[Linux] Config DHCP Server in linux

* Set DHCP server
# cat /etc/dhcp/dhcpd.conf

* Check DHCP Serve status :
#service dhcpd status

* Check DHCP Serve stop:
#service dhcpd stop

* Check DHCP Serve start :
#service dhcpd start

* Delete all records DHCP province for client :
#echo "" >/var/lib/dhcpd/dhcpd.lease

* Show all IP province for client :
#cat /var/lib/dhcpd/dhcpd.leases