So what is this CentOS, and why are we using it? The short answer is that CentOS,the Community ENTerprise OS, is an RPM-based distro derived from Red HatEnterprise Linux with all of Red Hat’s trademarks stripped out. We’re focusing on ithere because it’s well supported by Xen, reasonably generic in structure, and fairlypopular. Additionally, it’s more stable than Fedora and a lot cheaper than Red Hat’sofficial product, Red Hat Enterprise Linux (RHEL for short).More...

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[root@stone ~]# vi /etc/sysctl.conf

# Controls IP packet forwarding
net.ipv4.ip_forward = 1

terus tambahin ini di 

[root@stone ~]# vi /etc/rc.local

iptables -t nat -A POSTROUTING -o eth0 -s 192.168.0.0/24 -j MASQUERADE

reboot dech ...

Pertama install dhcpnya dulu kalu belum ada:

#yum install dhcp

Di server ini range ip nya adalah 192.168.0.101 s/d 192.168.0.254

terus kita konfigurasi dhcpnya, filenya ada di/etc/dhcp/dhcpd.conf

[root@stone /]# vim /etc/dhcp/dhcpd.conf More...