How to do it...

Let's change a port on which Jenkins runs:

1. If you run Jenkins using the command line, then you can execute a command such as java -jar -httpPort=9999 jenkins.war to change the existing port from 8080 to 9999.
2. Another way to change the port while Jenkins is installed using the Windows package is as follows:

• • Go to the Program Files/Jenkins directory where you installed Jenkins
  • Open the Jenkins.xml in the editor
  • Find "--httpPort=8080" and replace the port 8080 with the new port number