nagios监控远端linux主机
来自：网络被监控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 nagios培训 需要修改
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# 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=/usr/local/nagios/libexec/check_users -w 5 -c 10 command=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20 command=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/xvda1 command=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/xvda2#自己定义的需要监控项
command=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/xvda3 command=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z command=/usr/local/nagios/libexec/check_procs -w 150 -c 200command=/usr/local/nagios/libexec/check_ping -H 127.0.0.1 -w 100.0,20% -c 500.0,60% command=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p / command=/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 nagios实施 ?
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# /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
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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）
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cfg_file=/usr/local/nagios/etc/objects/linuxhost.cfg#在nagios主配置文件里添加这么一行
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# 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 监控软件 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
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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IPnsclient++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 nagios配置 到服务器上试着运行check_nt 看能不能连接我window host
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# ./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
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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
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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
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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
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# check
Nagios Core 3.5.1
Copyright (c) 2009-2011 Nagios Core Development Team and Community Contributors
Copyright (c) 1999-2009 Ethan Galstad 开源监控软件 Last Modified: 08-30-2013
License: GPL
Website: http://www.
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. nagios安装
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
uploads/space/2015/0423/152925_LZYP_1769595.png
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
想做Nagios， Zabbix,Cacti,iTop各种交流的，可以进入开源监控工具Nagios交流QQ群号 ：476809427
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