[Techtalk] kicking unwanted users off the network

Carla Schroder carla at bratgrrl.com
Mon Jan 15 05:46:21 UTC 2007


On Sunday 14 January 2007 18:44, Maria McKinley wrote:
> Carla Schroder wrote:
> > hey all, I remember once upon a time there was a simple way to boot users
> > off the network, as long as you knew their IP address. But I forgot, and
> > my google-fu is failing me- what ways are there to punt off unwanted
> > users?
>
> What sort of network are you talking about? I know my wireless router
> has the ability to block off computers based on their mac address, and
> the wireless router admin page also gives me the ability to find out a
> mac address using a particular ip. If you are running your own dhcp
> server, the leases file will give the mac address of the computer using
> the ip address, and then you can deny service to that mac address. Are
> you using a dhcp server, or how are the users getting their ips?
>

On a LAN, all of the above :) 

I remember reading about some tcp command that would fling an unsuspecting 
user off your LAN, or it works at the TCP level, but I'll be danged if I can 
find it again.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Carla Schroder
Linux geek and random computer tamer
check out my Linux Cookbook! 
http://www.oreilly.com/catalog/linuxckbk/
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