SHELL

ufw add rule

# from anywhere
ufw allow 22
# specific client addr
ufw allow from 15.15.15.0/24 to any port 22

ufw add rule with comment

ufw rule comment 'my cool comment here'

# Example
ufw allow from 123.456.78 to any port 22 comment 'My Colleague'

add ufw rule from

sudo ufw allow from 203.0.113.4 to any port 22