zabbix snmp自定義OID nginx監控實例（55）

爲何要自定義OID？

前面的文章咱們已經講過zabbix如何使用snmp監控服務器，可是他有一個很明顯的侷限性：只能監控定義好的OID項目，假如咱們想知道nginx進程是否在運行？在沒有zabbix agent的狀況下，咱們該怎麼作呢？接下來就用這個實力來說解自定義OID

 

確認SNMP OID是否存在

首先咱們須要找一個oid是否被系統暫用，好比.1.3.6.1.4.1.2021.5000

# snmpwalk -v 2c -c public www.ttlsa.com .1.3.6.1.4.1.2021.5000

UCD-SNMP-MIB::ucdavis.5000 = No Such Object available on this agent at this OID

如上說明不存在

增長自定SNMP OID

編寫腳本

# cat /root/scripts/check_nginx.sh

#!/bin/bash

nginxNum=`/bin/psaux | /bin/grepnginx |wc-l`

echo$nginxNum

 

修改配置

# vim /etc/snmp/snmpd.conf

extend .1.3.6.1.4.1.2021.5000  check_nginx /root/scripts/check_nginx.sh // 增長這一行

獲取snmp信息

如下獲取自定義的oid的全部數據，第一行即是咱們須要獲取的數據，那麼在zabbix中寫oid .1.3.6.1.4.1.2021.5000.4.1.2.11.99.104.101.99.107.95.110.103.105.110.120.1

# snmpwalk -v 1 -c public 173.219.255.122 .1.3.6.1.4.1.2021.5000

UCD-SNMP-MIB::ucdavis.5000.1.0 = INTEGER: 1

UCD-SNMP-MIB::ucdavis.5000.2.1.2.11.99.104.101.99.107.95.110.103.105.110.120 = STRING:"/root/scripts/check_nginx.sh"

UCD-SNMP-MIB::ucdavis.5000.2.1.3.11.99.104.101.99.107.95.110.103.105.110.120 =""

UCD-SNMP-MIB::ucdavis.5000.2.1.4.11.99.104.101.99.107.95.110.103.105.110.120 =""

UCD-SNMP-MIB::ucdavis.5000.2.1.5.11.99.104.101.99.107.95.110.103.105.110.120 = INTEGER: 5

UCD-SNMP-MIB::ucdavis.5000.2.1.6.11.99.104.101.99.107.95.110.103.105.110.120 = INTEGER: 1

UCD-SNMP-MIB::ucdavis.5000.2.1.7.11.99.104.101.99.107.95.110.103.105.110.120 = INTEGER: 1

UCD-SNMP-MIB::ucdavis.5000.2.1.20.11.99.104.101.99.107.95.110.103.105.110.120 = INTEGER: 4

UCD-SNMP-MIB::ucdavis.5000.2.1.21.11.99.104.101.99.107.95.110.103.105.110.120 = INTEGER: 1

UCD-SNMP-MIB::ucdavis.5000.3.1.1.11.99.104.101.99.107.95.110.103.105.110.120 = STRING:"6"

UCD-SNMP-MIB::ucdavis.5000.3.1.2.11.99.104.101.99.107.95.110.103.105.110.120 = STRING:"6"

UCD-SNMP-MIB::ucdavis.5000.3.1.3.11.99.104.101.99.107.95.110.103.105.110.120 = INTEGER: 1

UCD-SNMP-MIB::ucdavis.5000.3.1.4.11.99.104.101.99.107.95.110.103.105.110.120 = INTEGER: 0

UCD-SNMP-MIB::ucdavis.5000.4.1.2.11.99.104.101.99.107.95.110.103.105.110.120.1 = STRING:"6"

建立snmp item

snmp-oid

獲取最新數據

snmp獲取nginx數據

接下來建立觸發器以及報警，我就很少說了，你們能夠參考《zabbix觸發器》