Here are couple ways to change your sshd default configuration settings and
make / Secure ssh daemon more secure / restrictive and thus protect your
server from unwanted intruders. NOTE: Everytime you make changes in the sshd configuration file you need to
restart sshd. By doing so, your current connections will not be closed !
Make sure that you have a separate terminal open with root logged-in in
case you do some misconfiguration. This way you will not lock yourself out
of your own server. 1. Change a default port number to secure...