Pwede naman tlga paps.. Place holder lng po ung [host_port].. For Ex: kahit 80 (dropbear) or 550 (dropbear) connected parin po sa dropbear port..
Dalawang gate lng po ung 80, 550 (dropbear).. pero iisa lng ng lalabasan.. kunwari puno ung gate 1 ehdi dun kasa gate 2..
Pero in reality may mga bansag tlga kada port number.. Ex: 22 SSH and 443 SSL and 8080 HTTP.. dipende nalng kase sa gumawa ng server yan kung gagawin niyang port 443 and 22 etc.. SSH kahit iba ibahin niya pa, custom port sa kanyang trip nalng yun..