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#yum install net-snmp
#vi /etc/snmp/snmpd.conf
==================

#com2sec notConfigUser default public
com2sec mrtg 10.1.4.0/24 tmusnmp
com2sec local localhost public

group mrtg-group any mrtg
group MyRWGroup any local

view     all    included   .1

access mrtg-group "" any noauth prefix all all all
access MyRWGroup "" any noauth prefix all all all
===================

#vi /etc/sysconfig/iptables 
//這是開放讓其他Server來讀他的SNMP資料
===================
-A INPUT -s 10.1.4.6/32 -p udp -m udp --dport 161 -j ACCEPT
===================

#/sbin/chkconfig --add snmpd  //設定開機時啟動SNMPD
#/sbin/chkconfig snmpd on
#/sbin/chkconfig --list