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Blocking MSN Messenger?

Tekno2k3 asks: "As a sysadmin for a financial company, I have been tasked with removing Instant Messaging from our network. The only service that is being difficult is MSN Messenger. It uses many methods to get around being blocked. These include using port 80, using it's own DNS servers for lookup, using MANY logon servers, and using reverse DNS lookup. Has anyone had any success in blocking Messenger?"

4 of 236 comments (clear)

  1. Re:Something at the protocol level? by Anonymous Coward · · Score: -1, Offtopic

    boy, that was helpful: do something, do some other things, look for things that I don't have... wow, you're so smart

  2. Maybe it's just me... by chriso11 · · Score: -1, Offtopic

    I am tired of seeing people 'tasked'. Or having to put my cell phone to the 'off position' while on an airplane. It seems like legalese is taking over ordinary usage of english.

    --
    No, I don't trust in god. He'll have to pay up front, like everybody else.
  3. Re:Something at the protocol level? by Anonymous Coward · · Score: -1, Offtopic

    I'm pretty sure you just paraphrased the original question.

  4. Re:"TASK" IS NOT A VERB! by Blob+Pet · · Score: 0, Offtopic

    "He tasks me....He tasks me and I shall have him. I'll chase him round the moons of Nibia and round the Antares Maelstrom and round Perdition's flames before I give him up!"
    --Khan

    --
    "...today consumers have been conditioned to think of beer when they see a bullfrog..."