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Thread: Resolving ISP's thu a java chat client

  1. #1
    Junior Member
    Join Date
    Dec 2002

    Question Resolving ISP's thu a java chat client

    Hi all.

    Question: Recently I was in a java based chat room, thru internet explorer , fully up to date.
    One of the chatters managed to resolve my isp and began to actually resolve my current IP. The client in question is unknown, but has no tools to do this as in some IRC clients. This is sort of worrisome. I've tried all over the net to find the utility he used. He was not a room moderator. The site that runs the chat client is not saying a word, so wondering if this is a vulnerability on their part as well.
    Commenst and answers appreciated.

  2. #2
    Just a Virtualized Geek MrLinus's Avatar
    Join Date
    Sep 2001
    Redondo Beach, CA
    If the java client has "host masking" (where it uses a hash to hide the IP Address), there are -- sometimes -- ways to get around that (particularly if the hashing isn't a strong algorithm and doesn't have a true random salt).

    But, it is possible that the java client isn't masking the IP and he simply got it by doing a /whois <nick>
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