DHCP Server Installation



Step 1

[root@local~]# yum install dhcp

Install dhcp service rpm via yum.

[root@local~]# vi /etc/dhcpd.conf
ddns-update-style               none;
default-lease-time              259200;  ## 3 days lease
max-lease-time                  518400;  ## 5 days max lease
option routers                  192.168.1.1;   ## Gateway
option broadcast-address        192.168.1.255; ## Broadcast
option domain-name-servers      202.177.26.100, 202.177.26.110;  ## DNS

subnet 192.168.1.0 netmask 255.255.255.0 {
    range 192.168.1.100 192.168.1.199;  ## DHCP client range
    option subnet-mask   255.255.255.0;
    option nis-domain    "domain";
    option domain-name   "domain";


    ## HW address map to fix IP, delete this tab if no one is fix IP
    host client {
        hardware ethernet    00:40:95:30:43:B4; 
        fixed-address        192.168.1.5;       
    }


}
By default the DHCP broadcast is monitoring as "eth0" , if you want enable in mutli network interface, you can edit :

[root@local~]# vi /etc/init.d/dhcpd

daemon /usr/sbin/dhcpd ${DHCPDARGS} 2>/dev/null
daemon /usr/sbin/dhcpd eth1 2>/dev/null
daemon /usr/sbin/dhcpd eth2 2>/dev/null



Step 2

[root@local~]# /etc/init.d/dhcpd start
[root@local~]# chkconfig dhcpd on

Start dhcp service and enable auto-start.

[root@local~]# netstat -tlunp |grep dhcp
[root@local~]# tail -n50 /var/log/message

Check the service is running normally or not.

[root@local~]# cat /var/lib/dhcp/dhcpd.leases

Check the status of client access.



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