Centos6.5搭建dhcpd服务

 dhcpd动态获取ip地址,对于小型局域网很便利的。在不大的网络社会静态ip也是不错的!

环境  

centos6.5  10.10.24.1 (dns-server)  

winxp sp3         

(client)   网段 10.10.24.0/24

01、设置主机名

hostname dns.mvpbang.com

vim /etc/sysconfig/network

HOSTNAME=dns.mvpbang.com

/etc/hosts 10.10.24.1  dns.mvpbang.com   #设置主机名解析

02、配置静态IP(dns-server)

nm-connection-editor   #图形化配置IP信息

[root@dns ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth1

HWADDR=00:0C:29:85:49:C5  //max地址

TYPE=Ethernet

BOOTPROTO=static    //静态ip

IPADDR=10.10.24.1

PREFIX=24

GATEWAY=255.255.255.0

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

IPV6INIT=no NAME=eth1

UUID=e62aaf9b-6c40-4bcc-9afc-ce4dd9bcbfce

ONBOOT=yes    //开机自动连接

LAST_CONNECT=1492955485

 

service network restart   #重启下网络服务

ip a/ifconfig

03、安装dhcpd

https://centos.pkgs.org/6/centos-x86_64/dhcp-4.1.1-53.P1.el6.centos.x86_64.rpm.html

https://centos.pkgs.org/6/centos-x86_64/dhcp-common-4.1.1-53.P1.el6.centos.x86_64.rpm.html

 

dhcp-4.1.1-53.P1.el6.centos.x86_64.rpm

dhcp-common-4.1.1-53.P1.el6.centos.x86_64.rpm

rpm -ivh dhcp*

 

rpm -qa  dhcp

/etc/dhcp/dhcpd.conf    #默认配置信息

/usr/share/doc/dhcp-4.1.1

/var/lib/dhcpd/dhcpd.leases  #记录了dhcp客户端的信息

 

#配置参数意义

vim /etc/dhcp/dhcpd.conf

#支持的dhcp动态更新方式(non:不支持;interim:互动更新模式;ad-hoc:特殊更新模式)

ddns-update-style interim; 

#ignore client-updates;   #忽略客户端更新

#subnet<子网络号> netmask <子网掩码>

subnet 10.10.24.0 netmask 255.255.255.0

{  

        #指定地址池,10.10.24.100~10.10.24.120范围之内的IP地址动态分配给客户机        

        range 10.10.24.100 10.10.24.120;

        option routers 10.10.24.254;                    #客户端默认网关   

        option subnet-mask 255.255.255.0;         #指定客户端子网掩码

        option domain-name "dns.mvpbang.com";       #指定DNS后缀        

        option domain-name-servers 10.10.24.1;        #DNS服务器地址        

         option broadcast-address 10.10.24.255;   #指定广播地址

        default-lease-time 86400; #指定默认租约时间,单位是秒   默认1天        

        max-lease-time 172800;    #指定最长租赁时间,单位是秒

       #为网络适配器的物理地址为00:0C:29:23:F5:A2的主机保留指定IP地址或者是打印机        

       host pc1 {                

       hardware ethernet 00:0C:29:D4:E7:58;                

       fixed-address 192.168.1.50;        

        }

}

 

错误:

tail -f /var/log/message

启动服务时报错 message Can't chown new lease file: Operation not permitted 服务无法正常启动,

解决:

vim /etc/rc.d/init.d/dhcpd

user=dhcpd

group=dhcpd

改为

user=root

group=root

 

#重启dhcpd服务

service dhcpd restart

 

#查看客户端获取ip

[root@dns ~]# tail -f /var/lib/dhcpd/dhcpd.leases

lease 10.10.24.100 {   starts 0 2017/04/23 16:11:09;   ends 1 2017/04/24 16:11:09;   cltt 0 2017/04/23 16:11:09;   binding state active;   next binding state free;   hardware ethernet 00:0c:29:69:5d:52;   uid "\001\000\014)i]R";   client-hostname "PC7183-20140621"; }

 

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