CentOS 6
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Configure DHCP Server
2014/08/02
 
Configure DHCP ( Dynamic Host Configuration Protocol ) Server. DHCP Server uses 67/UDP.
[1] Install and configure DHCP Server.
[root@dlp ~]#
yum -y install dhcp
[root@dlp ~]#
vi /etc/dhcp/dhcpd.conf
# create new

# specify domain name

option domain-name
"srv.world";
# specify name server's hostname or IP address

option domain-name-servers
dlp.srv.world;
# default lease time

default-lease-time 600;
# max lease time

max-lease-time 7200;
# this DHCP server to be declared valid

authoritative;
# specify network address and subnet mask

subnet 10.0.0.0 netmask 255.255.255.0 {
   
# specify the range of lease IP address

    range dynamic-bootp 10.0.0.200 10.0.0.254;
   
# specify broadcast address

    option broadcast-address 10.0.0.255;
   
# specify default gateway

    option routers 10.0.0.1;
}
[root@dlp ~]#
/etc/rc.d/init.d/dhcpd start

Starting dhcpd:
[  OK  ]

[root@dlp ~]#
chkconfig dhcpd on
[2] If IPTables is running, allow DHCP port. DHCP uses 67/UDP.
For "-I INPUT 5" section below, Replace it to your own environment.
[root@dlp ~]#
iptables -I INPUT 5 -p udp -m state --state NEW -m udp --dport 67 -j ACCEPT

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