How to Reset Jenkins Admin Password

To reset the jenkins admin password,You can simply disable the security in the config.xml file.

• If your jenkins is running on the Linux OS, edit the below file.

vim /var/lib/jenkins/config.xml

Note: you can use you favourite text editor in place Vim

• Search for the word <useSecurity>true</useSecurity>

and change the word true to false.

       Save The file

• Restart the Jenkins server.

There are few ways to restart your Jenkins server

To restart Jenkins manually,

(jenkins_url)/safeRestart- Allows all running jobs to complete. New jobs will remain in the queue to run after the restart is complete

(jenkins_url)/restart- Forces a restart without waiting for builds to complete.

$ /etc/init.d/jenkins restart

$ service jenkins restart

• Now go to the Jenkins portal again and Jenkins will not ask any credentials this time. You navigate to "Manage Jenkins" to set the administrator password again.

•  Enable the security again by changing settings to <useSecurity>true</useSecurity> and restart the Jenkins again.

DONE