DHCP简单配置（1）

RHEL5 基本网络配置

1、

1 、RHEL5：如图1

（如图1）

2 、#hostname //查看当前主机的主机名：如图2

（如图2）

3 、#vi /etc/sysconfig/network-scripts/ifcfg-eth0 编辑指定网络接口配置文件：如图3

（如图3）

4 、#vi /etc/sysconfig/network 经过配置文件修改主机名：如图4

（如图4）

5 、#vi /etc/syconfig/i18n在终端字符界面修改其字体和中文字体大小：如图5

（如图5）

6 、挂载光盘：如图6

（如图6）

7 、查看OpenSSH是否安装：如图7

（如图7）

8 、 #vi /etc/hosts 设置本地 DNS 解析文件： 如图8

（如图8）

9 、 #vi /etc/resolv.conf 指定当前主机的 DNS 服务器，最多可指定三个： 如图9

（如图9）

10 、关闭iptables防火墙：如图10

（如图10）

2、DHCP简单配置

一、挂载并查询dhcp是否安装：

[root@dhcp ~]# mount /dev/hdc /mnt/dvd/

mount: block device /dev/hdc is write-protected, mounting read-only

[root@dhcp ~]# cd /mnt/dvd/Server/

[root@dhcp Server]# rpm -qa | grep dhcp

dhcpv6_client-0.10-33.el5

[root@dhcp Server]# ls -l dhcp*

-rw-r--r-- 110 root root 894361 2007-06-28 dhcp-3.0.5-7.el5.i386.rpm

-rw-r--r-- 125 root root 132573 2007-06-28 dhcp-devel-3.0.5-7.el5.i386.rpm

-rw-r--r-- 110 root root 218171 2007-01-18 dhcpv6-0.10-33.el5.i386.rpm

-rw-r--r-- 115 root root 80927 2007-01-18 dhcpv6_client-0.10-33.el5.i386.rpm

 

2 、安装 dhcp 并查询

[root@dhcp Server]# rpm -ivh --aid dhcp-3.0.5-7.el5.i386.rpm

warning: dhcp-3.0.5-7.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

Preparing... ########################################### [100%]

1:dhcp ########################################### [100%]

[root@dhcp Server]# rpm -ivh dhcp-devel-3.0.5-7.el5.i386.rpm

warning: dhcp-devel-3.0.5-7.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

Preparing... ########################################### [100%]

1:dhcp-devel ########################################### [100%]

[root@dhcp Server]# rpm -ivh dhcpv6-0.10-33.el5.i386.rpm

warning: dhcpv6-0.10-33.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186

Preparing... ########################################### [100%]

1:dhcpv6 ########################################### [100%]

[root@dhcp Server]# rpm -qa | grep dhcp

dhcp-devel-3.0.5-7.el5

dhcpv6-0.10-33.el5

dhcpv6_client-0.10-33.el5

dhcp-3.0.5-7.el5

 

3 、复制模板文件 dhcpd.conf.sample 到 /etc 目录下名为 dhcpd.conf

[root@dhcp Server]# cd /usr/share/doc/dhcp-3.0.5/

[root@dhcp dhcp-3.0.5]# ls

api+protocol draft-ietf-dhc-failover-07.txt RELNOTES rfc2485.txt

dhcpd.conf.sample IANA-arp-parameters rfc1542.txt rfc2489.txt

draft-ietf-dhc-authentication-14.txt ja_JP.eucJP rfc2131.txt rfc951.txt

draft-ietf-dhc-dhcp-dns-12.txt README rfc2132.txt

[root@dhcp dhcp-3.0.5]# cp dhcpd.conf.sample /etc/dhcpd.conf

cp：是否覆盖“/etc/dhcpd.conf”? y

[root@dhcp dhcp-3.0.5]# cd

 

4 、修改 /etc/dhcp.conf 内容，注意加黑字体是修改内容

[root@dhcp ~]# vim /etc/dhcpd.conf

ddns-update-style interim;

ignore client-updates;

subnet 10.2.11 .0 netmask 255.255.255.0 { （修改 10.2.11.0 网段）

# --- default gateway

option routers 10.2.11 .1; （修改网关）

option subnet-mask 255.255.255.0; （子网掩码）

option nis-domain "domain.org";

option domain-name " benet.com"; （ 修改域名）

option domain-name-servers 202.106.46.151; （设置 dns ）

option time-offset -18000; # Eastern Standard Time

# option ntp-servers 192.168.1.1;

# option netbios-name-servers 192.168.1.1;

# --- Selects point-to-point node (default is hybrid). Don't change this unless

# -- you understand Netbios very well

# option netbios-node-type 2;

range dynamic-bootp 10.2.11 .200 10.2.11.230; （获取 IP 地址网段）

default-lease-time 21600;

max-lease-time 43200;

# we want the nameserver to appear at a fixed address

host ns {

next-server marvin.redhat.com;

hardware ethernet 12:34:56:78:AB:CD;

fixed-address 207.175.42.254;

}

}

"/etc/dhcpd.conf" 31L, 844C 已写入

 

5 、启动 dhcpd 服务

[root@dhcp ~]# service dhcpd restart

关闭 dhcpd： [失败]

启动 dhcpd： [肯定]

[root@dhcp ~]# chkconfig --list dhcpd

dhcpd 0:关闭 1:关闭 2:关闭 3:关闭 4:关闭 5:关闭 6:关闭

[root@dhcp ~]# chkconfig --level 2345 dhcpd on

[root@dhcp ~]# chkconfig --list dhcpd

dhcpd 0:关闭 1:关闭 2:启用 3:启用 4:启用 5:启用 6:关闭

 

6 、客户机测试

 

7 、能够指定用户获取的 IP

# we want the nameserver to appear at a fixed address

host ns ( 修改主机名如： honglin) {

next-server marvin.redhat.com;

hardware ethernet 12:34:56:78:AB:CD; （修改 MAC 地址）

fixed-address 207.175.42.254; ( 修改 IP 如： 10.2.11 .229)

}

 

[root@dhcp ~]# cat  /var/lib/dhcpd/dhcpd.leases

# All times in this file are in UTC (GMT), not your local timezone.   This is

# not a bug, so please don't ask about it.   There is no portable way to

# store leases in the local timezone, so please don't request this as a

# feature.   If this is inconvenient or confusing to you, we sincerely

# apologize.   Seriously, though - don't ask.

# The format of this file is documented in the dhcpd.leases(5) manual page.

# This lease file was written by isc-dhcp-V 3.0.5 -RedHat

 

lease 10.2.11 .230 {

  starts 3 2009/11/18 08:41:43;

  ends 3 2009/11/18 14:41:43;

  tstp 3 2009/11/18 14:41:43;

  binding state active;

  next binding state free;

  hardware ethernet 00:24: 8c :15:97:28;

  uid "\001\000$\214\025\227(";

  client-hostname "PC-200910272235";

}

[root@dhcp ~]#

 

 

 

配置文件在附件里面：

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