Linux服务器状态检测脚本（Perl & Shell）

最近服务器经常宕机，导致网站无法正常运行，于是写了一个自动检测网站服务器alive状态的脚本，从网上查到了perl和shell两种脚本的实现方式，同时加入了邮件通知的脚本。

Perl采用的是ICMP检测主机，Perl的脚本如下：

#!/usr/bin/perl -w

use Net::Ping;
use Net::SMTP;
use MIME::Base64;

my @host_array=('192.168.0.10','192.168.0.11');

my $p = Net::Ping->new("icmp");
foreach $host (@host_array)
{
   # print "$host is ";
    unless($p->ping($host,2))
    {
        &sendmail($host." is down",$host." is down");
    }
   # print "\n";
   # print "NOT " unless $p->ping($host, 2);
   # print "reachable.\n";
    sleep(1);
}
sub sendmail(){
        my $mailhost = "smtp server domain"; # the smtp host
        my $mailfrom = 'your email address'; # your email address
        my $mailto='email address you want to send';
        my $subject=$_[0];
        my $text = $_[1];
        $smtp = Net::SMTP->new($mailhost, Hello => 'localhost', Timeout =>120, Debug => 1);
        $smtp->auth('user name','password');

        $smtp->mail($mailfrom);
        $smtp->to($mailto);
        $smtp->data();
        $smtp->datasend("Content-Type:text/html;charset=utf-8\n");
        $smtp->datasend("Content-Transfer-Encoding:base64\n");
        $smtp->datasend("To:=?utf-8?B?".encode_base64($mailto,'')."?= <$mailto> \n");
        $smtp->datasend("From:=?utf-8?B?".encode_base64($mailfrom,'')."?= <$mailfrom> \n");
        $smtp->datasend("Subject:=?utf-8?B?".encode_base64($subject,'')."?=\n\n");
        $smtp->datasend("\n");
        $smtp->datasend(encode_base64($text,'')." \n");
        $smtp->dataend();
}
$p->close();

Shell的脚本通过ping检测主机状态，贴一下网友的代码吧

#!/bin/sh
pingcmd()
{
prefix="SERVER $1 PING $2"
ping -w 1 -c 1 $2>/dev/null
ret=$?
if [ $ret -eq 0 ]
then printf "$prefix\t OK\n"
else printf "$prefix\t ERROR\n"
fi
return 0
}

echo "---------------------------------------"
echo "核心网1 1.1     PING FROM 1"
echo "---------------------------------------"
server0="182.87.1.3"
server1="182.87.1.2"

pingcmd $server0 $server1

echo ""

可以通过加入相应的通知类库，如飞信的开源接口，做到即时报警通知。

参考资料：

http://blogold.chinaunix.net/u/25264/showart_1360067.html

http://bbsea123.blog.163.com/blog/static/722651472010126111454814/

Linux服务器状态检测脚本（Perl & Shell）

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