North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Routers vs. PC's for routing - was list problems?
On Thu, 23 May 2002 18:01:03 EDT, "Steven J. Sobol" said: > The box I want to build is passing packets between the rest of my network > (and the public Internet) and one server that will hold sensitive data. > It'll be a Linux box with the TCP/IP stack running in bridged mode, with > two ethernet adapters installed. The box just needs to boot up and run. It > doesn't need to log anything. I've heard tell that a good way to secure a Linux box that's doing this is to have it boot, set up the interfaces, set up iptables, and then do a quick /sbin/halt - if you fail to 'ifconfig down' the interfaces on the way down, the kernel will happily forward the packets while being immune to exploits (since there's no processes running anymore). I haven't tried it, so I dont know if it works. Maybe there ARE cases where setting the default runlevel to 0 or 6 make sense. ;) Attachment:
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