DHCP简单配置（1）

RHEL5 基本网络配置
一、
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 通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）

二、DHCP简单配置
1、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： [确定]
[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、可以指定用户获取的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[/b]
# 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-V3.0.5-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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