useradd --home /opt/mathjax --shell /bin/nologin mathjax
install -d -m 755 -o  mathjax -g  mathjax /opt/mathjax
sudo -u mathjax touch /opt/mathjax/.bashrc
 
 
cd /opt/mathjax
sudo -u  mathjax npm install https://github.com/mathjax/MathJax-node/archive/0.5.2.tar.gz
sudo -u  mathjax npm install https://github.com/tiarno/mathjax-server/tarball/master
cd node_modules
ln -s mathjax-node MathJax-node
 
cd /opt/mathjax/node_modules/mathjax-node/batik
sudo -u  mathjax wget https://downloads.apache.org/xmlgraphics/batik/source/batik-src-1.18.zip
sudo -u  mathjax unzip batik-bin-1.8.zip
 
ln -s batik-1.8/batik-rasterizer-1.8.jar batik-rasterizer.jar
ln -s batik-1.8/lib lib
 
sudo -u  mathjax touch /opt/mathjax/mathjax.js
echo "var server = require('./node_modules/mathjax-server/index.js'); server.start(8003);" >> mathjax.js
 
cd /opt/mathjax
 
cat mathjax.js
#Output must be: var server = require('./node_modules/mathjax-server/index.js'); server.start(8003);
 
sudo -u mathjax node mathjax.js

whereis node
node: /usr/bin/node
nano /etc/systemd/system/ilmathjax.service
 
#Maybe you have to adjust the node path

[Unit]
Description=ILIAS-Mathjaxserver nodebased
After=network.target
 
[Service]
ExecStart=/usr/bin/node /opt/mathjax/mathjax.js
User=mathjax 
Restart=on-failure
WorkingDirectory=/opt/mathjax/
StandardOutput=null
StandardError=journal
SyslogIdentifier=ilmathjax2
 
[Install]
WantedBy=multi-user.target

systemctl daemon-reload
systemctl enable ilmathjax
systemctl start ilmathjax
systemctl status ilmathjax
q