Solution provided
1. Start a remote login tool, such as PuTTY.
2. Use the remote login tool to log in to the OMU operating system using SSH as the cgpexpert user. The default password of the cgpexpert user is mt2013@HW. Use the actual passwords onsite.
3. If you want to switch to another user, run the su - User name command, such as su - root, the default password of the root user is cnp200@HW. When you switch from the root user to another user, you do not need to enter the password of the corresponding user. When you switch between common users, you must enter the password of the corresponding user.

