Re: howto block yahoo messenger

[Kunal Walia <kwalia@xxxxxx>]

Correction:

Officially Yahoo Messenger uses port 5010 (on my machine it shows as using
5050 though)

Check it out http://www.networkice.com/advice/Exploits/Ports/
- Kunal

***************************************************************
The beatings will continue till the morale improves !
***************************************************************
----- Original Message -----
From: Kunal Walia <kwalia@xxxxxx>
To: <linux-delhi@xxxxxxxxxxxxxxxxxxxxx>
Sent: Wednesday, February 14, 2001 9:24 AM
Subject: Re: [linux-delhi] howto block yahoo messenger


> Also,
> I still fail to understand how blocking http://pager.yahoo.com would
prevent
> the Messenger service from working 'cos that server is a mere http server
> thats all. Messenger doesn't use it to connect to its database or nething.
> And though Messenger uses port:80 like u said......it also needs port 5050
> to effectively "send-messages" across the service.
>
> Something else that this brings up: Even if u do block the port the user
can
> still configure the service to run on some other port (well not in this
> particular case but on a more general basis).
>
> - Kunal
>
> ***************************************************************
> The beatings will continue till the morale improves !
> ***************************************************************
> ----- Original Message -----
> From: Harshal Vaidya (CTS) <HarshalV@xxxxxxxxxxxxxxxxx>
> To: <linux-delhi@xxxxxxxxxxxxxxxxxxxxx>
> Sent: Wednesday, February 14, 2001 7:30 AM
> Subject: RE: [linux-delhi] howto block yahoo messenger
>
>
> > well pal i respect your idea but the messenger uses port 80 coz it
> > communicates through http
> > and if behind a proxy it can use SOCKS also !!!
> > so how about BLOCKING PORT 80 and getting off the net FOREVER !!!!!
> >
> > ;)
> > regards,
> > Harshal
> > Vaidya.
> >
> >
> > -----Original Message-----
> > From: Kunal Walia [mailto:kwalia@xxxxxx]
> > Sent: Wednesday, 14 February 2001 17:47
> > To: linux-delhi@xxxxxxxxxxxxxxxxxxxxx
> > Subject: Re: [linux-delhi] howto block yahoo messenger
> >
> >
> > How about just blocking the port that it uses?? (I might be way off !)
> > - Kunal
> >
> > ***************************************************************
> > The beatings will continue till the morale improves !
> > ***************************************************************
> > ----- Original Message -----
> > From: Ambar Roy <ambarroy@xxxxxxxxx>
> > To: <linux-delhi@xxxxxxxxxxxxxxxxxxxxx>
> > Sent: Wednesday, February 14, 2001 6:20 AM
> > Subject: Re: [linux-delhi] howto block yahoo messenger
> >
> >
> > > Hi,
> > >
> > > > How can I block yahoo messenger preferably using ipchains.
> > >
> > > it is very difficult to block yahoo messenger, as it can use various
> > methods
> > > to connect. the only effective method is to block all the ip addresses
> of
> > > the messenger server. And this is going to take some time to figure
> out!!
> > >
> > > Bye,
> > >     /\ |\/| |3 /\ r
> > >
> > >
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