zabbix 自动发现远程端口

基于: https://www.cnblogs.com/loki717/p/7991081.html

由于存在多个端口，需要监控，重复创建zabbix监控项，转为自动发现远程端口，并测试端口状态

一、自动发现主机端口

1. hostlist.conf 主机端口映射文件

192.168.11.221;22
192.168.11.221;80

2. port_alert.sh 端口自发现脚本

4    prod-admin-02       172.19.120.37    [sa]
#!/bin/bash

CONF=/etc/zabbix/script/hostlist.conf

Check(){
    grep -vE '(^ *#|^$)' ${CONF} | grep -vE '^ *[0-9]+' &> /dev/null
    if [ $? -eq 0 ]
    then
        echo Error: ${CONF} Contains Invalid Port.
        exit 1
    else
        portarray=($(grep -vE '(^ *#|^$)' ${CONF} | grep -E '^ *[0-9]+'))
    fi
}

PortDiscovery(){
    length=${#portarray[@]}
    printf "{
"
    printf  '	'""data":["
    for ((i=0;i<$length;i++))
    do
        HOST=$(echo ${portarray[$i]} | awk -F ';' '{print $1}')
        PORT=$(echo ${portarray[$i]} | awk -F ';' '{print $2}')
        printf '
		{'
        printf ""{#TCP_HOST}":"${HOST}","
        printf ""{#TCP_PORT}":"${PORT}"}"
        if [ $i -lt $[$length-1] ];then
            printf ','
        fi
    done
    printf  "
	]
"
    printf "}
"
}

Port(){
    Check
    PortDiscovery
}
Port

测试处理结果

# sh port_alert.sh
{
        "data":[
                {"{#TCP_HOST}":"192.168.11.221","{#TCP_PORT}":"22"},
                {"{#TCP_HOST}":"192.168.11.221","{#TCP_PORT}":"80"}
        ]
}

3.1 自定义item，用于自动发现规则

# vim /etc/zabbix/zabbix_agentd.d/userparameter.conf
UserParameter=port.alert, /etc/zabbix/script/port_alert.sh

3.2 zabbix_get测试item

# zabbix_get -s 192.168.11.221 -k port.alert
{
        "data":[
                {"{#TCP_HOST}":"192.168.11.221","{#TCP_PORT}":"22"},
                {"{#TCP_HOST}":"192.168.11.221","{#TCP_PORT}":"80"}
        ]
}

二、监控主机端口状态

1. nc_port.sh 测试主机端口状态

#!/bin/bash

HOST=$1
PORT=$2

nc -w 3 -z $HOST $PORT && echo 1 || echo 0

2.1. 自定义item，用于测试主机状态

# vim /etc/zabbix/zabbix_agentd.d/userparameter.conf
UserParameter=mport.nc[*], /etc/zabbix/script/nc_port.sh $1 $2

2.2 zabbix_get测试item

# zabbix_get -s 172.19.129.207 -k mport.nc[192.168.11.221,80]
1

三、zabbix配置

1. 配置自动发现规则

2. 配置监控项原型

3. 配置触发器类型