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DHCP服务器IP：192.168.1.10
一，安装dhcp
[root@localhost ~]# yum install dhcp Loaded plugins: product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. cdrom | 4.1 kB 00:00:00 Resolving Dependencies --> Running transaction check ---> Package dhcp.x86_64 12:4.2.5-27.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ============================================================================================= Package Arch Version Repository Size ============================================================================================= Installing: dhcp x86_64 12:4.2.5-27.el7 cdrom 506 k Transaction Summary ============================================================================================= Install 1 Package Total download size: 506 k Installed size: 1.4 M Is this ok [y/d/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : 12:dhcp-4.2.5-27.el7.x86_64 1/1 Verifying : 12:dhcp-4.2.5-27.el7.x86_64 1/1 Installed: dhcp.x86_64 12:4.2.5-27.el7 Complete!
二，编辑dhcpd配置文件
[root@localhost ~]# !v vim /etc/dhcp/dhcpd.conf # # DHCP Server Configuration file. # see /usr/share/doc/dhcp*/dhcpd.conf.example # see dhcpd.conf(5) man page # ddns-update-style none; ignore client-updates; subnet 192.168.1.0 netmask 255.255.255.0 { range 192.168.1.50 192.168.1.60; option subnet-mask 255.255.255.0; option routers 192.168.1.1; option domain-name "cnblog.com"; option domain-name-servers 192.168.1.1; default-lease-time 21600; max-lease-time 43200; }
三，通过一台客户机验证DHCP服务器是否配置成功
更改客户机网卡配置文件
[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eno16777736 HWADDR=00:0C:29:51:55:DB TYPE=Ethernet BOOTPROTO=dhcp //客户机需要改成"dhcp" DEFROUTE=yes PEERDNS=no PEERROUTES=no IPV4_FAILURE_FATAL=no NAME=eno16777736 UUID=0bf4eae0-e5b4-4dab-b42d-8ae4a90adee3 ONBOOT=yes
重启网卡，验证是否通过DHCP方式获取到地址
[root@localhost ~]# systemctl restart network [root@localhost ~]# ifconfig eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.1.50 netmask 255.255.255.0 broadcast 192.168.1.255 inet6 fe80::20c:29ff:fe51:55db prefixlen 64 scopeid 0x20<link> ether 00:0c:29:51:55:db txqueuelen 1000 (Ethernet) RX packets 88 bytes 9565 (9.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 112 bytes 16255 (15.8 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 4 bytes 336 (336.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 4 bytes 336 (336.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
四，如果想给主机名为"user1"主机分配固定IP地址"192.168.1.54"
[root@localhost ~]# !v vim /etc/dhcp/dhcpd.conf # # DHCP Server Configuration file. # see /usr/share/doc/dhcp*/dhcpd.conf.example # see dhcpd.conf(5) man page # ddns-update-style none; ignore client-updates; subnet 192.168.1.0 netmask 255.255.255.0 { range 192.168.1.50 192.168.1.60; option subnet-mask 255.255.255.0; option routers 192.168.1.1; option domain-name "feng.xyz"; option domain-name-servers 192.168.1.1; default-lease-time 21600; max-lease-time 43200; host user1 { //"user1"为需要固定IP的主机的主机名("hostname") hardware ethernet 00:0c:29:51:55:db; //mac地址 fixed-address 192.168.1.54; //固定的IP地址 } }
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原文地址：http://www.cnblogs.com/fishhh/p/5189569.html
