Linux DHCP服务
服务端配置
1.网络环境准备
网卡
网卡配置文件:
DEVICE=eth1
HWADDR=00:0C:29:b2:36:2f
TYPE=Ethernet
UUID=7d158d35-0371-4592-a1ef-61aa57e32344
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static //改为静态的IP
IPADDR=192.168.11.4
NETMASK=255.255.255.0
关闭 selinux
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config
setenforce 0
关闭 iptables
/etc/init.d/iptables stop
chkconfig iptables off
2.dhcp服务
安装
yum -y install dhcp
dhcp配置文件
#
# DHCP Server Configuration file.
# see /usr/share/doc/dhcp*/dhcpd.conf.sample
# see 'man 5 dhcpd.conf'
#
# 全局配置
# 设置客户端域名
option domain-name "hotoem";
# 设置解析域名服务器
option domain-name-servers 114.114.114.114 ,223.5.5.5;
# 默认租约时间
default-lease-time 600;
#最大租约时间
max-lease-time 7200;
# 不要ddns设定
ddns-update-style none;
# Use this to send dhcp log messages to a different log file (you also
# have to hack syslog.conf to complete the redirection).
log-facility local7;
# 设置DHCP子网段
subnet 192.168.11.0 netmask 255.255.255.0 {
range 192.168.11.80 192.168.11.180;
option routers 192.168.31.1;
}
# 配置静态客户端
################ 设备静态IP地址 ###################
# 黑白打印机
host hb_print {
hardware ethernet 00:26:73:0e:d4:79;
fixed-address 192.168.31.77;
}
# 彩色打印机
host cs_print {
hardware ethernet ac:16:2d:3a:40:ac;
fixed-address 192.168.31.78;
}
vim /etc/sysconfig/dhcpd 设置dhcp监听网卡
# Command line options here
DHCPDARGS=eth1
service dhcpd start
注： 启动日志信息可以查看 /var/log/message
租约信息可查看 /var/lib/dhcpd/dhcpd.leases
静态分配的地址最好不在dhcp分配地址范围内（除非是长期开机并手动配置了IP地址）否则会出现IP冲突（这是有教训的）
客户端配置
网卡配置信息改为dhcp,重启
