Firewall settings/Whitelist

[amcgeveran]

I'm trying to figure out how to use this on a server where I don't allow many connections. It looks like I need at least one outbound UDP port open, and it doesn't matter which, and if I block all other TCP and UDP connections (inbound and outbound) it'll still work.

But whitelists are better than blacklists, I think; does anybody use a whitelist with this, and if so, what does it look like?

The LastPass app documentation has a whitelist section but the CLI doesn't seem to have any whitelisting documentation.