First, to connect to the edlab, from a terminal, enter "ssh firstname.lastname@example.org"
If this is the first time connecting to the edlab you will likely be asked to trust the host key of the edlab server. Answer "yes" to these prompts.
Upon a successful connection you will be notified that your password has expired and that you need to change it.
You will first be prompted for your Current Password. This is the same password you just used to log on with. You need to re-enter it.
If something other than the current/temporary password is entered, you will get a message stating, "Password change failed. Server message: Old password not accepted." and will need to start over.
You will then be prompted to enter a new password, and then confirm it again. You may be disconnected after changing your password. If so, wait a couple minutes for the server caches to clear before attempting to log back in with your new password.