CentOS 5
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DHCP Server
2015/01/13
 
Configure DHCP ( Dynamic Host Configuration Protocol ) Server. If you make your linux computer DHCP server, disable DHCP function on routers and so on in LAN.
[1] Install and configure DHCP.
[root@dlp ~]#
yum -y install dhcp

[root@dlp ~]#
cp -f /usr/share/doc/dhcp*/dhcpd.conf.sample /etc/dhcpd.conf

[root@dlp ~]#
vi /etc/dhcpd.conf
# line 4: specify your network and subnetmask

subnet
10.0.0.0
 netmask
255.255.255.0
 {
# line 7 : specify default gateway

option routers
10.0.0.1
;
# line 8: specify subnetmask

option subnet-mask
255.255.255.0
;
# line 10: specify NIS domain name iy you using
# comment out if you do not use.

option nis-domain
"srv.world"
;
# line 11: specify domain name

option domain-name
"srv.world"
;
# line 12: specify IP address of DNS

option domain-name-servers
10.0.0.30
;
# line 14: comment out

#
option time-offset
-18000;
# line 21: specify the range of IP addresses for clients

range dynamic-bootp
10.0.0.200 10.0.0.254
;
# line 22: default terms of lease

default-lease-time
21600
;
# line 23: maximun terms of lease

max-lease-time
43200
;
# line 26-30: comment out

#
host ns {

#
next-server marvin.redhat.com;

#
hardware ethernet 12:34:56:78:AB:CD;

#
fixed-address 207.175.42.254;

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

Starting dhcpd:
[  OK  ]

[root@dlp ~]#
chkconfig dhcpd on
[2] Configure on client. This example is on Windows 7.
Open Network settings and go to the sacreen like below.
[3] Check boxes like below, then IP address is re-configured automatically.
[4] See the network status. Automatical configuration is done.
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