This guide will assist you in compiling a headless client (the daemon) in Ubuntu Linux. This is a necessary step if you wish to set up a node of your altcoin. It is assumed that you are starting on a fresh Ubuntu (14.04 x64) installation. If you require a VPS for hosting, I highly recommended Digital Ocean.
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Set up a swapfile if your system has less than 1.5GB of memory:
fallocate -l 2G /swapfile
chown root:root /swapfile
chmod 0600 /swapfile
sudo bash -c "echo 'vm.swappiness = 10' >> /etc/sysctl.conf"
mkswap /swapfile
swapon /swapfile
If fallocate doesn’t work, you can use dd if=/dev/zero of=/swapfile bs=1024 count=1024288 instead.
Initialize swapfile automatically on boot
echo '/swapfile none swap sw 0 0' >> /etc/fstab
Install all required dependencies:
apt-get update && apt-get upgrade
apt-get install nano ntp unzip git build-essential libssl-dev libdb-dev libdb++-dev libboost-all-dev libqrencode-dev aptitude && aptitude install miniupnpc libminiupnpc-dev
Pull the source code from github, or upload it yourself:
git clone https://github.com/YOURCOIN
If your coin uses leveldb, compile leveldb:
cd /YOURCOIN/src/leveldb
chmod +x build_detect_platform
make clean
make libleveldb.a libmemenv.a
Return to source directory, and compile the daemon:
cd /YOURCOIN/src
make -f makefile.unix
Strip the file to make it smaller, then relocate it:
strip YOURCOINd
cp YOURCOINd /usr/bin
Now run the daemon:
YOURCOINd
It will return an error, telling you to set up config file in a directory. Now we’ll set up the config file. Note that this is case sensitive.
nano ~/.YOURCOIN/YOURCOIN.conf
Add the following, save and exit:
daemon=1
server=1
rpcuser=(username)
rpcpassword=(strong password)
Run YOURCOINd once more and if you did everything correctly, your daemon is now online! Type YOURCOINd help for a full list of commands available.