I know how to allow only a specific IP address into a port, but I can't find the syntax to do this by service. I kinda like having the services so I can group and read my rules more easily.
How do I allow an IP address to a app like ssh, or in this case mongodb?
I tried the following:
sudo ufw allow Mongodb from 50.60.70.21
sudo ufw allow from 50.60.70.21 to Mongodb
I read through the man page, bit it doesn't seem to address apps much more than anywhere else on the Internet.