动态主机配置协议（Dynamic Host Configuration Protocol ，DHCP）是一个局域网的网络协议，使用udp协议工作，主要有两个用途：给内部网络或网络服务供应商自动分配IP地址；给用户或者内部网络管理员作为对所有计算机作*管理的手段。端口号：server端 67 ，client端 68
服务器环境：
操作系统：
Red Hat Enterprise Linux Server 5.4 内核版本： 2.6.18-164.el5
需要的软件：
dhcp-3.0.5-21.el5.i386.rpm
网络参数：
IP： 192.168.1.178/28 netmask：255.255.255.240 Gateway：192.168.1.190
准备工作：
[root@localhost ~]# mkdir /mnt/cdrom
[root@localhost ~]# mount /dev/cdrom /mnt/cdrom
mount: block device /dev/cdrom is write-protected, mounting read-only
[root@localhost ~]# cd /mnt/cdrom/Server/
[root@localhost Server]# rpm -ivh dhcp-3.0.5-21.el5.i386.rpm
warning: dhcp-3.0.5-21.el5.i386.rpm: Header V3 DSA signature: NOKEY, key ID 37017186
Preparing... ########################################### [100%]
1:dhcp ########################################### [100%]
[root@localhost Server]# vim /etc/dhcpd.conf
subnet 192.168.1.64 netmask 255.255.255.224 {
# --- default gateway
option routers 192.168.1.94;
option subnet-mask 255.255.255.224;
option nis-domain "domain.org";
option domain-name "domain.org";
option domain-name-servers 192.168.1.177;
option time-offset -18000; # Eastern Standard Time
# option ntp-servers 192.168.1.1;
# option netbios-name-servers 192.168.1.1;
# -- you understand Netbios very well
# option netbios-node-type 2;
range dynamic-bootp 192.168.1.65 192.168.1.92;
default-lease-time 21600;
max-lease-time 43200;
# we want the nameserver to appear at a fixed address
host vlan10 {
next-server marvin.redhat.com;
hardware ethernet 12:34:56:78:AB:CD;
fixed-address 207.175.42.254;
}
}
# DHCP Server Configuration file.
# see /usr/share/doc/dhcp*/dhcpd.conf.sample
subnet 192.168.1.0 netmask 255.255.255.192 {
# --- default gateway
option routers 192.168.1.62;
option subnet-mask 255.255.255.192;
option domain-name "domain.org";
option domain-name-servers 192.168.1.177;
option time-offset -18000; # Eastern Standard Time
range dynamic-bootp 192.168.1.1 192.168.1.60;
default-lease-time 21600;
max-lease-time 43200;
# we want the nameserver to appear at a fixed address
host vlan20 {
next-server marvin.redhat.com;
hardware ethernet 12:34:56:78:AB:CD;
fixed-address 207.175.42.254;
}
}
subnet 192.168.1.96 netmask 255.255.255.224 {
# --- default gateway
option routers 192.168.1.126;
option subnet-mask 255.255.255.224;
option domain-name "domain.org";
option domain-name-servers 192.168.1.177;
option time-offset -18000; # Eastern Standard Time
range dynamic-bootp 192.168.1.97 192.168.1.124;
default-lease-time 21600;
max-lease-time 43200;
# we want the nameserver to appear at a fixed address
host vlan30 {
next-server marvin.redhat.com;
hardware ethernet 12:34:56:78:AB:CD;
fixed-address 207.175.42.254;
}
}
subnet 192.168.1.160 netmask 255.255.255.240 {
# --- default gateway
option routers 192.168.1.174;
option subnet-mask 255.255.255.240;
option domain-name "domain.org";
option domain-name-servers 192.168.1.177;
option time-offset -18000; # Eastern Standard Time
range dynamic-bootp 192.168.1.161 192.168.1.172;
default-lease-time 21600;
max-lease-time 43200;
# we want the nameserver to appear at a fixed address
host vlan40 {
next-server marvin.redhat.com;
hardware ethernet 12:34:56:78:AB:CD;
fixed-address 207.175.42.254;
}
}
subnet 192.168.1.128 netmask 255.255.255.224 {
# --- default gateway
option routers 192.168.1.158;
option subnet-mask 255.255.255.224;
option domain-name "domain.org";
option domain-name-servers 192.168.1.177;
option time-offset -18000; # Eastern Standard Time
range dynamic-bootp 192.168.1.129 192.168.1.156;
default-lease-time 21600;
max-lease-time 43200;
# we want the nameserver to appear at a fixed address
host vlan50 {
next-server marvin.redhat.com;
hardware ethernet 12:34:56:78:AB:CD;
fixed-address 207.175.42.254;
}
}
subnet 192.168.1.176 netmask 255.255.255.240
{ }
SNMP代理配置：
安装net-snmp软件，使该主机成为agent。由于安装需要依赖lm_sensors软件，所以使用yum工具解决依赖关系
[root@localhost ~]# vim /etc/yum.repos.d/rhel-debuginfo.repo
[root@localhost ~]# yum install net-snmp -y
Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package net-snmp.i386 1:5.3.2.2-7.el5 set to be updated
--> Processing Dependency: libsensors.so.3 for package: net-snmp
--> Running transaction check
---> Package lm_sensors.i386 0:2.10.7-4.el5 set to be updated
--> Finished Dependency Resolution
Installed:
net-snmp.i386 1:5.3.2.2-7.el5
Dependency Installed:
lm_sensors.i386 0:2.10.7-4.el5
Complete!
[root@localhost ~]# vim /etc/snmp/snmpd.conf
49 rocommunity public
50 rwcommunity private
77 com2sec mynetwork 192.168.1.193/28 public
[root@localhost ~]# service snmpd start
Starting snmpd: [ OK ]
[root@localhost ~]# chkconfig snmpd on
[root@localhost ~]# netstat -tupln|grep snmp
tcp 0 0 127.0.0.1:199 0.0.0.0:* LISTEN 28703/snmpd
udp 0 0 0.0.0.0:161 0.0.0.0:* 28703/snmpd
日志转发：
编辑系统日志配置文件/etc/syslog.conf，将需要转发的日志发送到指定的日志服务器上。咋日志类型后面加 @日志服务器的地址 即可将日志发送到指定的日志服务器上。
[root@localhost ~]# vim /etc/syslog.conf
7 *.info;mail.none;authpriv.none;cron.none @192.168.1.194
本文转自 gjp0731 51CTO博客，原文链接:http://blog.51cto.com/guojiping/1157472