Ubuntu-Server 6.10 防火墙系统安装

　　Includes: Shorewall, NAT, Caching NameServer, DHCP Server, VPN Server, Webmin, Munin, Apache (SSL enabled), Squirrelmail, Postfix setup with virtual domains, courier imap imaps pop3 pop3s, sasl authentication for road warriors, MailScanner as a wrapper for SpamAssassin, Razor, ClamAv, etc. Samba installed, not configured.

　　Needs very little maintenance and is extendable beyond your wildest imagination. All depending on the hardware used, of course.

　　This is a COPY&PASTE howto. For info use the net. I did... However, contributions and suggestions are allways welcome! I know this can be done better, so feel free.

　　If anyone of you can find the time to add a good install and config for snort AND snortsam, including a comprehensive controll panel, I would be very greathfull.

　　Scope: creating a firewall/(mail)gateway for a small network (say 10 to 15 users or so on a PIII 450MHz, 512 MB ram and two identical network interface cards, broadband connection, fully featured, for a bussines environment. Better specs of your hardware (notably the amount of ram) will improve the performance of your server significantly. The specs mentioned ar a bare minimum for not so demanding customers, yust to indicate that if you really want, it can be done indeed (need to do some tweaking afterwards though).

　　Expected audience: (beginning) sysop.

　　This tuto leads towards a solid 'ready to go' sytem. The fun part, I think, (tweaking and tuning etc.) starts when you are done. You may wish to inspect your logs to find clues as to where the tuning should start. Munin might tell you a lot as well.