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Isa 2006 is blocking microsoft sites and all the antivirus sites

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  • Isa 2006 is blocking microsoft sites and all the antivirus sites

    I have a small problem in my isa 2006 ,i have a member server in my network on which i have installed isa 2006 for internet proxy , well all my clients can open most of the sites through isa but they cant open all the microsoft sites , most importantly the microsoft update sites and antivirus sites like mccafe , norton and symantec etc , neither the isa 2006 can open these sites from its own machine ,is there anybody who can help me in this stupid problem plz , it will be greatly appreciated thanks

  • #2
    Re: Isa 2006 is blocking microsoft sites and all the antivirus sites

    Re-install the Flux Capacitor and that will fix it.

    Seriously though, can you give us more info. How are the clients configured (Web Proxy, SecureNAT, Firewall Client), what's the error message, is this a domain environment etc?
    BSc, MCSA: Server 2008, MCSE, MCSA: Messaging, MCTS
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    • #3
      Re: Isa 2006 is blocking microsoft sites and all the antivirus sites

      Sounds like the Conficker virus to me.

      http://support.microsoft.com/kb/962007

      http://en.wikipedia.org/wiki/Conficker

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      • #4
        Re: Isa 2006 is blocking microsoft sites and all the antivirus sites

        my clients are mostly firewall clients, here is error message:


        Technical Information (for support personnel)
        Error Code 11001: Host not found
        Background: This error indicates that the gateway could not find the IP address of the website you are trying to access. This is usually due to a DNS-related error.
        Date: 7/25/2009 3:51:10 AM [GMT]
        Server: isamills2
        Source: DNS error

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