DHCP服务器学习搭建练习

3212

一、实验拓扑

                                        RHEL5.9
--------------RHEL5.9(vmnet4)-------------------(vmnet4)
                                        Win7
实验前提条件
1. 所有试验机在相同网络
2. DHCP服务器有固定IP

实验操作步骤：
1. 设置ip
[iyunv@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
DEVICE=eth0
BOOTPROTO=none
ONBOOT=yes
HWADDR=00:0c:29:5d:a8:80
IPADDR=192.168.10.253
PREFIX=24
[iyunv@localhost ~]# cat /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=yes
HOSTNAME=dhcpser.tarena.com
GATEWAY=192.168.10.254
[iyunv@localhost ~]# cat /etc/resolv.conf
search tarena.com
nameserver 192.168.10.254
nameserver 202.106.0.20
[iyunv@localhost ~]# service network restart
[iyunv@localhost ~]# chkconfig network on
验证：
[iyunv@dhcpser ~]# ifconfig eth0
[iyunv@dhcpser ~]# route -n
[iyunv@dhcpser ~]# hostname
[iyunv@dhcpser ~]# cat /etc/resolv.conf
2. 安装软件包
[iyunv@dhcpser ~]# rpm -q dhcp        //
放入RHEL5.9 iso镜像
[iyunv@dhcpser ~]# cd /misc/cd/Server        //
[iyunv@dhcpser Server]# ls *dhcp*
[iyunv@dhcpser Server]# rpm -ivh dhcp-3(tab)
[iyunv@dhcpser Server]# rpm -q dhcp
dhcp-3.0.5-31.el5_8.1
3. 修改配置文件
ddns-update-style interim;
ignore client-updates;

subnet 192.168.0.0 netmask 255.255.255.0 {
        option routers                  192.168.0.1;
        option subnet-mask              255.255.255.0;

        option nis-domain               "domain.org";
        option domain-name              "domain.org";
        option domain-name-servers      192.168.1.1;

        option time-offset              -18000; # Eastern Standard Time

        range dynamic-bootp 192.168.0.128 192.168.0.254;
        default-lease-time 21600;
        max-lease-time 43200;
        host ns {
                next-server marvin.redhat.com;
                hardware ethernet 12:34:56:78:AB:CD;
                fixed-address 207.175.42.254;
        }
}


4. 启动服务
[iyunv@dhcpser ~]# rpm -ql dhcp | grep init.d
/etc/rc.d/init.d/dhcpd
/etc/rc.d/init.d/dhcrelay
[iyunv@dhcpser ~]# service dhcpd restart
[iyunv@dhcpser ~]# chkconfig dhcpd on
5. 验证
Linux：
        # dhclient -d eth0                临时获取
        # dhclient -r eth0                释放
Windows：
        cmd>ipconfig /release        释放ip
        cmd>ipconfig /renew        重新获取ip
周华飞(94DE8082C30E对话) 17:33:35
一、实验拓扑
                                           
----------------RHEL5.9_A----（vmnet1）----RHEL5.9_B-----------

RHEL5.9_A：        192.168.10.253/24
RHEL5.9_B：        192.168.10.20/24



实验总结：


    搭建DHCP服务器基本步骤和实验报告格式
    1.DHCP搭建环境准备
    a.启动三台虚拟机，一台用作DHCP服务器，一台Linux客户机，一台Win客户机，分别取名DHCP.Server.Tarena.com   LinuxClient WINClient
   b.为服务器配置IP 设置 设置配置文件  #vim  /etc/sysconfig/network  写网关
          /etc/sysconfig/network-scripts/ifcfg-eth0
     DEVICE=eth0
     BOOTPROTO=
  c.启动网关
     #server network restart   //开启服务
     #chkconfig network  //确保随启动自启动
  2.安装软件
     #yum -y install dhcp
   3.dhcp 主要配置文件 /etc/dhcp.conf
   /usr/share/doc/dhcp-*/dhcpd.sample
   执行程序：/usr/sbin/dhcpd
   4.服务脚本   /etc/init.d/dhcpd
   5.执行参数配置  /etc/sysconfig/dhcpd