How to open access to ssh from any IP?

Question

linux

How to configure ssh on Debian so that anyone can connect to the server from any ip (not just local)?

Answer 1

Without NAT, the entire Internet is local, that is, you don’t need to do anything else, except to open a port for everyone through iptables or whatever your firewall is. With NAT - you need to do port forwarding on the router (any tcp) to the local address port 22 (or where you have ssh), otherwise you won't open it.

Answer 2

edit /etc/ssh/sshd_config
although, as far as I remember, sshd does not distinguish the user by ip.
can put ListenAddress 0.0.0.0
to see firewall rules??