检测端口或者服务是否开启

检查服务状态

#!/bin/bash

PS_C=$(ps -ef |grep httpd |grep -vc grep)

if [ $PS_C -eq 0 ];then

        echo "sorry httpd not running" | mail -s "test mail" 17733661341@163.com

fi

首先本机安装好nmap,yum搭建好

#!/bin/bash

for i in 23 24
do
        nmap -n -p 22,80,111,53 192.168.30.$i | grep -E "tcp|udp"
done

检测本机IP状态 创建文件iplist 添加IP本机的
#!/bin/bash
for ip in $(cat /root/iplist)
do
        ping -c 2 -i 0.2 -w 3 $ip &> /dev/null
        if [ $? -eq 0 ]
        then
                echo "Host $ip is up"
        else
                echo "Host $ip isdown"
        fi
done

检测本机的网段
#!/bin/bash

for ip in 192.168.30.{20..150}
do
        ping -c 2 -i 0.2 -w 3 $ip &> /dev/null
        if [ $? -eq 0 ]
        then
                echo "Host $ip is up "
        else
                echo "Host $ip is down"
        fi
done