HowTo: Restart SSH Service under Linux / UNIX

How do I restart SSH service under Linux or UNIX operating systems?

The command to restart ssh are as follows (you must login as root user):

CentOS / RHEL / Fedora / Redhat Linux Restart SSH

# /etc/init.d/sshd restart
OR
# service sshd restart

Debian / Ubuntu Linux Restart SSH

# /etc/init.d/ssh restart
OR
# service ssh restart

FreeBSD Restart SSH

# /etc/rc.d/sshd restart

UNIX Restart SSH

# kill -HUP `cat /var/run/sshd.pid`
Please note that the location of /var/run/sshd.pid may change. So just search a bit through /var/run/ directory.