CentOS5 安装配置 SNMP 服务
1.通过 yum 安装

yum install net-snmp net-snmp-utils

2.创建配置文件,并且添加用户

snmpconf

输出：

The following installed configuration files were found:   1:  /etc/snmp/snmpd.conf   2:  /usr/share/snmp/snmpd.confWould you like me to read them in?  Their content will be merged with theoutput files created by this session.Valid answer examples: "all", "none","3","1,2,5"Read in which (default = all): noneI can create the following types of configuration files for you.Select the file type you wish to create:(you can create more than one as you run this program)   1:  snmpd.conf   2:  snmp.conf   3:  snmptrapd.confOther options: quitSelect File: 1The configuration information which can be put into snmpd.conf is dividedinto sections.  Select a configuration section for snmpd.confthat you wish to create:   1:  Access Control Setup   2:  Extending the Agent   3:  Agent Operating Mode   4:  System Information Setup   5:  Trap Destinations   6:  Monitor Various Aspects of the Running HostOther options: finishedSelect section: 1Section: Access Control SetupDescription:  This section defines who is allowed to talk to your running  snmp agent.Select from:   1:  a SNMPv3 read-write user   2:  a SNMPv3 read-only user   3:  a SNMPv1/SNMPv2c read-only access community name   4:  a SNMPv1/SNMPv2c read-write access community nameOther options: finished, listSelect section:

最后一项根据你自己的需要选择

3.创建用户（SNMPv3）
在 /var/net-snmp/snmpd.conf(如果没有，先启动snmp服务

 /etc/init.d/snmpd start

)
中添加如下行，用户名密码根据你自己情况修改

createUser user1 MD5 user1password

4.重启动服务

 /etc/init.d/snmpd stop

 /etc/init.d/snmpd start

5.打开防火墙端口

iptables -A INPUT -i eth0 -p udp -s [允许访问的ip地址] --dport 161 -j ACCEPT

5.监控
http://blog.jiankongbao.com/?p=160