#### Modified configuration#####

gedit /etc/dhcp/dhcpd.conf

example:

# option definitions common to all supported networks...

default-lease-time 600;

max-lease-time 7200;

# If this DHCP server is the official DHCP server for the local

# network, the authoritative directive should be uncommented.

authoritative;

# Use this to send dhcp log messages to a different log file (you also

# have to hack syslog.conf to complete the redirection).

log-facility local7;

subnet 192.168.100.0 netmask 255.255.255.0 { #network

range 192.168.100.20 192.168.100.100; # Range

option domain-name-servers 192.168.100.5, 8.8.8.8; #Pri DNS , Sec DNS

option domain-name "krizna.com"; #Domain name

option routers 192.168.100.1; #Gateway

option broadcast-address 192.168.100.255; #Broadcast

default-lease-time 600;

max-lease-time 7200;

}