Xvfb :99 -screen 0 1920x1080x8 +extension RANDR &> /var/log/xvfb.log &
wget http://selenium-release.storage.googleapis.com/2.44/selenium-server-standalone-2.44.0.jar
mkdir /var/lib/selenium
mv selenium-server-standalone-2.44.0.jar /var/lib/selenium/
DISPLAY=:99 java -jar /var/lib/selenium/selenium-server-standalone-2.44.0.jar