Hi Jesse, This normally happens when your machine is behind a firewall. Nmap assumes that if a request it's not responsed (when you try to connect to an unreacheable port, the machine sends to you an ICMP to notice you about it) it's because a firewall filter the request... so in state appears Filtered Regards, Agustin Jesse yep wrote:

If all my ports are closed and someone does an 'nmap -sU -sT' scan on me and shows unfiltered ports. Could it be true, or is it just a false output? I heard somewhere that doing both of those options maybe give you false output, so im asking here ;)

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