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AOL Instant Messenger is accessible even though port 5190 is blocked

Posted on 04/30/2005 4:36:32 AM PDT by rudy45

I am trying to block AIM from a computer. I have configured our router DLINK 614+ to block port 5190.

After I do so, I am unable to connect via a Dell Inspiron 5100 that runs XP Home.

However, a desktop computer on the same network STILL can access AIM. It also runs XP Home.

Are there other ports that AIM uses? Why is one computer unable to reach AIM and the other one is?

Is there a way I can tell which port the successful computer is using to reach AIM?

Thanks for any help. How else can I block AIM?


TOPICS: Computers/Internet
KEYWORDS: aim; aol; help

1 posted on 04/30/2005 4:36:32 AM PDT by rudy45
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To: rudy45

Run ZoneAlarm and forbid AIM to connect. You should be running ZoneAlarm anway, of course.


2 posted on 04/30/2005 4:38:51 AM PDT by snarks_when_bored
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To: snarks_when_bored

typo: anyway.


3 posted on 04/30/2005 4:39:26 AM PDT by snarks_when_bored
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To: snarks_when_bored

Thanks. I'd rather control access at the router, if I can. I assume that in using Zonealarm, I would have to install it at the PC in question?


4 posted on 04/30/2005 4:46:25 AM PDT by rudy45
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To: rudy45
Yes, but it's a free download:

ZoneAlarm free version

5 posted on 04/30/2005 4:48:17 AM PDT by snarks_when_bored
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To: rudy45
I haven't tried to limit AIM, but if you're curious about what ports specific applications are using, I would suggest downloading a copy of TCPView. I think I got it here:
http://www.sysinternals.com/ntw2k/source/tcpview.shtml

With AIM running, launch TCPView and it should tell you which port(s) it is using.

Hopefully you could then block that port.

Good luck!
6 posted on 04/30/2005 5:05:41 AM PDT by rockrr (Revote or Revolt! It's up to you Washington!)
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To: rudy45

You should be able to access the logs on the router and see what ports are outgoing from the machine you're trying to block. I'd guess that you just have something set up incorrectly in your rules.


7 posted on 04/30/2005 5:36:55 AM PDT by dinodino
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To: dinodino; rockrr; snarks_when_bored

Haha, she CHANGED THE PORT ON WHICH AIM CONNECTS lol...

At the main AIM screen is a pulldown for "preferences." There, you can change signon options, including an option for the port one connects to. She changed the port. But I know what it is and I changed my firewall rule accordingly lol.

Thanks.


8 posted on 04/30/2005 6:28:00 AM PDT by rudy45
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To: rudy45

Glad you caught it.


9 posted on 04/30/2005 7:02:34 AM PDT by snarks_when_bored
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To: rudy45

Do a Google for a free firewall called Outpost. Download it and install it on any PC you want to block AIM on. Done.


10 posted on 05/01/2005 5:15:50 PM PDT by Bloody Sam Roberts (This tagline will be destoyed to make way for a new Hyperspace bypass.)
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