i posted this on rackshack in response to a user looking for some links, and i figured someone here would find it useful. hopefully someone does.
these are most of the links i have in my huge bookmarks folder of server stuff. being paranoid about network security is not a bad thing.
(portsentry is not highly recommended)
> download logcheck (and portsentry)
> great logcheck howto(and if you can do this, portsentry is a breeze):
> if you choose to use portsentry, here's an informative text. i ended up going with pmfirewall, and ditching portsentry thanks to huck's many informative posts.
> download IPChains. also howto's.
> GREAT secure FTP / SSH program.
AATOOLS PORT SCANNER
> i believe i'm going to use mainly this for portscanning my box from nowon.
here are some other utilities/texts i have bookmarked. they've all helped me very much.
INTRO TO TCPWRAPPERS
RECOVERING FROM A BREAK IN
> open source firewall. looks abandoned though.
> HAVEN'T USED IT. but it looks interesting. kind of.
> doesn't hurt to read up on it's spam controls.
hope someone finds this list useful.