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Message-ID: <001401c3eb3a$64d6b8d0$0100a8c0@grotedoos>
Date: Wed, 4 Feb 2004 17:17:32 +0100
From: "Berend-Jan Wever" <SkyLined@...p.tudelft.nl>
To: <owl-users@...ts.openwall.com>
Subject: Re: dhcp client
You could still put dhclient on a cron job to be run once every 5 hours and
5 minutes ?
But, if someone wanted to exploit a dhclient bug, he'll probably won't have
a problem with waiting 6 hours for dhclient to run...
Cheers,
SkyLined
PS. I modified my "/bin/sh" to only run when the user executing it doesn't
have "/bin/false" as shell in "/etc/passwd". It's a lame security trick
that's easily bypassed, but it does keep the script kiddies out. Maybe it's
something Owl could use ?
----- Original Message -----
From: "Steve Bremer" <steveb@...coinc.com>
To: <owl-users@...ts.openwall.com>
Sent: Wednesday, February 04, 2004 15:57
Subject: Re: dhcp client
>
> Hi,
>
> >Don't know of any, can't make any recommendations personally.
>
> Here is a pretty popular pppoe client:
>
> http://www.roaringpenguin.com/products/rp-pppoe/index.php
>
> >One other tip I will give ; make your dhcp client exit after
> obtaining
> >a lease ; otherwise it may be possible to send bad data to your
> client
> >and make it crash or worse...
>
> We have a problem where one of our ISPs requires us to make a DHCP
> request every 6 hours or they cut off our connection. Even though we
> pay for a "business class" connection and static IP, we have to make a
> DHCP request at regular intervals or their firewall blocks our traffic.
> :-( It's a terrible setup, but it's the only broadband provider in the
> area.
>
> Steve Bremer
> NEBCO, Inc.
> System & Security Administrator
>
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