1. Install the dhcp package:
# yum install dhcp
2. Copy the sample file /usr/share/doc/dhcp*/dhcpd.conf.sample.
# cp /usr/share/doc/dhcp*/dhcpd.conf.sample /etc/dhcp/dhcpd.conf
3. The Sample dhcp configuration file will look as follows.
# cat /etc/dhcp/dhcpd.conf
Allow booting;
Allow bootp;
authoritative;
subnet 192.168.0.0 netmask 255.255.255.0 {
option routers 192.168.0.1;
range 192.168.0.100 192.168.0.200;
default-lease-time 21600;
max-lease-time 43200;
You will need to change the IP addresses/ranges and subnet masks as per your requirements in the file above.
4. Restart the dhcp service once you are done with doing all the changes.
# /etc/init.d/dhcpd restart
For more about the dhcpd.conf, use the below command to check the man page:
# man dhcpd.conf