Unable to find plugins in list of available plugins in jenkins

Question

I have installed Jenkins by deploying its WAR file to Tomcat. On typing

http://localhost:8080/jenkins

In browser

Answer 1

You don't have internet connection on Jenkins Machine.please configure Internet or installed plugin in offline mode.

Go to Jenkins -Plugin Manager-Upload Plugin

Answer 2

At the plugins section of Jenkins open the "Advanced Settings" tab and paste the following URL into the Update Server URL field (at the bottom): https://updates.jenkins.io/update-center.json

Answer 3

I hate to admit this but it might save someone else some time...I could not find a particular plugin when searching the available list. I learned the hard way that plugins which are already installed to Jenkins don't show in the "available" list...there it was on the "installed" list, already installed, I just didn't realize it. Now I'll check "installed" before searching "available".