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  1. #1
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    "Shields Up" testing service tells me I have some open ports and because of that the computer security is compromised. My question is "how can I tell if it's my computer, or the VoIP system? (Admittedly, I have no idea how the VoIP security system works.)

    Here's my configuration: I have (Qwest internet as an ISP) the modem (has a router built in -Q1000) supplying the VoIP hardware (T-Moble non-wireless VoIP) and that feeds a Microsoft router. My computer is then ported through the Microsoft router. Then, on top of that, I have the Comodo firewall software with Microsoft "Security Essentials". Everything is hard wired and not connected wireless.

    Here is the report from Shields Up:

    Results from scan of ports: 0-1055

    Ports found to be OPEN were: 21, 22, 23, 53, 443

    The port found to be STEALTH was: 80

    Other than what is listed above, all ports are CLOSED.

  2. #2
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    The router should not have any ports open ever, unless you have set it up with them open.
    Do you host an FTP server - port 21?
    Do you host an https web site - port 443?
    The other ports should not be open, especially 53 - DNS.

    cheers, Paul

  3. #3
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    Quote Originally Posted by P T View Post
    The router should not have any ports open ever, unless you have set it up with them open.
    Do you host an FTP server - port 21?
    Do you host an https web site - port 443?
    The other ports should not be open, especially 53 - DNS.

    cheers, Paul
    As far as I know, and knowledge of ports are a very weak area with me, I host nothing. How can I close them and what happens to "normal" running when I do? Finally, how does the VoIP system affect things? Thanks a lot for coming to my rescue!

    Terry

  4. #4
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    You seem to have a rather complex modem/firewall set up so it's a little hard to know what to do to close those ports, or if you need to close them.
    VoIP seems to use ports 5004 & 5060 which you can test on the GRC site.

    I would try your ISPs help pages for more info.

    cheers, Paul

  5. #5
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    Quote Originally Posted by P T View Post
    You seem to have a rather complex modem/firewall set up so it's a little hard to know what to do to close those ports, or if you need to close them.
    VoIP seems to use ports 5004 & 5060 which you can test on the GRC site.

    I would try your ISPs help pages for more info.

    cheers, Paul

    That I will do. Thanks for the lead on where to go.

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