rhel5下配置dhcp服务器

rhel5下配置dhcp服务器

dhcp 动态分配ip地址服务器

优点：分配的ip地址不会重复，可以减轻管理员的负担

开始配置：

  yum install -y dhcp
  //安装软件包
  # cat /etc/dhcpd.conf

   DHCP Server Configuration file.
   see /usr/share/doc/dhcp*/dhcpd.conf.sample
  //提示去找dhcpd.conf.sample
  # cp /usr/share/doc/dhcp-3.0.5/dhcpd.conf.sample /etc/dhcpd.conf
  cp: overwrite `/etc/dhcpd.conf'? y
  //将文件复制过去
  vim /etc/dhcpd.conf
 1 ddns-update-style interim; //DDNS
 2 ignore client-updates; //不允许client更新DNS
 3
 4 subnet 192.168.0.0 netmask 255.255.255.0 {  //要分配的网段、子网掩码
 5
 6 # --- default gateway
 7         option routers                  192.168.0.1;  //路由器ip地址
 8         option subnet-mask              255.255.255.0; //子网掩码
 9
10         option nis-domain               "domain.org";//nis服务器域名现在已经不使用nis服务器所以要注释
11         option domain-name              "domain.org";//为客户设置域名
12         option domain-name-servers      192.168.1.1;  //DNS服务器的ip地址
13
14         option time-offset              -18000; # Eastern Standard Time
15 #       option ntp-servers              192.168.1.1;
16 #       option netbios-name-servers     192.168.1.1;
17 # --- Selects point-to-point node (default is hybrid). Don't change this unl    ess
18 # -- you understand Netbios very well
19 #       option netbios-node-type 2;
20
21         range dynamic-bootp 192.168.0.128 192.168.0.254; //分配ip地址的范围
22         default-lease-time 21600;    //默认租约时间
23         max-lease-time 43200;       //最大租约时间
24
25         # we want the nameserver to appear at a fixed address
26         host ns {
27                 next-server marvin.redhat.com;
28                 hardware ethernet 12:34:56:78:AB:CD;
29                 fixed-address 207.175.42.254;
30         }
31 }

配置结束，启动服务

service dhcpd start
使用客户端测试，将ip获得方式改为自动获得，得到ip地址，完成！