Blocking the traffic by dest port using a firewall only solves part of the
problem, as these IM support communication through proxy.
Need to use acl to deny access to the IM servers in Squid also...
Thanks,
Wei Keong
On Fri, 20 Dec 2002, Yuzz wrote:
> I also having the same problem but if you have hardware firewall, it's might
> help you. Basically msn and icq
> we can block using linux firewall but yahoo is really hard to block because
> yahoo messenger using any
> available port in our network in order to communicate. You need to setup either
> ipchains/iptables. Of course
> this is not mailist to ask detail about ipchains/iptables. I just can give
> suggestion.
>
> ketan wrote:
>
> > Dear Friends,
> > I wanna to block msn and yahoo messenger, I am frustrated by trying
> > differnet combinations of IP Address and Url for Yahoo and Msn messenger, it
> > generates different url and different ip on connection every day i use new
> > url and ip can any one help me how to restrict both messenger.
> >
> > With Regards
> > Ketan
>
> --
> Yuzz
> System Engineer
> Tel : +606-3345666
> Fax : +606-3372233
>
>
>
Received on Fri Dec 20 2002 - 03:07:54 MST
This archive was generated by hypermail pre-2.1.9 : Tue Dec 09 2003 - 17:12:10 MST