Linux下基于端口的服務檢查腳本

#!/bin/bash

#program:Usingtostudythe[if...then...fi]program

#dsk2007/10/83:00

#content:Iwillusingthisprogramtoshowyousevices

#1.printtheprogram''sworkinyourscreen

echo "Now,the service of your Linux system will be detect!"

echo "The www,ftp,ssh,and sendmail pop3 will be detect!"

echo ""

#2.www

www=`netstat -ntlp | awk '{print $4}' | grep :80$`

if [ "$www" != "" ];

then

echo $www

echo "WWW is runing"

else

echo $www

echo "WWW is NOT runing"

killall -9 httpd

/usr/sbin/apachectl start

#service httpd start

fi

#3.ftp

ftp=`netstat -an | grep LISTEN | grep :21`

if [ "$ftp" != "" ]; then

echo $ftp

echo "FTP is runing "

else

echo "FTP is not runing"

killall -9 vsftpd

#service vsftpd start

/etc/init.d/vsftpd start

fi

#4.ssh

ssh=`netstat -ntlp | awk '{print $4}' | grep :22$`

#ssh=`netstat -an | grep LISTEN | grep :22`

if [ "$ssh" != "" ]; then

echo $ssh

echo "SSH is running"

else

echo "SSH is not running"

fi

#5.sendmail pop3

smtp=`netstat -an | grep LISTEN | grep :25`

pop3=`netstat -an | grep LISTEN | grep :110`

if [ "$smtp" != "" ] && [ "$pop3" != "" ]; then

echo "Send mail is OK!"

elif [ "$smtp" != "" ] && [ "$pop3" = "" ]; then

echo " Send mail have some problems of your pop3!"

elif [ "$smtp" = "" ] && [ "$pop3" != "" ]; then

echo "Send mail have so me problems of your smtp!"

else

echo "Send mail is NO Trunning!"

fi

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