jenkins   6799 33.4 15.7 3078760 296780 ?      Ssl  09:15   0:12 /etc/alternatives/java -Dcom.sun.akuma.Daemon=daemonized -Djava.awt.headless=true -DJENKINS_HOME=/var/lib/jenkins -jar /usr/lib/jenkins/jenkins.war --logfile=/var/log/jenkins/jenkins.log --webroot=/var/cache/jenkins/war --daemon --httpPort=5555 --httpListenAddress=0.0.0.0 --debug=5 --handlerCountMax=100 --handlerCountMaxIdle=20 0.0.0.0
root      6909  0.0  0.0 112680   740 pts/0    S<+  09:15   0:00 grep --color=auto jenkins

sudo lsof -i -P -n | grep LISTEN

java       6799     jenkins  165u  IPv6 9250567      0t0  TCP *:5555 (LISTEN)