I have linux RedHat 8.0 and I want to set up mydomain I get IP ,gateway,DNS from ISP: IP 202.45.99.20 gateway 202.45.99.11 DNS 202.25.99.4 which connect by Brige. Also I want to set up firewall, server, office network,contect between firewall and Server by Hub. - Firewall(compuer 1) I mean that computer set up firewall have 2 LAN cards eth0( connect internet),eth1(connect internal network have server,office network )and public DNS(mydonain.com). How to set up ip eth0,eth1,Hostname, Gateway,Name servers and Mydomain.com? - Server(computer 2) I have web and mail server with mydomain.com . How to set up ip eth0,Hostname,Gateway,Name servers and Mydomain.com contect to intenet? - Office network How to set up ip eth0,Hostname,Gateway,Name servers contect to intenet and server ? Please help me configuring iptables in mynetwork ? And recommend set IP and Mydomain.com work together. Thank you Ley

# ifconfig $INTERFACE $IPADDRESS broadcast $BROADCAST netmask $NETMASK # /sbin/route add -net default gw $GATEWAY netmask 0.0.0.0 metric 1 # hostname $HOSTNAME # man resolv.conf # man iptables http://www.tldp.org/HOWTO/HOWTO-INDEX/networking.html