为了防止路由器的dhcp服务干扰实验，我们2台机器分别新加了1快网卡. vmnet4
dhcp安装
[[email protected] ~]# yum -y install dhcp
将配置文件放在/etc/dhcp下
[[email protected] ~]# cp /usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample /etc/dhcp/dhcpd.conf
设置开机自启动
[[email protected] ~]# chkconfig dhcpd on
修改配置文件
[[email protected] ~]# vim /etc/dhcp/dhcpd.conf
subnet 192.168.2.0 netmask 255.255.255.0{ 网段
range 192.168.2.100 192.168.2.200; 范围
option domain-name-servers 114.114.114.114; dns
option domain-name "ygy123.cn"; 域名
option routers 192.168.2.1; 网关
option broadcast-address 192.168.2.255; 广播
default-lease-time 600; 租期
max-lease-time 7200; 最长租期
host ygy130{ 指定服务器主机
hardware ethernet 00:0C:29:59:B1:B2; 绑定客户机地址
fixed-address 192.168.2.110; 客户机的ip
}
}
启动
[[email protected] ~]# service dhcpd restart
Shutting down dhcpd: [ OK ]
Starting dhcpd: [ OK ]
要关闭防火墙，否则其他机器不能获得服务。
注意，这里多网卡，要设置路由才能上网。
[[email protected] ~]# route add default gw 192.168.1.1 eth0
[[email protected] ~]# route add default gw 192.168.8.1 eth1
[[email protected] ~]# route add -net 192.168.8.0/24 gw 192.168.1.1 eth0
这样就能上网了。
重启失效。
时间同步：ntpdate time.windows.com
[[email protected] ~]# date +" %F"
2016-09-25
修改时间
[[email protected] ~]# date -s "2015-3-6 21:13"
Fri Mar 6 21:13:00 CST 2015
[[email protected] ~]# date
Fri Mar 6 21:13:03 CST 2015
[[email protected] ~]# hwclock -r
Sun 25 Sep 2016 11:59:48 PM CST -0.766794 seconds
[[email protected] ~]# hwclock -w
[[email protected] ~]# hwclock -r
Fri 06 Mar 2015 09:14:06 PM CST -0.329304 seconds
[[email protected] ~]# ntpdate time.windows.com
26 Sep 00:01:30 ntpdate[12406]: adjust time server 40.118.103.7 offset 0.040445 sec
[[email protected] ~]# date
Mon Sep 26 00:01:35 CST 2016