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Thread: Ports Blocked by ISP

  1. #1

    Ports Blocked by ISP

    Is there any easy way of knowing what ports are being blocked by my ISP, without calling them up and asking?

  2. #2

    Re:Ports Blocked by ISP

    By doing a portscan from an outside source(, etc.) you should be able to tell which ports are blocked. They should come up as "Stealth". You might also be able to use nessus from your linux box to scan the netblock your IP is on.

  3. #3
    Good Guru
    Compunuts's Avatar
    Join Date
    May 2001

    Re:Ports Blocked by ISP

    Or you could nmap yourself with your IP.

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