Nagios的NRPE插件配置-創(chuàng)新互聯(lián)

1、NRPE簡介

創(chuàng)新互聯(lián)專業(yè)提供四川聯(lián)通機房服務(wù)器托管服務(wù)，為用戶提供五星數(shù)據(jù)中心、電信、雙線接入解決方案，用戶可自行在線購買四川聯(lián)通機房服務(wù)器托管服務(wù)，并享受7*24小時金牌售后服務(wù)。

Nagios監(jiān)控遠程主機的方法有多種，其方式包括SNMP、NRPE、SSH和NCSA等。這里介紹其通過NRPE監(jiān)控遠程Linux主機的方式。

NRPE（Nagios RemotePluginExecutor）是用于在遠端服務(wù)器上運行檢測命令的守護進程，它用于讓Nagios監(jiān)控端基于安裝的方式觸發(fā)遠端主機上的檢測命令，并將檢測結(jié)果輸出至監(jiān)控端。而其執(zhí)行的開銷遠低于基于SSH的檢測方式，而且檢測過程并不需要遠程主機上的系統(tǒng)帳號等信息，其安全性也高于SSH的檢測方式。

2、安裝配置被監(jiān)控端

1）先添加nagios用戶

# useradd -s/sbin/nologin nagios

2）NRPE依賴于nagios-plugins，因此，需要先安裝之

[root@node3 ~]# ls

nrpe-2.15.tar.gz

nagios-plugins-1.5.tar.gz

[root@node3 ~]# tar-xf nrpe-2.15.tar.gz

安裝編譯環(huán)境

[root@node3 ~]# yuminstall gcc make -y

# tar zxfnagios-plugins-1.4.15.tar.gz

# cdnagios-plugins-1.4.15

# ./configure--with-nagios-user=nagios --with-nagios-group=nagios

# make all

# make instal

3）安裝NRPE

[root@node3nrpe-2.15]# yum install openssl openssl-devel -y

# tar -zxvfnrpe-2.12.tar.gz

# cd nrpe-2.12.tar.gz

# ./configure--with-nrpe-user=nagios \

--with-nrpe-group=nagios \

--with-nagios-user=nagios \

--with-nagios-group=nagios \

--enable-command-args \

--enable-ssl #如果要啟用ssl的話，需要安裝opensslopenssl-devel包

# make all

# make install-plugin

# make install-daemon

# makeinstall-daemon-config

4）配置NRPE

# vim /usr/local/nagios/etc/nrpe.cfg

log_facility=daemon

pid_file=/var/run/nrpe.pid

server_address=192.168.0.3

server_port=5666

nrpe_user=nagios

nrpe_group=nagios

allowed_hosts=192.168.0.4

command_timeout=60

connection_timeout=300

debug=0

上述配置指令可以做到見名知義，因此，配置過程中根據(jù)實際需要進行修改即可。其中，需要特定說明的是allowed_hosts指令用于定義本機所允許的監(jiān)控端的IP地址。

5）啟動NRPE

#/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d

為了便于NRPE服務(wù)的啟動，可以將如下內(nèi)容定義為/etc/init.d/nrped腳本：

#!/bin/bash
# chkconfig: 2345 8812
# description: NRPEDAEMON
NRPE=/usr/local/nagios/bin/nrpe
NRPECONF=/usr/local/nagios/etc/nrpe.cfg
case "$1"in
start)
echo-n "Starting NRPE daemon..."
$NRPE-c $NRPECONF -d
echo" done."
;;
stop)
echo-n "Stopping NRPE daemon..."
pkill-u nagios nrpe
echo" done."
;;
restart)
$0stop
sleep2
$0start
;;
*)
echo"Usage: $0 start|stop|restart"
;;
esac
exit 0

或者，也可以在/etc/xinetd.d目錄中創(chuàng)建nrpe文件，使其成為一個基于非獨立守護進程的服務(wù)，文件內(nèi)容如下：

service nrpe
{
flags= REUSE
socket_type= stream
wait= no
user= nagios
group= nagios
server= /usr/local/nagios/bin/nrpe
server_args= -c /etc/nagios/nrpe.cfg -i
log_on_failure+= USERID
disable= no
}

此種情況下啟動NRPE進程需要通過重啟xinetd來實現(xiàn)。

6）配置允許遠程主機監(jiān)控的對象

在被監(jiān)控端，可以通過NRPE監(jiān)控的服務(wù)或資源需要通過nrpe.cfg文件使用命令進行定義，定義命令的語法格式為：command[<command_name>]=<command_to_execute>。比如：

command[check_rootdisk]=/usr/local/nagios/libexec/check_disk-w 20% -c 10% -p /

command[check_swap]=/usr/local/nagios/libexec/check_disk-w 40% -c 20%

command[check_sensors]=/usr/local/nagios/libexec/check_sensors #需要安裝sensor

command[check_users]=/usr/local/nagios/libexec/check_users-w 10 -c 20

command[check_load]=/usr/local/nagios/libexec/check_load-w 10,8,5 -c 20,18,15

command[check_sda1]=/usr/local/nagios/libexec/check_disk-w 20% -c 10% -p /dev/sda1

command[check_sda2]=/usr/local/nagios/libexec/check_disk-w 20% -c 10% -p /dev/sda2

command[check_zombies]=/usr/local/nagios/libexec/check_procs-w 5 -c 10 -s Z

command[check_all_procs]=/usr/local/nagios/libexec/check_procs-w 150 -c 200

7）啟動進程

[root@node3 ~]#chkconfig --add  nrped
[root@node3 ~]#chkconfig --list nrped
nrped                 0:off        1:off        2:on        3:on        4:on        5:on        6:off
[root@node3 ~]#service nrped start
Starting NRPEdaemon...done.
[root@node3 ~]#service nrped restart
Stoping NRPEdaemon...done.
Starting NRPEdaemon...done.
[root@node3 ~]#netstat -tlnp
Active Internetconnections (only servers)
Proto Recv-Q Send-QLocal Address               ForeignAddress             State       PID/Program name 
tcp        0     0 0.0.0.0:22                 0.0.0.0:*                   LISTEN      1212/sshd         
tcp        0     0 127.0.0.1:25               0.0.0.0:*                   LISTEN      1296/master       
tcp        0     0 192.168.0.3:5666           0.0.0.0:*                   LISTEN      35058/nrpe        
tcp        0     0 :::22                      :::*                        LISTEN      1212/sshd         
tcp        0     0 ::1:25                     :::*                        LISTEN      1296/master

3、配置監(jiān)控端，nagios的服務(wù)端

1）安裝NRPE

# tar -zxvfnrpe-2.12.tar.gz

# cd nrpe-2.12.tar.gz

# ./configure--with-nrpe-user=nagios \

--with-nrpe-group=nagios \

--with-nagios-user=nagios \

--with-nagios-group=nagios \

--enable-command-args \

--enable-ssl

# make all

# make install-plugin

2）定義如何監(jiān)控遠程主機及服務(wù)：

通過NRPE監(jiān)控遠程Linux主機要使用chech_nrpe插件進行，其語法格式如下：

check_nrpe -H<host> [-n] [-u] [-p <port>] [-t <timeout>] [-c<command>] [-a <arglist...>]

測試遠端主機是否正常

[root@node4 libexec]#./check_nrpe -H 192.168.0.3

NRPE v2.15

使用示例1：

定義監(jiān)控遠程Linux主機swap資源的命令：

[root@node4 objects]# vim /usr/local/nagios/etc/objects/commands.cfg #添加下面的命令

definecommand{

command_namecheck_swap_nrpe

command_line $USER1$/check_nrpe –H"$HOSTADDRESS$" -c "ARG1"

}

定義遠程Linux主機的swap資源：

defineservice

{

usegeneric-service

host_namelinuxserver1,linuxserver2

hostgroup_namelinux-servers

service_descriptionSWAP

check_commandcheck_swap_nrpe

normal_check_interval30

}

使用示例2：

如果希望上面的command定義更具有通用性，那么上面的定義也可以修改為如下：

定義監(jiān)控遠程Linux主機的命令：

definecommand

{

command_namecheck_nrpe

command_line$USER1$/check_nrpe –H "$HOSTADDRESS$" -c $ARG1$

}

$USER1$/check_nrpe –H"$HOSTADDRESS$" -c $ARG1$ $ARG2$

定義遠程Linux主機的swap資源：

defineservice

{

usegeneric-service

host_namelinuxserver1,linuxserver2

hostgroup_namelinux-servers

service_descriptionSWAP

check_commandcheck_nrpe!check_swap

normal_check_interval30

}

使用示例3：

如果還希望在監(jiān)控遠程Linux主機時還能向其傳遞參數(shù)，則可以使用類似如下方式進行：

定義監(jiān)控遠程Linux主機disk資源的命令：

definecommand

{

command_namecheck_swap_nrpe

command_line$USER1$/check_nrpe –H "$HOSTADDRESS$" -c "check_swap" -a$ARG1$ $ARG2$

}

定義遠程Linux主機的swap資源：

defineservice

{

usegeneric-service

host_namelinuxserver1,linuxserver2

hostgroup_namelinux-servers

service_descriptionSWAP

check_commandcheck_swap_nrpe!20!10

normal_check_interval30

}

實際操作：

[root@node4 objects]# vim /usr/local/nagios/etc/objects/commands.cfg #添加下面的命令
define command{
        command_name check_nrpe
        command_line $USER1$/check_nrpe -H"$HOSTADDRESS$" -c $ARG1$
       }
[root@node4 ~]# cd/usr/local/nagios/etc/objects/
[root@node4 objects]#vim commands.cfg
[root@node4 objects]#cp -p windows.cfg linuxserver.cfg
[root@node4 objects]#ll linuxserver.cfg
-rw-rw-r--. 1 nagiosnagios 4019 Feb 23 21:49 linuxserver.cfg
根據(jù)被監(jiān)控端node3的關(guān)于命令的定義來定義這個
[root@node4 objects]#vim linuxserver.cfg
define host{
        use             linux-server    ; Inherit default values from a template
        host_name       linuxserver     ; The name we're giving to this host
        alias           My linux Server ; A longer nameassociated with the host
        address         192.168.0.3     ; IP address of the host
        }
###############################################################################
###############################################################################
#
# HOST GROUPDEFINITIONS
#
###############################################################################
###############################################################################
# Define a hostgroupfor Windows machines
# All hosts that usethe windows-server template will automatically be a member of this group
#define hostgroup{
#       hostgroup_name windows-servers ; The name of the hostgroup
#       alias          windows Servers ; Long name of thegroup
#       }
###############################################################################
###############################################################################
#
# SERVICE DEFINITIONS
#
###############################################################################
###############################################################################
# Create a servicefor monitoring the version of NSCLient++ that is installed
# Change thehost_name to match the name of the host you defined above
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     CHECK USERS
        check_command           check_nrpe!check_users
        }
# Create a servicefor monitoring the uptime of the server
# Change thehost_name to match the name of the host you defined above
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     Load
        check_command           check_nrpe!check_load
        }
# Create a servicefor monitoring CPU load
# Change thehost_name to match the name of the host you defined above
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     SDA1
        check_command           check_nrpe!check_sda1
        }
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     SDA2
        check_command           check_nrpe!check_sda2
        }
# Create a servicefor monitoring memory usage
# Change thehost_name to match the name of the host you defined above
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     Zombie
        check_command           check_nrpe!check_zombie_procs
        }
# Create a servicefor monitoring C:\ disk usage
# Change thehost_name to match the name of the host you defined above
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     Total_procs
        check_command           check_nrpe!check_total_procs
        }
# Create a servicefor monitoring the W3SVC service
# Change thehost_name to match the name of the host you defined above
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     Swap
        check_command           check_nrpe!check_swap
        }
# Create a servicefor monitoring the Explorer.exe process
# Change thehost_name to match the name of the host you defined above
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     Rootdisk
        check_command           check_nrpe!check_rootdisk
        }
define service{
        use                     generic-service
        host_name               linuxserver
        service_description     Sensor
        check_command           check_nrpe!check_sensors

然后修改nagios.cfg，添加cfg_file一個條目

[root@node4 ~]# vim/usr/local/nagios/etc/nagios.cfg

cfg_file=/usr/local/nagios/etc/objects/linuxserver.cfg

檢查語法：

[root@node4 objects]#/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

………………………….

Checking timeperiods...

Checked5 time periods.

Checking for circularpaths between hosts...

Checking for circularhost and service dependencies...

Checking global eventhandlers...

Checking obsessivecompulsive processor commands...

Checking miscsettings...

Total Warnings: 0

Total Errors: 0

然后重啟nagios服務(wù)

[root@node4 ~]# clear

[root@node4 ~]#service nagios restart

Running configurationcheck...done.

Stopping nagios:.done.

Starting nagios:done.

[root@node4 ~]#

然后進nagios界面，就可以看到我們剛剛加入的機器，等一會就會檢查

Nagios的NRPE插件配置

過一段時間監(jiān)測完成以后就可以看到全是ok了

Nagios的NRPE插件配置

另外有需要云服務(wù)器可以了解下創(chuàng)新互聯(lián)scvps.cn，海內(nèi)外云服務(wù)器15元起步，三天無理由+7*72小時售后在線，公司持有idc許可證，提供“云服務(wù)器、裸金屬服務(wù)器、高防服務(wù)器、香港服務(wù)器、美國服務(wù)器、虛擬主機、免備案服務(wù)器”等云主機租用服務(wù)以及企業(yè)上云的綜合解決方案，具有“安全穩(wěn)定、簡單易用、服務(wù)可用性高、性價比高”等特點與優(yōu)勢，專為企業(yè)上云打造定制，能夠滿足用戶豐富、多元化的應(yīng)用場景需求。

網(wǎng)站標題：Nagios的NRPE插件配置-創(chuàng)新互聯(lián)
文章來源：http://chinadenli.net/article28/gejjp.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供定制開發(fā)、面包屑導(dǎo)航、品牌網(wǎng)站制作、響應(yīng)式網(wǎng)站、微信公眾號、微信小程序

聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請盡快告知，我們將會在第一時間刪除。文章觀點不代表本網(wǎng)站立場，如需處理請聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時需注明來源：創(chuàng)新互聯(lián)

猜你還喜歡下面的內(nèi)容

欧美一区二区三区老妇人-欧美做爰猛烈大尺度电-99久久夜色精品国产亚洲a-亚洲福利视频一区二区

Nagios的NRPE插件配置-創(chuàng)新互聯(lián)