zabbix监控tcp连接数脚本

1、添加脚本
[root@localhost]# vim /etc/zabbix/zabbix_agent2.d/plugins.d/check_tcp.sh
#!/bin/bash
NAME=$1
function LISTEN {
netstat -an |grep 'LISTEN'|grep tcp |wc -l
}

function ESTABLISHED {
netstat -an |grep 'ESTABLISHED'|grep tcp |wc -l
}

function TIME_WAIT {
netstat -an |grep 'TIME_WAIT'|grep tcp |wc -l
}

case $NAME in
listen)
LISTEN
;;
established)
ESTABLISHED
;;
time_wait)
TIME_WAIT
;;
*)
echo -e "Usage: $0 [listen | established | time_wait]"
esac

2、获取参数

[root@localhost plugins.d]# chmod +x check_tcp.sh

[root@localhost plugins.d]# sh check_tcp.sh 
Usage: check_tcp.sh [listen | established | time_wait]
[root@localhost plugins.d]# sh check_tcp.sh listen
44
[root@localhost plugins.d]# sh check_tcp.sh established
1050
[root@localhost plugins.d]# sh check_tcp.sh time_wait
526

3、添加子配置文件

[root@localhost plugins.d]# vim /etc/zabbix/zabbix_agent2.d/plugins.d/tcp.conf 

UserParameter=tcp.[*],/etc/zabbix/zabbix_agent2.d/plugins.d/check_tcp.sh $1

4、重启

[root@localhost plugins.d]# systemctl restart zabbix-agent2.service 

5、新建模版

6、依次添加剩余的键值

 7、主机添加模版

 8、等待片刻，观察数据