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DHCP作业
(1)DHCP服务器的地址都是172.16.118.100+学号/24,
有效IP地址段为172.16.118.1172.16.118.254,
子网掩码是255.255.255.0,
网关为172.16.118.254。
(2)172.16.118.200172.16.118.253网段地址是服务器的固定地址。
(3)客户端可以使用的地址段为172.16.118.1~172.16.118.99,5
但172.16.118.88为保留地址,其中172.16.118.88保留给zhangsan。
(4)DNS服务器IP为8.8.8.8和61.128.128.68。
(5)客户机租用时间为2个小时。 每个人的IP地址和地址池随系统IP进行变化。
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| [root@lai18 html]# ifconfig ens33 ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 172.16.118.118 netmask 255.255.255.0 broadcast 172.16.118.255 inet6 fe80::cc92:1612:53f5:26dd prefixlen 64 scopeid 0x20<link> ether 00:0c:29:37:c8:db txqueuelen 1000 (Ethernet) RX packets 7452 bytes 710992 (694.3 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 5802 bytes 857597 (837.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ping -c 1 172.16.118.118 [root@lai18 html]# arp -n Address HWtype HWaddress Flags Mask Iface 172.16.118.254 (incomplete) ens33 172.16.118.188 ether 02:00:4c:4f:4f:50 C ens33
rpm -q dhcp yum -y install dhcp cp -p /etc/dhcp/dhcpd.conf /etc/dhcp/dhcpd.conf.bak cp /usr/share/doc/dhcp-4.2.5/dhcpd.conf.example /etc/dhcp/dhcpd.conf cp:是否覆盖"/etc/dhcp/dhcpd.conf"? y vi /etc/dhcp/dhcpd.conf
ddns-update-style none; log-facility local7; subnet 172.16.118. 0 netmask 255.255.255.0 { range 172.16.118.1 172.16.118.87; range 172.16.118.89 172.16.118.99; range 172.16.118.100 172.16.118.254; option subnet-mask 255.255.255.0; option routers 172.16.118.254; option domain-name "cqipc.eud"; option domain-name-servers 8.8.8.8,61.128.128.68; default-lease-time 600; max-lease-time 7200; } host zhangsan{ hardware ethernet 02:00:4c:4f:4f:50; fixed-address 172.16.118.88; }
systemctl restart dhcpd systemctl enable dhcpd cat /var/lib/dhcpd/dhcpd.leases
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做这一块的时候,感觉有点小问题