And just in case you're in a network that does block access to port 22, use sslh to listen to port 443 and map all ssh traffic to port 22 (and all https traffic

And just in case you're in a network that does block access to port 22, use sslh to listen to port 443 and map all ssh traffic to port 22 (and all https traffic to httpd, and all openvpn traffic to 1194). One port (443) to rule them all!