Nomor port yang dapat digunakan pada linux adalah 1-65535. Dalam contoh digunakan port 22222.
# vim /etc/ssh/sshd_config [-- SNIP --] # Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we listen for Port 22222 # Use these options to restrict which interfaces/protocols sshd will bind to #ListenAddress :: #ListenAddress 0.0.0.0 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes [-- SNIP --] ## Reload kembali service ssh # service ssh reload ## lihat daftar process yang listen pada port tertentu # netstat -ntap tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 1994/nginx.conf tcp 0 0 0.0.0.0:22222 0.0.0.0:* LISTEN 2026/sshd tcp 0 240 106.187.94.18:22 114.79.61.39:38656 ESTABLISHED 2035/0 tcp6 0 0 :::22222 :::* LISTEN 2026/sshdJangan lupa untuk mengubah konfigurasi iptables jika port ssh baru tersebut diblok.
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