Re: Streaming (anything)

[Lance <lance_tt bellsouth net>]

With  iptables you could limit the data transferred which could possibly
help block streaming media.  But this would require upgrade to kernel
2.4.x.

On 30 May 2001 18:45:16 -0500, Michael R. Jinks wrote:
> Ashley M. Kirchner wrote:
> 
> > "Michael R. Jinks" wrote:
> > 
> > 
> >> At the worst case, use tcpdump(8) on one of the routing machines while
> >> using the offensive programs, and just note the ports that they use.
> > 
> > 
> >     That's what I thought too...blah.
> 
> What blah?  If you want the truth, look for yourself; documentation 
> lies.  ;)  And tcpdump is your own true friend.
> 
> 
> 
> >> Just out of curiosity, why do you need to block these services specifically?
> > 
> > 
> >     Because we're having employees sitting on their computers, listening to the
> > radio, listening to tv broadcasts over real player, or some other crap through media
> > player.  It's clogging our line.  So, "upstairs" gave me authorization to block all
> > of them.
> 
> Aha.  Okay, platitude imminent:  Technology is ill-suited for solving 
> social and legal problems.  Has Upstairs banned these activities?  Then 
> this is an HR problem, not a sysadmin problem.  Remember that if you 
> have clever users, they can find ways around filtering measures that you 
> put on the router.  There are also (actually, I assume that there are) 
> streaming protocols that run through port 80/HTTP.  Pretty sure you 
> can't afford to block that.
> 
> What about gathering packet statistics at the router (MRTG?  Something 
> Else?) and using that information either to confront the users 
> ([pointing at pretty graph] "THIS is why our net connection is so slow 
> and our connectivity charges are so high.") or to narrow down 
> conclusively what the bandwidth drain is, and block those ports/IP's?
> 
> 
> -- 
> ~~~Michael Jinks, IB // Technical Entity // Saecos Corporation~~~~
> 
> 
> 
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