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Firewalls, basic questions



Dear Russell,
Wow! I looked through all the files in the distro and could not find one named 'ipchains.' But my method is extremely primitive: when I installed Woody, I had the installer scan all 8 disks, so all the files would be loaded into the apt database. 1. Is there a way of searching the apt database for specific files? Could you send me an example of how one would enter such an instruction on the command line? I only know enough to suspect that you might have to "pipe" something through a filter like 'groff' or 'troff,' but the only such maneuver I have tey learned is to pipe things through 'less' so that I could scroll back and see the whole output. 2. I succeeded in installing kernel 2.4.18 only on the second pass; initially I did not modify LILO correctly and I lost access and bootability to the entire partition and had to start over. Since this whole reinstall was my 10th (I do not exaggerate) time I have tried to get a workable system since I began in mid-November, I am increasingly reluctant to invest more time in Linux. So what do you recommend as a sound approach to a firewall? Follow the Security-quickstart HOWTO and use iptables?

Please keep in mind that, following the advice of several HOWTOs, I will not connect this laptop to the internet until I have a firewall built. So all of Debian's online software updates are unavailble to me until then.
Pietro

Russell Coker wrote:

On Thu, 9 Jan 2003 18:32, Pietro Calogero wrote:
Also, I found out the hard way that I cannot establish firewall security
for my machine unless I install kernel 2.4.x.  Woody comes with iptables
(which work only with 2.4x) and Woody does NOT come with ipchains (which
work with 2.2x or 2.4x).  No penguins advised me about this.  But the

Woody has ipchains.

The dependencies will force you to have either iptables of ipchains, but it's OK to have both.

I've got a Woody server with ipchains.




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