AGENT JENKINS
NOT CONNECT TO
SERVER JENKINS

Keeping this here: troubleshooting when a Jenkins agent generates a key but won’t connect.

How to solve?

After you generate key from agent jenkins, then you add key to server but your agent jenkins still can't connected, try this:

Execute this from agent jenkins.

ssh-keyscan -H 10.131.17.11 >> ~/.ssh/known_hosts

this will add key to .ssh/known_hosts