zabbix自定义SNMP监控项

　　1、snmp配置自定义OID

/etc/snmp/snmpd.conf

com2sec notConfigUser  default      public
group   notConfigGroup v1           notConfigUser
group   notConfigGroup v2c          notConfigUser
view    systemview    included   .1
access  notConfigGroup ""      any       noauth    exact  systemview none none
syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
dontLogTCPWrappersConnects yes
extend .1.3.6.1.4.1.2021.50  zabbix_agent /bin/bash /root/zabbix_check.sh
extend .1.3.6.1.4.1.2021.51  hadoop_QuorumPeerMain_check /bin/bash /root/hadoop_QuorumPeerMain_check.sh

添加OID内容：

extend .1.3.6.1.4.1.2021.50  zabbix_agent /root/zabbix_check.sh

extend：扩展OID

.1.3.6.1.4.1.2021.50：.1.3.6.1.4.1.2021不可变，表示用户自定义OID前缀，50用户自定义

zabbix_agent：标示、名称。用于区分不同扩展项目

/bin/bash /root/zabbix_check.sh：运行脚本，脚本的绝对路径

2、zabbix_check.sh内容

#!/bin/bash
echo `netstat -tnlp|grep -v tcp6|grep zabbix_agent|wc -l`

2、zabbix服务端查看

snmpwalk -v 2c -c public 192.168.8.47 .1.3.6.1.4.1.2021.50

内容如下：

UCD-SNMP-MIB::ucdavis.50.1.0 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.50.2.1.2.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = STRING: "/bin/bash"
UCD-SNMP-MIB::ucdavis.50.2.1.3.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = STRING: "/home/monitor/zabbix/app_connection_db.sh"
UCD-SNMP-MIB::ucdavis.50.2.1.4.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = ""
UCD-SNMP-MIB::ucdavis.50.2.1.5.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = INTEGER: 5
UCD-SNMP-MIB::ucdavis.50.2.1.6.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.50.2.1.7.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.50.2.1.20.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = INTEGER: 4
UCD-SNMP-MIB::ucdavis.50.2.1.21.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.50.3.1.1.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = STRING: "600"
UCD-SNMP-MIB::ucdavis.50.3.1.2.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = STRING: "600"
UCD-SNMP-MIB::ucdavis.50.3.1.3.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = INTEGER: 1
UCD-SNMP-MIB::ucdavis.50.3.1.4.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98 = INTEGER: 0
UCD-SNMP-MIB::ucdavis.50.4.1.2.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98.1 = STRING: "600"

完整UUID：

ucdavis.50.3.1.2.17.97.112.112.95.99.111.110.110.101.99.116.105.111.110.95.100.98