I have search and i didn't find nothing about how to use more public ip's whit just one network card. Because i have a server and i have 5 computers and 5 public ip's and i want my 5 computers to go into the internet with diffrent public ip.

Thank you for your time.

ifconfig eth0:0 y.y.y.y netmask x.x.x.x
ifconfig eth0:1 y.y.y.z netmask x.x.x.x
...

Sorry to be slow here...

Max gave you the right way to get more than on ip (private or/and public) but you description of what you want is not reealy clear... 5 computers, 5 public ips but you what them to go out on internet with different IPs from THE SAME GATEWAY... Right ?? So if that's right, you will have to manage hosts based routing ont the gateway to do that...

i.e.

route add -net 192.168.0.1 netmask 255.255.255.255 gw 64.14.1.1
route add -net 192.168.0.2 netmask 255.255.255.255 gw 64.14.1.3
route add -net 192.168.0.3 netmask 255.255.255.255 gw 64.14.1.2

or someting similar....