linux：
在linux上手动获得tcp连接数的命令为：
netstat -an|awk '/^tcp/{++S[$NF]}END{for(a in S) print a,S[a]}'#ESTABLISHED socket已经建立连接 #CLOSED socket没有被使用，无连接 #CLOSING 服务器端和客户端都同时关闭连接 #CLOSE_WAIT 等待关闭连接 #TIME_WAIT 表示收到了对方的FIN报文，并发送出了ACK报文，等待2MSL后就可回到CLOSED状态 #LAST_ACK 远端关闭，当前socket被动关闭后发送FIN报文，等待对方ACK报文 #LISTEN 监听状态 #SYN_RECV 接收到SYN报文 #SYN_SENT 已经发送SYN报文 在zabbix_agent端编辑配置文件:
vi /etc/zabbix/zabbix_agentd.confInclude=/etc/zabbix/zabbix_agentd.d/
#编写一个获取tcp状态的脚本：mkdir /etc/zabbix/zabbix_agentd.d/script #此处注意，一定不要将脚本直接放到/etc/zabbix/zabbix_agentd.d/目录下，否则zabbix_agent会把它当做自己的配置文件执行，造成重启不成功vi /etc/zabbix/zabbix_agentd.d/script/tcp_status.sh#!/bin/bash#this script is get tcp statustmp_file=/tmp/tcp_status.txt/bin/netstat -an|awk '/^tcp/{++S[$NF]}END{for(a in S) print a,S[a]}' > $tmp_file case $1 in closed) output=$(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 /etc/zabbix/zabbix_agentd.d/script/tcp_status.sh
编写zabbix_agent上的自定义key：
vi /etc/zabbix/zabbix_agentd.confUserParameter=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。