution would be to let bitcoin-qt show you the private key for the address for which you received bitcoins back in 2011. Then you could import (actually "sweep") them with Electrum. See the following help: https://en....


1

Looking at the Makefile start: $(BITCOIND) $(B1) -daemon $(BITCOIND) $(B2) -daemon start-gui: $(BITCOINGUI) $(B1) & $(BITCOINGUI) $(B2) & so probably make start-gui will work for you


1

Use the -testnet option. This will run the daemon in testnet.


1

A blkindex.dat error means that the block index has been corrupted or can't be opened. However, the block index is not part of the wallet, and can be deleted without removing the funds in your wallet. With that in mind, try this: Open %APPDATA% in file explorer. Do this by pressing Windows + R, then typing %APPDATA%. Open Roaming\Bitcoin. Make a new folder ...


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