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zabbix监控linux和windows的tcp连接数

linux:

在linux上手动获得tcp连接数的命令为:

netstat -an|awk ‘/^tcp/{++S[$NF]}END{for(a in S) print a,S[a]}‘

#ESTABLISHED       socket已经建立连接  
#CLOSED            socket没有被使用,无连接  
#CLOSING           服务器端和客户端都同时关闭连接  
#CLOSE_WAIT        等待关闭连接  
#TIME_WAIT         表示收到了对方的FIN报文,并发送出了ACK报文,等待2MSL后就可回到CLOSED状态  
#LAST_ACK          远端关闭,当前socket被动关闭后发送FIN报文,等待对方ACK报文  
#LISTEN            监听状态  
#SYN_RECV          接收到SYN报文  
#SYN_SENT          已经发送SYN报文


在zabbix_agent端编辑配置文件:

vi /etc/zabbix/zabbix_agentd.conf
Include=/etc/zabbix/zabbix_agentd.d/
#编写一个获取tcp状态的脚本:
mkdir /etc/zabbix/zabbix_agentd.d/script 
  
#此处注意,一定不要将脚本直接放到/etc/zabbix/zabbix_agentd.d/目录下,否则zabbix_agent会把它当做自己的配置文件执行,造成重启不成功
vi /etc/zabbix/zabbix_agentd.d/script/tcp_status.sh

#!/bin/bash
#this script is get tcp status
metric=$1
tmp_file=/tmp/tcp_status.txt
/bin/netstat -an|awk ‘/^tcp/{++S[$NF]}END{for(a in S) print a,S[a]}‘ > $tmp_file
 
case $metric in
   closed)
          output=$(awk ‘/CLOSED/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   listen)
          output=$(awk ‘/LISTEN/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   synrecv)
          output=$(awk ‘/SYN_RECV/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   synsent)
          output=$(awk ‘/SYN_SENT/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   established)
          output=$(awk ‘/ESTABLISHED/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   timewait)
          output=$(awk ‘/TIME_WAIT/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   closing)
          output=$(awk ‘/CLOSING/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   closewait)
          output=$(awk ‘/CLOSE_WAIT/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   lastack)
          output=$(awk ‘/LAST_ACK/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
         ;;
   finwait1)
          output=$(awk ‘/FIN_WAIT1/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
         ;;
   finwait2)
          output=$(awk ‘/FIN_WAIT2/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
         ;;
         *)
          echo -e "\e[033mUsage: sh  $0 [closed|closing|closewait|synrecv|synsent|finwait1|finwait2|listen|established|lastack|timewait]\e[0m"
   
esac
#赋予脚本可执行权限
chmod +x /



编写zabbix_agent上的自定义key:

vi /etc/zabbix/zabbix_agentd.conf
UserParameter=tcp.status[*],/etc/zabbix/zabbix_agentd.d/script/tcp_status.sh $1


重启zabbix_agent:

/etc/init.d/zabbix_agent restart


在服务端测试输入参数返回的值:

zabbix_get -s 118.190.114.140 -p 10050 -k tcp.status[listen]


最后在zabbix上创建监控项和触发器,附件中上传了一个附件,里面是tcp_status模板,直接在配置——模板——导入即可。





windows:

在windows上手动获得tcp连接数的命令为:



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zabbix监控linux和windows的tcp连接数