zabbix监控tcp连接

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zabbix监控tcp连接

1、编辑客户端监控脚本

vim /usr/local/zabbix_agentd/bin/script/tcp

#!/bin/bash

source /etc/bashrc >/dev/null 2>&1

source /etc/profile >/dev/null 2>&1

LOG_FILE=/tmp/tcp_connect.log

netstat -n|awk '/^tcp/ {++S[$NF]} END {for (a in S) print a,S[a]}' > ${LOG_FILE}

Permission=$(ls -l ${LOG_FILE} |awk '{print $3}')

[ "$Permission" != zabbix ] && chown zabbix.zabbix /tmp/tcp_connect.log

#Functions to return tcp connect status

established () {

     VALUE=$(awk '/ESTABLISHED/ {print $2}' ${LOG_FILE})

    [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

listen () {

     VALUE=$(awk '/LISTEN/ {print $2}'     ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

timewait () {

     VALUE=$(awk '/TIME_WAIT/   {print $2}' ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

timeclose () {

     VALUE=$(awk '/TIME_CLOSE/ {print $2}' ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

finwait1 () {

     VALUE=$(awk '/FIN_WAIT1/   {print $2}' ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

finwait2 () {

     VALUE=$(awk '/FIN_WAIT2/   {print $2}' ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

synsent () {

     VALUE=$(awk '/SYN_SENT/   {print $2}' ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

synrecv () {

     VALUE=$(awk '/SYN_RECV/   {print $2}' ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

closewait () {

     VALUE=$(awk '/CLOSE_WAIT/ {print $2}' ${LOG_FILE})

     [ "${VALUE}" != "" ] && echo ${VALUE}|| echo 0

}

# Run the requested function

case "$1" in

        established)

            established

            ;;

        listen)

            listen

            ;;

        timewait)

            timewait

            ;;

        timeclose)

            timeclose

        ;;

        finwait1)

            finwait1

            ;;

        finwait2)

            finwait2

            ;;

        synsent)

            synsent

            ;;

        synrecv)

            synrecv

            ;;

        closewait)

            closewait

            ;;

        *)

            echo "Usage: $0 { established|listen|timewait|timeclose|finwait1|finwait2|synsent|synrecv|closewait}"

            ;;

esac

2、修改zabbix客户端配置文件，添加如下信息
UserParameter=TCP_Established,/usr/local/zabbix_agentd/bin/script/tcp establishedUserParameter=TCP_listen,/usr/local/zabbix_agentd/bin/script/tcp listen
UserParameter=TCP_timewait,/usr/local/zabbix_agentd/bin/script/tcp timewait
UserParameter=TCP_timeclose,/usr/local/zabbix_agentd/bin/script/tcp timeclose
UserParameter=TCP_finwait1,/usr/local/zabbix_agentd/bin/script/tcp finwait1
UserParameter=TCP_synsent,/usr/local/zabbix_agentd/bin/script/tcp synsent
UserParameter=TCP_synrecv,/usr/local/zabbix_agentd/bin/script/tcp synrecv
UserParameter=TCP_closewait,/usr/local/zabbix_agentd/bin/script/tcp closewait
重启zabbix_agentd 服务
service zabbix_agentd restar


3、测试zabbix 是否获取到tcp连接数
/usr/local/zabbix_agentd/bin/zabbix_get -s 127.0.0.1 -k  TCP_Established
netstat -n|awk '/^tcp/ {++S[$NF]} END {for (a in S) print a,S[a]}'
对比 established的值是否相等
客户端检查正常后再zabbix服务端进行测试
/usr/local/zabbix/bin/zabbix_get -s 客户端ip -k  TCP_Established
4、添加监控