Port 80 blocked by ISP

Posted November 12, 2019 2.5k views

how can i use Nginx if ISP filters Port 80. need port 80 open to enable SSL

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Hello, @plettp23

Can you please let us know if you’re currently experiencing any issues? It is very unlikely that your ISP will block port 80 because this will cause serious issues for you. However if you have a official quote from your internet provider feel free to share it with us.


  • Ports that are filtered or in my case blocked by ISP
    the only port that i can portforward is port 22 for SSH
    all other ports do not work portforwarding on home hub 3000
    my frind next door has home hub 1000 on the older router it still works.

    25 TCP SMTP Both* SMTP Relays
    80 TCP HTTP Inbound Web servers, worms
    135 UDP NetBIOS Both Net Send Spam / Pop-ups, Worms
    136-139 UDP, TCP NetBIOS Both Worms, Network Neighbourhood
    445 TCP MS-DS / NetBIOS Both Worms, Network Neighbourhood
    1433 TCP MS-SQL Inbound Worms, Trojans
    1434 UDP MS-SQL Inbound Worms, SQLslammer
    1900 UDP MS-DS / NetBIOS Both Worms, Network Neighbourhood

    • If the ports are indeed blocked by your ISP, I’m afraid there is not much you can do, but to contact them and ask if they can open them for you. I hope they can come up with a solution for you.