Many other configuration directives for sshd are available for changing the server
application's behavior to fit your needs. Be advised, however, if your only method
of access to a server is ssh, and you make a mistake in configuring sshd via the
/etc/ssh/sshd_config file, you may find you are locked out of the server upon restarting
it, or that the sshd server refuses to start due to an incorrect configuration directive, so be
extra careful when editing this file on a remote server.