服务器：PC1
客户端：PC2
1、查看PC2客户机MAC地址
[root@PC2 network-scripts]# ifconfig | head -n 5 eno16777728: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.10.100 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::20c:29ff:fe25:bb3e prefixlen 64 scopeid 0x20<link> ether 00:0c:29:25:bb:3e txqueuelen 1000 (Ethernet) RX packets 337 bytes 46180 (45.0 KiB)
2、在服务器中修改dhcp服务配置文件
[root@PC1 ~]# vim /etc/dhcp/dhcpd.conf ddns-update-style none; ignore client-updates; subnet 192.168.10.0 netmask 255.255.255.0 { range 192.168.10.100 192.168.10.200; option subnet-mask 255.255.255.0; option routers 192.168.10.1; option domain-name "linuxprobe.com"; option domain-name-servers 192.168.10.1; default-lease-time 21600; max-lease-time 43200; host PC2 { hardware ethernet 00:0c:29:25:bb:3e; fixed-address 192.168.10.188; }
}
3、 查看PC2客户机IP
[root@PC2 network-scripts]# ifconfig | head -n 3 eno16777728: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.10.100 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::20c:29ff:fe25:bb3e prefixlen 64 scopeid 0x20<link>
4、在PC1服务器主机中重启DHCP服务，在PC2中重启网卡服务，检查PC2主机IP是否改变
[root@PC1 ~]# systemctl restart dhcpd [root@PC1 ~]# systemctl status dhcpd dhcpd.service - DHCPv4 Server Daemon Loaded: loaded (/usr/lib/systemd/system/dhcpd.service; enabled) Active: active (running) since Sun 2020-12-13 18:22:20 CST; 10s ago Docs: man:dhcpd(8) man:dhcpd.conf(5) Main PID: 34170 (dhcpd) CGroup: /system.slice/dhcpd.service └─34170 /usr/sbin/dhcpd -f -cf /etc/dhcp/dhcpd.conf -user dhcpd -group dhcpd --no-pid [root@PC2 network-scripts]# systemctl restart network [root@PC2 network-scripts]# ifconfig | head -n 5 eno16777728: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.10.188 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::20c:29ff:fe25:bb3e prefixlen 64 scopeid 0x20<link> ether 00:0c:29:25:bb:3e txqueuelen 1000 (Ethernet) RX packets 355 bytes 48547 (47.4 KiB)
以上实验实现了给PC2客户机分配固定IP192.168.10.188的服务。