sh 测试网段在线主机
yum install nmap
nmap -sP 192.168.21.1/24 查看网段在线主机
grep -vwf file1 file2 文件内容比较
#!/bin/bash # day=`date +%F` oldlog=/root/showlongin/amazon-login2016.txt touch /root/showlongin/$day nmap -sP 192.168.21.1/24 |grep -o "192.*" > /root/showlongin/$day if grep -vwf $day $oldlog &> /dev/null;then echo -e "\033[31m`grep -vwf $day $oldlog`\033[0m, IP is shutdown!!" else echo -e " \033[32mIt Perfect!!\033[0m" fi [root@beary showlongin]# ./showlongin.sh 192.168.21.52, IP is shutdown!!
测试在线主机 II
适用于多台监控多台windows服务器多网卡配置
windows 运行一个ping 外网脚本，判断是否断网。正常则在本地log日志新增OK，已断开则向监控服务器发送断开日志，IP，down
Linux 安装环境：
smb共享 http://blog.chinaunix.net/uid-23069658-id-3142052.html
linux -msmtp +mutt 邮件通告： http://blog.slogra.com/post-418.html
http://storysky.blog.51cto.com/628458/631267/
windows ping脚本：
1 @echo off 2 :abc 3 if "%1"=="hide" goto CmdBegin 4 start mshta vbscript:createobject("wscript.shell").run("""%~0"" hide",0)(window.close)&&exit 5 :CmdBegin ##转后台运行 6 7 for /f "tokens=16" %%i in ('ipconfig ^| find /i "192.168.1"') do set ip=%%i ## 获取内网IP 8 @ ping -n 10 www.baidu.com >nul 9 @ if %errorlevel%==1 echo %ip%_ADSL,down_%date:~0,10%_%time:~0,5% >>\\192.168.1.10\sabc\showlogin.txt ##判定，断网则向共享发送日志 10 @ if %errorlevel%==0 echo %ip%_network,OK_%date:~0,10%_%time:~0,5% >>c:\netlog.txt ##成功，本地生成日志 11 12 choice /t 1800 /d y /n >nul #休眠时间 13 goto abc #循环测试
Linux 监控脚本
cat showlogin.sh
1 #!/bin/bash 2 # 3 SAMPLE=/sabc/samplelogin.txt 4 NOWLOG=/sabc/showlogin.txt 5 while :;do 6 if grep -vwf $SAMPLE $NOWLOG &> /dev/null;then #文件内容对比判断 7 DOWN=`grep -vwf $SAMPLE $NOWLOG` 8 IPA=`grep -vwf $SAMPLE $NOWLOG | awk -F_ '{print $1}'` 9 echo "$DOWN" | mutt -s "warning $IPA wan-down!!" abc@abc.cn ##有生成新内容则截取，发送邮件 10 sleep 5 11 grep -vwf $SAMPLE $NOWLOG >> $SAMPLE #将新增内容添加到样本文件，以做下次判断 12 fi 13 sleep 300 14 done
linux: 脚本后台运行
# ./showlogin.sh &
加入开机启动项：
[root@shlogin share]# cat /etc/rc.d/rc.local #!/bin/sh # # This script will be executed *after* all the other init scripts. # You can put your own initialization stuff in here if you don't # want to do the full Sys V style init stuff. touch /var/lock/subsys/local /share/showlogin.sh & ##直接新增一条记录
