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HowToSetupElectraServer.md

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Instructions for running on an Ubuntu 16.04 server:

Recommended 2GB RAM. Install a swap file if you don't have enough memory. If you find your daemon dies, you might be running out of memory.

Install electrad and run it with -txindex just like you would with an explorer.

Install necessary packages

sudo apt-get -y install build-essential python-dev python-setuptools python-pip python-smbus
sudo apt-get -y install libncursesw5-dev libgdbm-dev libc6-dev
sudo apt-get -y install zlib1g-dev libsqlite3-dev tk-dev
sudo apt-get -y install libssl-dev openssl
sudo apt-get -y install libffi-dev
sudo apt-get -y install zip
sudo ufw allow 50001/tcp # Needed to allow incoming connections
sudo ufw allow 50002/tcp # Needed to allow incoming connections

Install Python 3.7

`mkdir /tmp/Python37
cd /tmp/Python37
wget https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
tar xvf Python-3.7.0.tar.xz
cd /tmp/Python37/Python-3.7.0
./configure
sudo make altinstall`

Setup your local virtualenv for Python

`sudo pip install virtualenv
cd ~
virtualenv -p /usr/local/bin/python3.7 ve 
echo "source ve/bin/activate" >> ~/.bashrc
. ~/.bashrc
python --version # Should show 3.7
pip install plyvel pylru aiorpcx aiohttp`

Install NIST5

`cd ~/ve/lib/python3.7
git clone https://github.com/Jenova7/nist5_hash
cd nist5_hash
python setup.py install`

Install ElectrumX

`git clone https://github.com/kyuupichan/electrumx
cd electrumx/
python setup.py install
mkdir -p ~/.electrumx/eca
# Set a password for x (pass:x )
`openssl genrsa -des3 -passout pass:x -out ~/server.pass.key 2048
openssl rsa -passin pass:x -in ~/server.pass.key -out ~/.electrumx/server.key
rm ~/server.pass.key`
# Don’t set a password in the next step !
`openssl req -new -key ~/.electrumx/server.key -out ~/.electrumx/server.csr
openssl x509 -req -days 1825 -in ~/.electrumx/server.csr -signkey ~/.electrumx/server.key -out ~/.electrumx/server.crt`

Edit ~/electrumx/start_electra to update the variables to reflect your local environment

`nano ~/electrumx/start_electra`

Run ElectrumX server and watch the logs

`~/electrumx/start_electra &

tail -f ~/.electrumx/electrumx.log`

It'll take a while to connect and build its local database, so be patient. After the syncing is finished, you can connect and test it with:

(echo '{ "id": 0, "method": "server.version", "params": [ "2.7.11", "1.3" ] }'; sleep 3) | ncat --ssl localhost 50002

You should see a response like:

{"jsonrpc": "2.0", "result": ["ElectrumX 1.8.5", "1.3"], "id": 0}