1.安装 snmp服务
[root@localhost] yum install -y net-snmp net-snmp-utils
2.配置snmp服务
第一步：
（yum安装snmpd的配置文件为/etc/snmp/snmpd.conf ，一份非常详细的文档，先备份一份snmpd.conf）
[root@localhost] mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.bak
3.运行snmp服务
[root@localhost] service snmpd start
Starting snmpd: [ OK ]
4.设置成开机自动运行snmpd服务
[root@localhost] chkconfig snmpd on
[root@localhost] chkconfig –list|grep snmpd
snmpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off
SNMP报错
创建SNMP – Interface Statistics报错，如下：
Created graph: db-m2-slave-2 - Traffic - |query_ifName|
ERROR: no Data Source associated. Check Template
[root@squid-2 html]# snmpwalk -c public -v 2c 10.254.3.73 ifHCInOctets
IF-MIB::ifHCInOctets = No more variables left in this MIB View (It is past the end of the MIB tree)
[root@squid-2 html]# snmpwalk -c public -v 2c 10.254.3.73 if
IF-MIB::ifTable = No Such Object available on this agent at this OID
[root@squid-2 html]# snmpwalk -c public -v 2c 10.254.3.73 if
IF-MIB::ifTable = No more variables left in this MIB View (It is past the end of the MIB tree)
解决方法
在snmpd.conf配置文件里面，查找以下字段：
## incl/excl subtree mask
#view all included .1 80
将该行前面的"#"去掉.
之后重启snmpd服务解决。
原文：http://www.cnblogs.com/smallcoderhujin/p/3785731.html