DHCP服務器配置

1、安裝DHCP rpm包

查看dhcp是否安裝

# rpm -qa dhcp

# yum install dhcp

2、查看dhcp安裝後的配置文件

# rpm -ql dhcp

3、配置/etc/dhcpd.conf

安裝dhcp後的配置文件在/etc/dhcpd.conf中，但是裏邊是空的，什麼內容都沒有。

#

# DHCP Server Configuration file.

# see /usr/share/doc/dhcp*/dhcpd.conf.sample  

#

將/usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample 的dhcp的配置文件模板copy覆蓋/etc/dhcpd.conf

# cp /usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample /etc/dhcpd.conf

# vim /etc/dhcpd.conf

其內容爲：

ddns-update-style interim;

ignore client-updates;

subnet 192.168.0.0 netmask 255.255.255.0 {     #將

# --- default gateway

       option routers                  192.168.0.1;   #路由網關

       option subnet-mask              255.255.255.0;

       option nis-domain               "domain.org";

       option domain-name              "domain.org";   #改爲域名

       option domain-name-servers      192.168.1.1;    #改爲DNS服務器地址

       option time-offset              -18000; # Eastern Standard Time

#       option ntp-servers              192.168.1.1;

#       option netbios-name-servers     192.168.1.1;

# --- Selects point-to-point node (default is hybrid). Don't change this unless

# -- you understand Netbios very well

#       option netbios-node-type 2;

       range dynamic-bootp 192.168.0.128 192.168.0.254;    #動態獲取IP的範圍

       default-lease-time 21600;

       max-lease-time 43200;

       # we want the nameserver to appear at a fixed address    #給予某個特定的MAC地址固定的IP地址，主機尋找IP時會優先尋找固定IP

       host ns {

               next-server marvin.redhat.com;

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

               fixed-address 207.175.42.254;

       }

}

至此，DHCP服務器已經配置完成了。