Hi All, Im in the beginning of IPTABLES and I need some examples, especially explaining some DNS solutions. At first, here is my setup: I have 3 netcards in the firewall: - 1 for the router - 1 for DMZ - 1 for LAN. DMZ: - Web server - Mail server (DNS?) LAN: - DHCP server (DNS?) My question: should I have a DNS server on the DHCP (LAN) machine serving local requests, or only on the Mail server (DMZ)... or maybe both and then use forwarding? Second, I use DHCP - I guess my DNS server will get an automatic update. Thanks in advance. Nikolaj G. __________________________________ Do you Yahoo!? Yahoo! Mail SpamGuard - Read only the mail you want. http://antispam.yahoo.com/tools