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→Common SSH Problems
Remember that these machines are multi-user systems. Use the <code>w</code> or <code>who</code> commands to see who else is using them; you can also try using the <code>write</code> command to communicate with another user if required.
== Passwords ==
Your password on each of these systems has been set to a random string (different on each host). You can find out the original random password by viewing the file <code>~/password.txt</code> and you can change the password with the <code>passwd</code> command. Your password is used for sudo access (see the next section).
In order to use <code>sudo</code>, you will need to know your password. An initial random password is provided in the file <code>~/password.txt</code> (note that your password will be different on each server). Feel free to change this with the <code>passwd</code> command -- not by editing the file, which is provided only for your information!
== SSH Access from Other Client Systems ==
If you wish to access the servers from additional computers, you can append the SSH public keys from those computers to the <code>~/.ssh/authorized_keys</code> file. Alternately, you can copy the private key from one client system to another (e.g., your laptop to your desktop).
== OS Versions ==
The current servers are both running Fedora 35 and will be updated from time to time. The two machines may not be updated at the same time, so the versions of software may vary slightly.The kernel versions may also vary between the systems because of kernel hardware support.
== Backup Your Accounts ==
# If your SSH public key is not named <code>~/.ssh/id_rsa</code>, your SSH client may not automatically find it. You can specify the identity (private key) file using the <code>-i</code> argument to the SSH command.}}
== Disconnect/Reconnect Ability ==
The [[Screen Tutorial|screen]] utility provides disconnect/reconnect capability, which is very useful for unstable network connections, long interactive operations, and changing your work location.
Other programs such as tmux provide similar capability.
For graphical disconnect/reconnect capability, consider using VNC.