If you are concerned because of security reasons, you may want to
investigate into picking an "official" IM service for your company, along
with policies and guidelines to their use. I believe there are some IM
clients that are more secure than others, so you may want to check with
vendors to see if they do encryption. I've heard that one company in
particular is going to offer an IM client with SSL encryption. (Sorry, I
can't share who that is, it may be company confidential.)
-hal
Hal Rottenberg | Hewlett-Packard
Technical Support Engineer | Phone: +1-404-774-4041
Internet Security Division | Email: [EMAIL PROTECTED]
Web: http://www.hp.com/security
> My company uses Checkpoint FW-1 4.0 running in a NT 4.0
> box. Is there any way to block users using AOL messenger ? I
> blocked AOL messenger default port:5190 but it swithed to
> other ports such as 53, 23 or 25 which have to be opened.
> Also, connections of AOL logon host "login.oscar.aol.com" and
> AOL Netblock "64.12.149.0", "152.163.180.0" are disallowed.
> However, I still see users happy using AOL messenger which
> really discourage me. Could anyone give me some ideas how to
> block AOL Msgr? Should I block AOL Msgr by port or address
> basis or I have to buy third-party SW like WebSense or
> SurfControl? Any comments will be appreciated.
-
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