使用Nagios监控Windows服务器CPU利用率（SNMP方式）

监控WIndows服务器相关性能，建议采用SNMP方式，但是配置比较麻烦。假如采用NSCLIENT++插件会更加方便，前提是需要在具体被监控服务器上安装插件。万一影响了服务器本身的应用程序就不太好了。所以，我一直在寻找监控Windows服务器的SNMP方式。

1、增加脚本如下：

cat /usr/lib/nagios/plugins/check_snmp_win_cpuload.pl #!/usr/bin/perl # # syntax: check_win_snmp_cpuload.pl HOST COMMUNITY WARN CRIT # # returns average load % across all CPUs #

use strict; use Net::SNMP;

my $host = shift; my $community = shift; my $warn = shift; my $crit = shift;

unless($crit) { errorExit("syntax: check_win_snmp_cpu.pl HOST COMMUNITY WARN CRIT"); }

our %ERRORS = ( OK => 0, WARNING => 1, CRITICAL => 2, UNKNOWN => 3, DEPENDENT => 4 );

my $oidCpuTable=.1.3.6.1.2.1.25.3.3.1.2;

# get SNMP session object my ($snmp, $err) = Net::SNMP->session( -hostname => $host, -community => $community, -port => 161, -version => 1 ); errorExit( $err ) unless (defined($snmp));

# get cpu load table my $response = $snmp->get_table( -baseoid => $oidCpuTable ); errorExit( "error getting cpu table" ) unless $response; my %value = %{$response}; $snmp->close();

my $cnt = 0; my $sum = 0; foreach my $load ( values %value ){ $cnt += 1; $sum += $load; }; my $pct = int ($sum / $cnt);

my $err = ($pct > $crit) ? CRITICAL : ($pct > $warn) ? WARNING : OK; print "$err : CPU Load $pct% "; exit $ERRORS{$err};

sub errorExit { my $msg = shift; print "UNKNOWN: $msg "; exit $ERRORS{UNKNOWN}; }

2、定义相应的执行命令：

cat mysnmp.cfg define command{ command_name snmp_win_cpu command_line /usr/lib/nagios/plugins/check_snmp_win_cpuload.pl $HOS TADDRESS$ public 80 90 }

3、新建服务配置文件：

cat service.cfg define service { host_name jw-inside service_description CPU check_command snmp_win_cpu use generic-service }

4、新建主机文件： define host { host_name jw-inside alias jw-inside address 10.10.10.11 use generic-host icon_image vendors/ windows xp.png icon_image_alt jw-inside-server vrml_image vendors/windowsxp.png statusmap_image vendors/windowsxp.png }

其实熟悉nagios配置的人，只需要步骤1中的脚本就可以。我就不上图片了

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