u can use squid to block chat then put it in ur ACL (in squid.conf). 


At 09:30 AM 09/28/2000 +0800, you wrote:
>superman,
>
>Yes there is, but very tedious. We blocked Yahoo chat from our net ... our
>internal users cant access yahoo chat. How? we just create our own DNS zone
>file for that site.  Basically, we made our internal DNS servers the
authoritative
>DNS for chat.yahoo.com.  Hope that helps!
>
>wonderwoman
>
>John Paul Tomas wrote:
>
>> Good day!
>>
>> Are there posibilities to block web based chats?
>>
>> Thanks
>> SUPERMAN
>>
>>
>> _
>> Philippine Linux Users Group. Web site and archives at
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>
>_
>Philippine Linux Users Group. Web site and archives at
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>To leave: send "unsubscribe" in the body to [EMAIL PROTECTED]
>
>

Ernesto V. Herrera, Jr.
Web Administrator
Pan Pacific Computer Center, Inc.
3/F GREPALIFE BLDG.
221 Sen. Gil J. Puyat Ave. Makati City

---------------------------------------

"All data are fraudulent. 
All communications are attempted hacks. 
All clients are thieves. 
Technology is only my first line of defense" 

- morning litany for a Web Server Administrator 


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