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rhel5.8和rhel6.3下开启snmp
一、环境说明
操作系统：rhel5.9_x86_64
本端机器：a2（10.0.0.13）
远端机器：a3（10.0.0.14）
二、部署过程
[root@a2 ~]# yum -y install net-snmp [root@a2 ~]# cd /etc/snmp [root@a2 snmp]# ls snmpd.conf [root@a2 snmp]# ls snmpd.conf [root@a2 snmp]# cp snmpd.conf snmpd.conf.bak [root@a2 snmp]# vim snmpd.conf a、更改团体名（将public给为实际需要的） # sec.name source community com2sec notConfigUser default public b、更改权限设置 # group context sec.model sec.level prefix read write notif access notConfigGroup "" any noauth exact systemview none none 将“systemview”改为“all” c、注销语句 #view all included .1 80 view all included .1 80
三、测试snmp启用情况
a、开启snmp服务 [root@a2 snmp]# /etc/init.d/snmpd restart [root@a2 snmp]# chkconfig snmpd on [root@a2 snmp]# chkconfig --list snmpd snmpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off b、检查snmp的端口是否开放 [root@a2 snmp]# netstat -tunlp | grep 161 udp 0 0 0.0.0.0:161 0.0.0.0:* 3731/snmpd c、本地测试snmp数据 [root@a2 ~]# snmpwalk -v 2c -c public localhost system 测试结果如下所示： SNMPv2-MIB::sysDescr.0 = STRING: Linux a2.example.com 2.6.18-348.el5 #1 SMP Wed Nov 28 21:22:00 EST 2012 x86_64 SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (161952) 0:26:59.52 SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf) SNMPv2-MIB::sysName.0 = STRING: a2.example.com SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf) SNMPv2-MIB::sysORLastChange.0 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORID.1 = OID: SNMPv2-MIB::snmpMIB SNMPv2-MIB::sysORID.2 = OID: TCP-MIB::tcpMIB SNMPv2-MIB::sysORID.3 = OID: IP-MIB::ip SNMPv2-MIB::sysORID.4 = OID: UDP-MIB::udpMIB SNMPv2-MIB::sysORID.5 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup SNMPv2-MIB::sysORID.6 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance SNMPv2-MIB::sysORID.7 = OID: SNMP-MPD-MIB::snmpMPDCompliance SNMPv2-MIB::sysORID.8 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance SNMPv2-MIB::sysORDescr.1 = STRING: The MIB module for SNMPv2 entities SNMPv2-MIB::sysORDescr.2 = STRING: The MIB module for managing TCP implementations SNMPv2-MIB::sysORDescr.3 = STRING: The MIB module for managing IP and ICMP implementations SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for managing UDP implementations SNMPv2-MIB::sysORDescr.5 = STRING: View-based Access Control Model for SNMP. SNMPv2-MIB::sysORDescr.6 = STRING: The SNMP Management Architecture MIB. SNMPv2-MIB::sysORDescr.7 = STRING: The MIB for Message Processing and Dispatching. SNMPv2-MIB::sysORDescr.8 = STRING: The management information definitions for the SNMP User-based Security Model. SNMPv2-MIB::sysORUpTime.1 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.2 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.3 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.4 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.5 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.6 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.7 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.8 = Timeticks: (0) 0:00:00.00 d、远端测试snmp [root@a3 ~]# snmpwalk -v 2c -c public 10.0.0.13 system SNMPv2-MIB::sysDescr.0 = STRING: Linux a2.example.com 2.6.18-348.el5 #1 SMP Wed Nov 28 21:22:00 EST 2012 x86_64 SNMPv2-MIB::sysObjectID.0 = OID: NET-SNMP-MIB::netSnmpAgentOIDs.10 DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (45700) 0:07:37.00 SNMPv2-MIB::sysContact.0 = STRING: Root <root@localhost> (configure /etc/snmp/snmp.local.conf) SNMPv2-MIB::sysName.0 = STRING: a2.example.com SNMPv2-MIB::sysLocation.0 = STRING: Unknown (edit /etc/snmp/snmpd.conf) SNMPv2-MIB::sysORLastChange.0 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORID.1 = OID: SNMPv2-MIB::snmpMIB SNMPv2-MIB::sysORID.2 = OID: TCP-MIB::tcpMIB SNMPv2-MIB::sysORID.3 = OID: IP-MIB::ip SNMPv2-MIB::sysORID.4 = OID: UDP-MIB::udpMIB SNMPv2-MIB::sysORID.5 = OID: SNMP-VIEW-BASED-ACM-MIB::vacmBasicGroup SNMPv2-MIB::sysORID.6 = OID: SNMP-FRAMEWORK-MIB::snmpFrameworkMIBCompliance SNMPv2-MIB::sysORID.7 = OID: SNMP-MPD-MIB::snmpMPDCompliance SNMPv2-MIB::sysORID.8 = OID: SNMP-USER-BASED-SM-MIB::usmMIBCompliance SNMPv2-MIB::sysORDescr.1 = STRING: The MIB module for SNMPv2 entities SNMPv2-MIB::sysORDescr.2 = STRING: The MIB module for managing TCP implementations SNMPv2-MIB::sysORDescr.3 = STRING: The MIB module for managing IP and ICMP implementations SNMPv2-MIB::sysORDescr.4 = STRING: The MIB module for managing UDP implementations SNMPv2-MIB::sysORDescr.5 = STRING: View-based Access Control Model for SNMP. SNMPv2-MIB::sysORDescr.6 = STRING: The SNMP Management Architecture MIB. SNMPv2-MIB::sysORDescr.7 = STRING: The MIB for Message Processing and Dispatching. SNMPv2-MIB::sysORDescr.8 = STRING: The management information definitions for the SNMP User-based Security Model. SNMPv2-MIB::sysORUpTime.1 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.2 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.3 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.4 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.5 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.6 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.7 = Timeticks: (0) 0:00:00.00 SNMPv2-MIB::sysORUpTime.8 = Timeticks: (0) 0:00:00.00
四、注意事项
a、关闭防火墙和selinux（避免一些不必要的折腾，建议情况iptables）
b、如果非要开启的话，建议开放161端口，否则测试是通不过的
iptables -A RH-Firewall-1-INPUT -p udp -m state --state NEW -m udp --dport 161 -j ACCEP
c、配置完成后，重启下iptables
本文出自 “冰冻vs西瓜” 博客，请务必保留此出处http://molewan.blog.51cto.com/287340/1891386
rhel5.8和rhel6.3下开启snmp
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