1. ubuntu :

apt-get install snmp snmpd

vim /etc/default/snmpd  //将此配置文件中127.0.0.1 删掉。

/etc/init.d/snmpd restart

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2. redhat/centos

yum install -y net-snmp net-snmp-utils

查看已安装的版本 snmpd -v 

vi /etc/snmp/snmpd.conf

更改 com2sec notConfigUser default public

改为 com2sec notConfigUser 监控端IP public

更改access notConfigGroup "" any noauth exact systemview none none

改为access notConfigGroup "" any noauth exact all none none

将 #view all included .1 80 前面的 # 注释去掉

service snmpd restart ------>端口:161