HOW TO Fix sshd error : Bind to port 22 on 0.0.0.0 failed: Address already in use.
Error in log file
Jul 3 10:28:09 tiger sshd[5438]: error: Bind to port 22 on 0.0.0.0 failed: Address already in use.
Solve Method:
in /etc/ssh/sshd_config
uncomment
#ListenAddress ::
## uncomment the next line to use only ipv4
ListenAddress 0.0.0.0