[hyp37$]

Assalamualaikum...
bagaimana ya cara menutup (closing) port yang tidak berguna..

seperti ini contoh port di localhost saya, dgn perintah "nmap -sS 127.0.0.1" :

Discovered open port 80/tcp on 127.0.0.1
Discovered open port 143/tcp on 127.0.0.1
Discovered open port 111/tcp on 127.0.0.1
Discovered open port 1/tcp on 127.0.0.1
Discovered open port 32773/tcp on 127.0.0.1
Discovered open port 32774/tcp on 127.0.0.1
Discovered open port 2000/tcp on 127.0.0.1
Discovered open port 1524/tcp on 127.0.0.1
Discovered open port 32772/tcp on 127.0.0.1
Discovered open port 32771/tcp on 127.0.0.1
Discovered open port 12345/tcp on 127.0.0.1
Discovered open port 1080/tcp on 127.0.0.1
Discovered open port 119/tcp on 127.0.0.1
Discovered open port 6667/tcp on 127.0.0.1
Discovered open port 79/tcp on 127.0.0.1
Discovered open port 31337/tcp on 127.0.0.1

Nah, saya bro mau menutup port "79" misalkan.. bagaimana ?
Dan juga kalau ada yg punya list port yg berpotensi bisa terexploitasi..