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Subject: 
Re: review: Radeon 7000 for BrickDraw3D, low-end Mac
Newsgroups: 
lugnet.off-topic.geek
Date: 
Tue, 16 Apr 2002 18:12:49 GMT
Viewed: 
406 times
  
In article <Guo6u6.Mu4@lugnet.com>,
Larry Pieniazek <lpieniazek@mercator.com> wrote:
How can it be filtering and forwarding if there are no processes running?
And why wouldn't it shutdown all the way at some point?

It's something of a cheat; the world doesn't tend to consider the kernel
to be a process in and of itself, and with stuff like ipchains you can
effectively put all the firewall rules and functionality in the kernel.
So you still have a kernel running.

I personally consider something like LIDS to be a better solution--
Mandatory Access Control added on top of Unix. You can restrict, file
by file, access-- so, for example, you can set the log files to have
only "append only" access; you can't modify 'em except for adding to the
end. You can set it up so that any file you don't need append access to
for logging have _no_ writable access-- even by root. (Mandatory Access
Control is cool that way.)  Shutting down processes that arent the kernel
gets you in a position where you have no logging and therefore no real
intrusion detection.

Of course, in the ideal world, you can't _have_ an intrusion to detect
a halted firewall, but I don't live in an ideal world...

-JDF
--
J.D. Forinash                                     ,-.
jd@forinash.not                                  ( <
The more you learn, the better your luck gets.    `-'



Message has 1 Reply:
  Re: review: Radeon 7000 for BrickDraw3D, low-end Mac
 
(...) Every Linux firewall I've seen is done differently. I have mine all installed on a write-protected floppy (no HD), I re-compiled syslog to use a different config file, hidden away as inconspicuously as possible, and it logs to my main server. (...) (23 years ago, 17-Apr-02, to lugnet.off-topic.geek)

Message is in Reply To:
  Re: review: Radeon 7000 for BrickDraw3D, low-end Mac
 
(...) Conversely? How can it be filtering and forwarding if there are no processes running? And why wouldn't it shutdown all the way at some point? (23 years ago, 16-Apr-02, to lugnet.off-topic.geek)

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