nagios监控远端linux主机和windows主机

被监控LInux端需要安装nagios-plugin和NRPE  被监控window段需要安装NSClient++

一:监控远端Linux主机

被监控端安装的软件方式前面有介绍这里省略

需要修改

[root@xen etc]# grep -v '#' nrpe.cfg |grep -v '^$'
log_facility=daemon
pid_file=/var/run/nrpe.pid
server_port=5666
nrpe_user=nagios
nrpe_group=nagios
allowed_hosts=192.168.0.138  #允许那个服务器来从这获取数据
dont_blame_nrpe=0
allow_bash_command_substitution=0
debug=0
command_timeout=60
connection_timeout=300
command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_xvda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/xvda1
command[check_xvda2]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/xvda2  #自己定义的需要监控项 
command[check_xvda3]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/xvda3
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 
command[check_ping]=/usr/local/nagios/libexec/check_ping -H 127.0.0.1 -w 100.0,20% -c 500.0,60%
command[check_disk]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 30% -c 10%

重启nrpe

来到nagios服务器端,因为用nrpe来获取数据,所以啊,先要在服务器端也需要安装nrpe(安装过程前面有)执行

[root@kcw libexec]# /usr/local/nagios/libexec/check_nrpe -H 192.168.0.156   #检测服务器段能不能检测被监控主机
NRPE v2.15

定义NRPE

vim /usr/local/nagios/etc/objects/command.cfg  #添加如下
define command {
        command_name check_nrpe
        command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
        }

定义主机和服务  (nagios服务器段一定要包括这个文件linuxhost.cfg)

cfg_file=/usr/local/nagios/etc/objects/linuxhost.cfg  #在nagios主配置文件里添加这么一行
[root@kcw objects]# grep -v  '#' linuxhost.cfg  |grep -v '^$'
define host{
        use                     linux-server,host-pnp            ; Name of host template to use
							; This host definition will inherit all variables that are defined
							; in (or inherited by) the linux-server host template definition.
        host_name               linuxhost
        alias                   my linux host
        address                 192.168.0.156
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost 
        service_description             CHECK PING
	check_command			check_nrpe!check_ping
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost 
        service_description             CHECK SWAP
	check_command			check_nrpe!check_swap
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             Root Partition
	check_command			check_nrpe!check_disk
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             CHECK Users
	check_command			check_nrpe!check_users
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             check Total Processes
	check_command			check_nrpe!check_total_procs
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             check zombie Processes
	check_command			check_nrpe!check_zombie_procs
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             Check Load
	check_command			check_nrpe!check_load
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             xvda1 Partition
	check_command			check_nrpe!check_xvda1
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             xvda2 Partition
	check_command			check_nrpe!check_xvda2
        }
define service{
        use                             generic-service,srv-pnp         ; Name of service template to use
        host_name                       linuxhost
        service_description             xvda3 Partition
	check_command			check_nrpe!check_xvda3
        }


也可以单独把主机定义一个文件里,服务单独定一个文件里

ll hosts.cfg services.cfg 
-rw-r--r-- 1 nagios nagios 1216 2月  16 14:56 hosts.cfg
-rw-rw-r-- 1 nagios nagios 5029 2月  16 14:47 services.cfg
cat hosts.cfg 

define host{
                use                     linux-server,host-pnp
                host_name               web1
                alias                   web1
                address                 2.2.2.2
                }
                
define host{
                use                     linux-server,host-pnp
                host_name               web2
                alias                   web2
                address                 1.1.1.1
                .....
cat services.cfg 
define service{
        use                     generic-service,srv-pnp
        host_name               web1,web2,master1,slave1
        service_description     Current Load
        check_command           check_nrpe!check_load
        }
                
define service{
        use                     generic-service
        host_name               web1,web2,master1,slave1
		service_description     Disk Usage
        check_command           check_nrpe!check_disk
 .....



监控window主机

首先下载NSClient++

下载地址http://nsclient.org/nscp/downloads

安装就是一步一步下一步这里省略需要填写的就是nagios服务器端的IP  nsclient++  的密码  为了安全  我这里省略  勾都点上 支持的检测的方式不同

安装完成默认启用了check_nt  监听端口12489   nrpe监听的5666 端口

到服务器上试着运行check_nt 看能不能连接我window host 

[root@kcw libexec]# ./check_nt -H 192.168.0.137 -p 12489 -v UPTIME
System Uptime - 2 day(s) 4 hour(s) 46 minute(s) |uptime=3166    #表示可以从我window主机取到数据

在nagios服务器端定义command.cfg的check_nt命令

vim /usr/local/nagios/objects/command.cfg
# 'check_nt' command definition
define command{
        command_name    check_nt
        command_line    $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$   #$引用的是宏 也就是变量  -p指定端口  -s 指定密码  没有密码就不写了  -v 参数
        }


定义主机

nagios自带的模板文件建议修改之前先备份一下

修改windos模板定义主机和模板

vim /usr/local/nagios/etc/objects/windows.cfg 
define host{
        use             windows-server,host-pnp  ; Inherit default values from a template
        host_name       winserver       ; The name we're giving to this host
        alias           My Windows Server       ; A longer name associated with the host
        address         192.168.0.137   ; IP address of the host
        }
        
define service{
        use                     generic-service,srv-pnp
        host_name               winserver
        service_description     D:\ Drive Space
        check_command           check_nt!USEDDISKSPACE!-l d -w 80 -c 90
        }

完了启用windows.cfg文件

vim /usr/local/nagios/etc/nagios.cfg 
cfg_file=/usr/local/nagios/etc/objects/windows.cfg #添加这行

执行检查语法错误

[root@www share]# check

Nagios Core 3.5.1
Copyright (c) 2009-2011 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad
Last Modified: 08-30-2013
License: GPL

Website: http://www.nagios.org
Reading configuration data...
   Read main config file okay...
Processing object config file '/usr/local/nagios/etc/objects/commands.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/contacts.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/timeperiods.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/templates.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/localhost.cfg'...
Processing object config file '/usr/local/nagios/etc/objects/linuxhost.cfg'...
   Read object config files okay...

Running pre-flight check on configuration data...

Checking services...
	Checked 24 services.
Checking hosts...
	Checked 2 hosts.
Checking host groups...
	Checked 1 host groups.
Checking service groups...
	Checked 0 service groups.
Checking contacts...
	Checked 1 contacts.
Checking contact groups...
	Checked 1 contact groups.
Checking service escalations...
	Checked 0 service escalations.
Checking service dependencies...
	Checked 0 service dependencies.
Checking host escalations...
	Checked 0 host escalations.
Checking host dependencies...
	Checked 0 host dependencies.
Checking commands...
	Checked 25 commands.
Checking time periods...
	Checked 5 time periods.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors:   0

Things look okay - No serious problems were detected during the pre-flight check

重启nagios 

如下图

nagios监控远端linux主机和windows主机_第1张图片

以上window监控是默认check_nt 来实现

如果想用check_nrpe来监控 那就

修改windows的安装文件NSP文件打开相应的NSClient++ 允许的IP和端口  然后重启即可!这里省略

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