I have a fresh install of Jenkins as a service on my Linux machine. When Jenkins installs, it creates a 'jenkins' user, but I can't seem to find the default password for it anywhere.

I'm trying to secure my system, so if the default password is '123' or something insecure that I just haven't thought of yet, that's a problem.

Thanks!

I don't believe it has any password. You should be able to do:

sudo passwd jenkins

This will prompt for you to set a password.

Alternatively you could create the jenkins user prior to installing, and it would leverage that one.