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Some notes about ssh

Install the sshd server:

sudo apt-get install openssh-server

Server start/stop/status/restart:

sudo service ssh {start|stop|status|restart}

Server config file:

/etc/ssh/sshd_config    # make a backup first

Here you can change the port (which is a good idea), disable PermitRootLogin, etc. You can also add these two lines to the end:

UseDNS no

Where USERNAME is the username of the user who can log in. Only (s)he can log in, nobody else.

Log in to a non-standard port:

ssh username@host -p PORT
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