[Ti] AIM, iChat, etc

[Yuta Hsu]

Well, I just ran a test by starting the firewall and blocking 5190 and 
was able to log in using iChat and chat successfully.  I even blocked 
port 4099 which is another AIM port, and was still able to chat.  I 
think AIM has become a bit more flexible in finding ports to use.  I 
know you can change the port in the AIM client.

Perhaps you should just block everything except for mail (port 25) and 
http (port 80) and see if that works.  You could also try a 3rd-party 
firewall interface such as BrickHouse.  It doesn't replace the built-in 
firewall, but gives you a more detailed & robust GUI to it than the 
System Pref.  Little Snitch is also another good app, and it's 
iChatAgent blocking does work (I've tested it).  I get the feeling the 
built-in firewall PrefPane doesn't quite do the job.

FYI, here's a list of ports I found.
http://www.practicallynetworked.com/sharing/app_port_list.htm#Messaging

Good luck!
Cheers,
Yuta


On Jun 27, 2004, at 2:24 PM, b wrote:

> H. Peet Foster paused, thought it over, and spoke thusly:
>
>> This is way OT to the list, I know, but you all are the best Mac 
>> brains.  Thanks again for your input.
>>
>> Peet
>
> Well, if Port 5190 was blocked, it cannot work, that is the only AOL 
> Messenger port that allows logging in to the AOL servers.
>
> I just ran a test, using Little Snitch. Blocked TCP over Port 5190, 
> and when I went back in to connect through iChat I got "The connection 
> was refused by the server"
>
> I'd double-check my port blocking if it was me.
>
> ~flipper
>
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