I want to set up ufw on my server, but something wrong here. Even when I trying to block 22 port ssh still working and nothing changing. I have ufw enabled, but nothing works.
I want to set up ufw on my server, but something wrong here. Even when I trying to block 22 port ssh still working and nothing changing. I have ufw enabled, but nothing works.
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.
This! You have it set to “Allow”, so it’s allowing it. You need to set it to Deny.
I understand it
Is this a troll post or are you really struggling?
really struggling
sudo ufw delete allow 22
Is this a public facing server? If it isn’t the online port port scanners will not work as they are scanning your public IP. Also they are unreliable in general. Best tool for the job is nmap. It has a ton of config options so you will need to do some reading. (Definitely worth the learn)
, no, I want to open, for example this port, but:
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?