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Re: Stop yahoo messenger
> Any idea on how to block yahoo messenger using Packet Filter.
> I tried blocking cs.yahoo.com scsa.yahoo.com and also port 5050 but
couldn't
> stop yahoo from getting out of the packet filter.
Like most instant messengers today, Yahoo Mesenger will scan other ports if
it finds that its default port is blocked. It also will work through an
http proxy. If you really want to block it, about your only choice is to
block all of the Yahoo netblocks by IP address, which of course will also
block web access. The other option of course is to just watch for Yahoo
Messenger packets/connections, then walk over and uninstall it for the user.
If you want to get complicated, you could even write a script to watch for
YM connections, then block that user's Internet access for a half hour.