运用nagios监控windows主机

1.说明在此演示nagios通过check_nt监控windows主机，需要在windows主机上安装NSClient++，[ /nscp/downloads]nscp/downloads
2.安装NSClient++
Allowed hosts：nagios server的ip地址 NSClient password：在此设置密码后，在使用check_nt获取主机信息时需要使用-s password指定密码 nagios培训
安装完成，启动服务。 NSClient++的配置文件：INSTALLDIR\NSC.ini check_nt端口：12489 NRPE端口：5666 3.关于check_nt命令路径：/usr/local/nagios/libexec/check_nt
查看帮助：/usr/localnagios/libexec/check_nt -h [ /forlinux/blog/370742#]?

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Usage: check_nt -H host -v variable [-p port] [-w warning] [-c critical] [-l params] [-d SHOWALL] [-u] [-t timeout] Options: -H, --hostname=HOST nagios需要监控的主机ip -p, --port=INTEGER 指定访问被监控主机的ip地址，默认为1248 -s, --secret=<password> 指定访问被监控主机需要的密码 -w, --warning=INTEGER warning状态的阈值 -c, --critical=INTEGER critical状态的阈值 -t, --timeout=INTEGER Seconds before connection attempt times out (default: -l, --params=<parameters> nagios实施 Parameters passed to specified check (see below) -d, --display={SHOWALL} Display options (currently only SHOWALL works) -u, --unknown-timeout Return UNKNOWN on timeouts10) -v, --variable=STRING 指定对被监控主机监测哪些指标 可以使用的监测指标: CLIENTVERSION = 获取NSClient的版本 # ./check_nt -H 10.8.4.23 -p 12489 -v CLIENTVERSION NSClient++ 0.3.9.328 2011-08-16 如果使用-l <version>指定了一个版本，一旦版本不符，将会返回warning CPULOAD = 过去x分钟cpu平均负载 -l语法: -l <minutes range>,<warning threshold>,<critical threshold>. <minute range> 要小于 24*60. 阈值是百分比，而且10个请求可以1次完成 ie: -l 60,90,95,120,90,95 # ./check_nt -H 10.8.4.23 -p 12489 -v CPULOAD -l 5,80,90 CPU Load 6% (5 min average) | '5 min avg Load'=6%;80;90;0;100 # ./check_nt -H 10.8.4.23 -p 12489 -v CPULOAD -l 5,80,90,20,85,95 CPU Load 7% (5 min average) 8% (20 min average) | '5 min avg Load'=7%;80;90;0;100 '20 min avg Load'=8%;85;95;0;100 UPTIME = 获取主机的运行时间 -l <unit> <unit> = seconds, minutes, hours, or days. (default: minutes) Thresholds will use the unit specified above. # ./check_nt -H 10.8.4.23 -p 12489 -v UPTIME -l hours System Uptime - 7 day(s) 3 hour(s) 58 minute(s) |uptime=171 # ./check_nt -H 10.8.4.23 -p 12489 -v UPTIME -l days System Uptime - 7 day(s) 3 hour(s) 58 minute(s) |uptime=7 USEDDISKSPACE = 硬盘大小及使用率. -l选项只指定盘符: -l C Warning and critical thresholds can be specified with -w and -c. 监控软件 # ./check_nt -H 10.8.4.23 -p 12489 -w 80 -c 90 -v USEDDISKSPACE -l C C:\ - total: 58.26 Gb - used: 36.94 Gb (63%) - free 21.32 Gb (37%) | 'C:\ Used Space'=36.94Gb;46.61;52.43;0.00;58.26 MEMUSE = 内存使用率. Warning and critical thresholds can be specified with -w and -c. # ./check_nt -H 10.8.4.23 -p 12489 -w 80 -c 90 -v MEMUSE Memory usage: total:5186.80 MB - used: 3414.76 MB (66%) - free: 1772.04 MB (34%) | 'Memory usage'=3414.76MB;4149.44;4668.12;0.00;5186.80 SERVICESTATE = 检查一个或多个服务的状态. Request a -l parameters with the following syntax: -l <service1>,<service2>,<service3>,... You can specify -d SHOWALL in case you want to see working services in the returned string. # ./check_nt -H 10.8.4.23 -p 12489 -v SERVICESTATE -l Spooler Spooler: Stopped PROCSTATE = Check if one or several process are running. # ./check_nt -H 10.8.4.23 -p 12489 -v PROCSTATE -l NSClient++.exe OK: All processes are running. INSTANCES = Some examples: check_nt -H 192.168.1.1 -p 1248 -v INSTANCES -l Process

4.配置nagios通过check_nt监控windows主机[ /forlinux/blog/370742#]?

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#定义command： [root@nagios1 objects]# vim commands.cfg define command{ #定义command name，必须全局唯一 command_name check_nt_1 #定义command如何获取主机的信息 $$是定义变量 command_line $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$ } #定义host和service： [root@nagios1 objects]# vim windows.cfg define host{ #继承名为windows-server的主机模板 use windows-server #主机名，必须全局唯一 host_name mywinserver alias My Windows Server #被监控主机的ip地址，会传递给上面的$HOSTADDRESS$ address 10.8.4.23 nagios配置 } define service{ #继承名为generic-service的服务模板 use generic-service host_name mywinserver service_description NSClient++ Version #使用上面定义的command，!后面的是传递给$ARG1$的值，如果传递两个 #值，需要用!隔开，例如check_nt_1!N1!N2 check_command check_nt_1!CLIENTVERSION } define service{ use generic-service host_name mywinserver service_description Uptime check_command check_nt_1!UPTIME } define service{ use generic-service host_name mywinserver service_description CPU Load check_command check_nt_1!CPULOAD!-l 5,80,90 } define service{ use generic-service host_name mywinserver service_description Memory Usage check_command check_nt_1!MEMUSE!-w 80 -c 90 } define service{ use generic-service host_name mywinserver service_description C:\ Drive Space check_command check_nt_1!USEDDISKSPACE!-l c -w 80 -c 90 } define service{ use generic-service host_name mywinserver service_description Explorer check_command check_nt_1!PROCSTATE!-d SHOWALL -l Explorer.exe 开源监控软件 }

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#启用windows.cfg [root@nagios1 nagios]# vim nagios.cfg cfg_file=/etc/nagios/objects/windows.cfg

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#检查语法 [root@nagios1 objects]# /usr/local/nagios/bin/nagios -v /etc/nagios/nagios.cfg #重启nagios服务 [root@nagios1 objects]#service nagios restart

5.验证
过了一段时间，所有相关信息已获取到： 我们看到c盘的使用率为63%，我们上面定义-w 80意思为使用率80%以上为WARNING，我们做如下修改： nagios安装 [ /forlinux/blog/370742#]?

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#vim /etc/nagios/object/windows.cfg define service{ use generic-service host_name mywinserver service_description C:\ Drive Space check_command check_nt_1!USEDDISKSPACE!-l c -w 60 -c 90 } #service nagios restart