I need some firewall help, for starters.
At present, all I need open is SSH, WWW, and FTP.
I tried this: http://www.rexx.com/~dkuhlman/iptables_install.html but I'm installing on 3.0r1 with 2.2 kernel and got several error messages regarding incompatible kernel when I tried to start the firewall.
I'd like to upgrade to a newer kernel, but can't seem to find any help on how to do this easily using apt-get. I think if I'm using 2.4 or 2.6 my problem with the firewall will go away. I do not have physical access to the box I'm working on, so need to be able to do all of this without physical intervention, or even the risk of it. What's the safest way to upgrade a Debian kernel?
Also. Is there any sort of firewall that is real easy to configure, something like this:
[SuperEasyFirewall] Open=22,80,23 Blocked=22.23.34.43:[22,80] Closed=EverythingElse
I don't understand why a firewall config has to be four miles long and so dern complicated!
-Jared