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  • deny yahoo messenger with isa 2004 stard

    os: winserver 2003

    I used signature but don't ok .

    " search in : request header
    http headers : host
    signature : msg.yahoo.com "

  • #2
    Re: deny yahoo messenger with isa 2004 stard

    hi,

    if your clients are connecting only through Proxy then you can block Yahoo Messanger by editing the Rule Signature but they are using FIrewall Client, you will be tired.

    What you have to do is create a GPO to block the .exe Hash of the Yahoo messenger and that will work perfectly.

    Note: Make sure that you are blocking all the Yahoo Messenger .exe hash files other wise if you are blocking version 2.6.0 and someone in your network has got version of 1.0.9 then it will work for him.

    Hope it helps.

    Habibalby
    ================================
    HND: Higher National Diploma in
    Computer Science(IT)


    Passed:
    MCSA+Security 2003, VCP3, VCP4
    Done:VMware DSA
    ================================[/COLOR]

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    • #3
      Re: deny yahoo messenger with isa 2004 stard

      Look it up on http://www.isaserver.org/

      Great site. Always my first port of call for ISA stuff.
      Server 2000 MCP
      Development: ASP, ASP.Net, PHP, VB, VB.Net, MySQL, MSSQL - Check out my blog http://tonyyeb.blogspot.com

      ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

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      • #4
        Re: deny yahoo messenger with isa 2004 stard

        www.isaserver.org i found it but ... don't benefit

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        • #5
          Re: deny yahoo messenger with isa 2004 stard

          Originally posted by vikjava
          www.isaserver.org i found it but ... don't benefit
          Took me about 50 seconds to find:

          http://www.isaserver.org/tutorials/H...SA_Server.html
          Server 2000 MCP
          Development: ASP, ASP.Net, PHP, VB, VB.Net, MySQL, MSSQL - Check out my blog http://tonyyeb.blogspot.com

          ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

          Comment


          • #6
            Re: deny yahoo messenger with isa 2004 stard

            hi,

            vikjava, Still if you are going to use this method and your clients are connecting to the internet using Firewall Client, you can't block them

            But if they are using a Proxy and they are Authenticated to the Domain then your done, sure it will work.

            BR,

            Habibalby
            ================================
            HND: Higher National Diploma in
            Computer Science(IT)


            Passed:
            MCSA+Security 2003, VCP3, VCP4
            Done:VMware DSA
            ================================[/COLOR]

            Comment


            • #7
              Re: deny yahoo messenger with isa 2004 stard

              Hello,
              The simple way to block it you can block the given below port which is used by yahoo like

              Yahoo Messenger - Voice Chat
              5000-5001 5000-5010 voice chat

              Yahoo Messenger - messages
              5050 messaging. NOTE: It will try ports 5050, 80, any port.


              Yahoo Messenger - Webcams
              5100 video


              Net2Phone CommCenter
              selected 6801, selected telephony, admin should select one TCP and UDP port in the range 1-3000. Same ports are used by Yahoo Messenger - PC-to-Phone.


              try this this will help you

              Bye take care

              Hearty

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