Another idea: Read from messenger.yahoo.com which ports have to be opened to what hostnames.
Block the entire IP classes of those hosts for the respective ports (be aware, a hostname usually point to several IPs). This is how i managed to allow yahoo messenger (by allowing that traffic). Don't forget to check from time to time is any of the host has a new IP. They usually do that relatively often :| Good luck. > On Fri, 20 Feb 2004, Winanjaya wrote: > > but yahoomessenger is smarter, it will check the opened port and then use > > it > > Find what it is using and then block that. > > Regards > Henrik -- Serban Teodorescu.
