UFW Settings on Linux server?

Personally, I disable ssh via firewall until I need it for added security. I only use it for doing simplehelp or server upgrades anyway.

Simplehelp defaults to udp for clients, but you can change that in the config file so that it uses tcp. That way if you don’t want to open up udp you don’t have too. You will need to make sure your clients are switched over first though.