Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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So you want to block port 22? Yet the rule you added allows access, or am I misunderstanding?
You probably need to be DENY instead of ALLOW if that's what you're wanting to accomplish.
That's a website tool checking? It's almost certainly only going to check TCP, since most of them don't do anything with UDP because it's... more complicated.
You may need to find an alternate way to do that, something like iperf or netcat (nc -u ip port)
nmap works great for this
traceroute might also be usable vith the -p switch I guess?