I am setting up a server and testing NIS from a client computer. The server is Redhat Enterprise and the client computer is Ubuntu.
I have a local user (Mark) and an NIS user (Tim) setup on the client computer. When the client computer boots up, I can select Mark or Tim to login to the client computer. Mark logs in locally without issues, but Tim looks like it is going to and then takes me back to the login screen. If I enter the wrong password, then it tells me that so it's not an authentication issue.
If I login as Mark, open a Terminal and switch user to Tim, then Tim can login.
What is causing the Tim account to only be able to login via the Terminal?