Redhat 5.2 配置nagios

時間 2019-12-23

標籤 redhat 5.2 配置 nagios 欄目 Linux 简体版

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Redhat 5.2 配置nagioslinux

安裝系統組件
         安裝apache、gcc
         配置apache
安裝nagios組件
         安裝nagios
         安裝nagios-plugins
         安裝nrpe
配置被監控機
配置linux被監控機（客戶端）
配置交換機被監控機（客戶端）
配置windows被監控機（客戶端）
配置郵件監控
ios

安裝組件c++

Apache、gcc glibc glibc-common gd-devel、 openssl、openssl-devel（open安裝未列出）web

net-snmp-libs net-snmp-devel net-snmp net-snmp-utilssql

安裝apache、gccapache

（因爲rpm的依賴關係太煩人，配置yum，舒服多了，具體請見yum安裝）windows

[root@localhost ~]# yum install httpdbash

……服務器

Downloading Packages:網絡

(1/4): apr-util-1.2.7-7.e 100% |=========================| 76 kB 00:00

(2/4): apr-1.2.7-11.i386. 100% |=========================| 123 kB 00:00

(3/4): httpd-2.2.3-11.el5 100% |=========================| 1.1 MB 00:01

(4/4): postgresql-libs-8. 100% |=========================| 196 kB 00:00

warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID 37017186

Importing GPG key 0x37017186 "Red Hat, Inc. (release key) <security@redhat.com>" from http://10.155.2.75/Server/RPM-GPG-KEY-redhat-release

Is this ok [y/N]: y

Running rpm_check_debug

Running Transaction Test

Finished Transaction Test

Transaction Test Succeeded

Running Transaction

Installing: apr ######################### [1/4]

Installing: postgresql-libs ######################### [2/4]

Installing: apr-util ######################### [3/4]

Installing: httpd ######################### [4/4]

……

[root@localhost ~]# yum install gcc

……

Downloading Packages:

(1/5): libgomp-4.1.2-42.e 100% |=========================| 82 kB 00:00

(2/5): glibc-headers-2.5- 100% |=========================| 610 kB 00:00

(3/5): glibc-devel-2.5-24 100% |=========================| 2.0 MB 00:02

(4/5): gcc-4.1.2-42.el5.i 100% |=========================| 5.2 MB 00:07

(5/5): kernel-headers-2.6 100% |=========================| 843 kB 00:01

Running rpm_check_debug

Running Transaction Test

Finished Transaction Test

Transaction Test Succeeded

Running Transaction

Installing: libgomp ######################### [1/5]

Installing: kernel-headers ######################### [2/5]

Installing: glibc-headers ######################### [3/5]

Installing: glibc-devel ######################### [4/5]

Installing: gcc ######################### [5/5]

Installed: gcc.i386 0:4.1.2-42.el5

Dependency Installed: glibc-devel.i386 0:2.5-24 glibc-headers.i386 0:2.5-24 kernel-headers.i386 0:2.6.18-92.el5 libgomp.i386 0:4.1.2-42.el5

Complete!

[root@localhost ~]# yum install glibc glibc-common gd-devel

……

Running Transaction

Installing: zlib-devel ####################### [ 1/12]

Installing: freetype-devel ####################### [ 2/12]

Installing: fontconfig-devel ####################### [ 3/12]

Installing: libpng-devel ####################### [ 4/12]

Installing: libXau-devel ####################### [ 5/12]

Installing: libjpeg-devel ####################### [ 6/12]

Installing: xorg-x11-proto-devel ####################### [ 7/12]

Installing: libX11-devel ####################### [ 8/12]

Installing: libXpm-devel ####################### [ 9/12]

Installing: libXdmcp-devel ####################### [10/12]

Installing: mesa-libGL-devel ####################### [11/12]

Installing: gd-devel ####################### [12/12]

Installed: gd-devel.i386 0:2.0.33-9.4.el5_1.1

Dependency Installed: fontconfig-devel.i386 0:2.4.1-7.el5 freetype-devel.i386 0:2.2.1-19.el5 libX11-devel.i386 0:1.0.3-9.el5 libXau-devel.i386 0:1.0.1-3.1 libXdmcp-devel.i386 0:1.0.1-2.1 libXpm-devel.i386 0:3.5.5-3 libjpeg-devel.i386 0:6b-37 libpng-devel.i386 2:1.2.10-7.1.el5_0.1 mesa-libGL-devel.i386 0:6.5.1-7.5.el5 xorg-x11-proto-devel.i386 0:7.1-9.fc6 zlib-devel.i386 0:1.2.3-3

Complete!

配置apache

注把apache 加入到nagcmd組，以便在經過web Interface 操做nagios是有足夠的權限；

[root@localhost ~]# useradd nagios && passwd nagios //chinahr123$

Changing password for user nagios.

New UNIX password:

BAD PASSWORD: it is based on a dictionary word

Retype new UNIX password:

Sorry, passwords do not match.

New UNIX password:

Retype new UNIX password:

passwd: all authentication tokens updated successfully.

[root@localhost ~]# groupadd nagcmd

[root@localhost ~]# usermod -G nagcmd nagios

[root@localhost ~]# usermod -G nagcmd apache

安裝nagios組件

安裝nagios

http://cdnetworks-kr-2.dl.sourceforge.net/project/nagios/nagios-3.x/nagios-3.2.1/nagios-3.2.1.tar.gz

http://cdnetworks-kr-2.dl.sourceforge.net/project/nagiosplug/nagiosplug/1.4.15/nagios-plugins-1.4.15.tar.gz

[root@localhost src]# tar zxvf nagios-3.2.1.tar.gz

[root@localhost src]# cd nagios-3.2.1

[root@localhost nagios-3.2.1]#./configure --with-command-group=nagcmd --prefix=/usr/local/nagios

[root@localhost nagios-3.2.1]# make all

[root@localhost nagios-3.2.1]# make install

[root@localhost nagios-3.2.1]# make install.init

/usr/bin/install -c -m 755 -d -o root -g root /etc/rc.d/init.d

/usr/bin/install -c -m 755 -o root -g root daemon-init /etc/rc.d/init.d/nagios

[root@localhost nagios-3.2.1]# make install-config

……

*** Config files installed ***

Remember, these are *SAMPLE* config files. You'll need to read

the documentation for more information on how to actually define

services, hosts, etc. to fit your particular needs.

[root@localhost nagios-3.2.1]# make install-commandmode

/usr/bin/install -c -m 775 -o nagios -g nagcmd -d /usr/local/nagios/var/rw

chmod g+s /usr/local/nagios/var/rw

*** External command directory configured ***

驗證安裝在/usr/local/nagios,是否生成目錄bin etc sbin share var.

[root@localhost ~]# cd /usr/local/nagios

[root@localhost nagios]# ls

bin etc sbin share var

安裝nagios-plugins

[root@localhost src]# tar zxvf nagios-plugins-1.4.15.tar.gz

[root@localhost nagios-plugins-1.4.15]#./configure --with-nagios-user=nagios --with-nagios-group=nagios --prefix=/usr/local/nagios

[root@localhost nagios-plugins-1.4.15]# make && make install

驗證是否安裝成功，是否生成以下文件

[root@localhost nagios-plugins-1.4.15]# ls /usr/local/nagios/libexec

check_apt check_disk_smb check_ide_smart check_mrtg check_nwstat check_sensors check_users

check_breeze check_dns check_ifoperstatus check_mrtgtraf check_oracle check_smtp check_wave

check_by_ssh check_dummy check_ifstatus check_nagios check_overcr check_ssh negate

check_clamd check_file_age check_imap check_nntp check_ping check_swap urlize

check_cluster check_flexlm check_ircd check_nt check_pop check_tcp utils.pm

check_dhcp check_ftp check_load check_ntp check_procs check_time utils.sh

check_dig check_http check_log check_ntp_peer check_real check_udp

check_disk check_icmp check_mailq check_ntp_time check_rpc check_ups

配置nagios的WEB接口，也能夠經過以下命令更改用戶密碼，

[root@localhost etc]# /usr/bin/htpasswd -c /usr/local/nagios/etc/htpasswd nagiosadmin

New password:

Re-type new password:

Adding password for user nagiosadmin

[root@localhost etc]# service httpd start

Starting httpd: [ OK ]

編輯httpd.conf，在結尾加上以下內容，保存，啓動apache，service httpd restart

ScriptAlias /nagios/cgi-bin /usr/local/nagios/sbin

Options ExecCGI

AllowOverride None

Order allow,deny

Allow from all

AuthName "Nagios Access"

AuthType Basic

AuthUserFile /usr/local/nagios/etc/htpasswd

Require valid-user

</Directory>

Alias /nagios /usr/local/nagios/share

Options None

AllowOverride None

Order allow,deny

Allow from all

AuthName "Nagios Access"

AuthType Basic

AuthUserFile /usr/local/nagios/etc/htpasswd

Require valid-user

</Directory>

設置開機啓動nagios服務

[root@localhost nagios-plugins-1.4.15]# chkconfig --add nagios

[root@localhost nagios-plugins-1.4.15]# chkconfig nagios on

驗證nagios配置是否正常，此命令之後會常用，warning和error爲0，表示正常，後面不正常的討論，這裏能夠啓動nagios服務

[root@localhost nagios-plugins-1.4.15]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

……

Checking misc settings...

Total Warnings: 0

Total Errors: 0

[root@localhost nagios-plugins-1.4.15]# service nagios start

Starting nagios: done.

安裝nrpe

http://sourceforge.net/projects/nagios/files/nrpe-2.x/nrpe-2.8b1/nrpe-2.8b1.tar.gz/download

安裝以前以前必定要安裝gcc、 openssl、openssl-devel（尤爲是linux被監控機，也是客戶端）安裝以後，是用/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d命令啓動nrpe

tar -zxvf nrpe-2.8b1

cd nrpe-2.8b1

[root@localhost nrpe-2.8b1]# ./configure

[root@localhost nrpe-2.8b1]# make all

[root@localhost nrpe-2.8b1]# make install-plugin

[root@localhost nrpe-2.8b1]# make install-daemon

[root@localhost nrpe-2.8b1]# make install-daemon-config

/usr/bin/install -c -m 775 -o nagios -g nagios -d /usr/local/nagios/etc

/usr/bin/install -c -m 644 -o nagios -g nagios sample-config/nrpe.cfg /usr/local/nagios/etc

[root@localhost nrpe-2.8b1]/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

經過以下命令驗證nrpe是否正常，能夠看到端口5666已經打開

[root@localhost etc]# /usr/local/nagios/libexec/check_nrpe -H localhost

NRPE v2.8b1

[root@localhost etc]#

[root@localhost etc]# netstat -atulnp | grep 'nrpe'

tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 24823/nrpe

以上服務器端（也是就控制端）的nrpe（用於服務器的自身的監控）已經配置完成，接着服務器的nagios監控配置，配置以下nagios.cfg，去掉以下的「#」,每條記錄都對應目錄的相應的配置文件，下表中有說明，host.cfg和service.cfg是不存在的，能夠本身創建，這些cfg文件都是能夠本身創建的，只要在nagios.cfg添加相應的記錄就行。如今咱們只是作服務器自身的監控，只是用的commands.cfg、localhost.cfg，不用修改什麼。

[root@localhost objects]# vi /usr/local/nagios/etc/nagios.cfg

cfg_file=/usr/local/nagios/etc/objects/commands.cfg ;

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

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

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

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

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

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

監控命令
command
nagios發出的哪一個指令來執行某個監控,這也是本身定義的

聯繫人
contact
設置報警聯繫人，通常固然是系統管理員了

監控時間段
timeperiod
7X24小時不間斷仍是週一至週五,或是自定義的其餘時間段

監控交換機
switch
例如主機是否存活,80端口是否開,磁盤使用狀況或者自定義的服務等

被監控主機
localhost
監控機本身服務器

被監控主機
host
所須要監控的服務器,固然能夠是監控機本身

被監控的服務
service
例如主機是否存活,80端口是否開,磁盤使用狀況或者自定義的服務等

保存nagios.cfg後，用service httpd restart重啓nagios服務，若是失敗，用/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg驗證，會提示出問題所在，關於問題解決在後面再將，這裏只是服務器自身監控，應該不會有問題。

在IE下http://IP/nagios，輸入nagiosadmin和密碼(圖1和圖2)

配置被監控機

配置linux被監控機（客戶端）

須要先安裝gcc、openssl、openssl-devel。

先添加一個用戶

[root@localhost ~]# useradd nagios

[root@localhost ~]# passwd nagios //123456

Changing password for user nagios.

New UNIX password:

BAD PASSWORD: it is too simplistic/systematic

Retype new UNIX password:

passwd: all authentication tokens updated successfully.

安裝nagios-plugins-1.4.15.tar.gz

[root@localhost ~]# tar -zxvf nagios-plugins-1.4.15.tar.gz

[root@localhost ~]# cd nagios-plugins-1.4.15

[root@localhost nagios-plugins-1.4.15]# ./configure --prefile=/usr/local/nagios

[root@localhost nagios-plugins-1.4.15]# make

[root@localhost nagios-plugins-1.4.15]# make install

[root@localhost nagios-plugins-1.4.15]# chown nagios.nagios /usr/local/nagios

[root@localhost nagios-plugins-1.4.15]# chown -R nagios.nagios /usr/local/nagios/libexec

安裝nrpe

[root@localhost ~]# tar -zxvf nrpe-2.8b1

[root@localhost ~]# cd nrpe-2.8b1

[root@localhost nrpe-2.8b1]# ./configure

[root@localhost nrpe-2.8b1]# make all

[root@localhost nrpe-2.8b1]# make install-plugin

[root@localhost nrpe-2.8b1]# make install-daemon

[root@localhost nrpe-2.8b1]# make install-daemon-config

編輯nrpe.cfg

[root@localhost ~]# vi /usr/local/nagios/etc/nrpe.cfg

查找以下加上nagios服務器ip地址

allowed_hosts=127.0.0.1,10.155.2.65

保存後，用以下命令啓動nrpe和添加到開機啓動中

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

echo '/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d &> /dev/null' >> /etc/rc.local

驗證

[root@localhost etc]# /usr/local/nagios/libexec/check_nrpe -H localhost

NRPE v2.8b1

[root@localhost etc]# netstat -atulnp | grep 'nrpe'

tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN 24823/nrpe

若是不正常見文章最後的問題和解決（1）

這裏客戶端的配置已經完成，已經能夠到nagios服務器配置command.cfg監控，可是這裏介紹另外一種方法在編輯nrpe.cfg配置命令，nagios服務器會調用客戶端的nrpe命令

vi /usr/local/nagios/etc/nrpe.cfg

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_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_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%

下面這條是本身添加

command[check_ping81]=/usr/local/nagios/libexec/check_ping -H 10.155.0.1 -w 100.0,20% -c 500.0,60%#

command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20 -c 10 -p /dev/hda1

#command[命令名稱]=命令定義

具體使用見幫助

[root@localhost nagios]# ls

bin etc include libexec share

[root@localhost nagios]# pwd

/usr/local/nagios

[root@localhost nagios]# libexec/check_ping -h

check_ping v1.4.15 (nagios-plugins 1.4.15)

<nagiosplug-devel@lists.sourceforge.net>

Use ping to check connection statistics for a remote host.

Usage:

check_ping -H <host_address> -w <wrta>,<wpl>% -c <crta>,<cpl>%

[-p packets] [-t timeout] [-4|-6]

Options:

-h, --help

Print detailed help screen

-V, --version

Print version information

-4, --use-ipv4

Use IPv4 connection

-6, --use-ipv6

Use IPv6 connection

-H, --hostname=HOST

host to ping

-w, --warning=THRESHOLD

warning threshold pair

-c, --critical=THRESHOLD

critical threshold pair

-p, --packets=INTEGER

number of ICMP ECHO packets to send (Default: 5)

-L, --link

show HTML in the plugin output (obsoleted by urlize)

-t, --timeout=INTEGER

Seconds before connection times out (default: 10)

配置nrpe.cfg後，必須重啓nrpe。重啓方法（殺死進程，在重啓），不然更改不會生效

[root@localhost ~]# ps aux|grep nrpe

nagios 3327 0.0 0.0 4880 924 ? Ss Sep02 0:03 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

root 22293 0.0 0.0 3908 648 pts/0 R+ 11:07 0:00 grep nrpe

[root@localhost ~]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

服務器端

測試與客戶端鏈接，以下表示正常

[root@localhost nrpe-2.8b1]# /usr/local/nagios/libexec/check_nrpe -H 10.155.2.81

NRPE v2.8b1

下面表示不正常，見問題與解決（2）

[root@localhost nrpe-2.8b1]# /usr/local/nagios/libexec/check_nrpe -H 10.155.2.81

Connection refused by host

配置nagios.cfg，增長一條記錄

[root@localhost ~]# vi /usr/local/nagios/etc/nagios.cfg

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

cfg_file=/usr/local/nagios/etc/objects/commands.cfg ;此前面已經設置過

配置nagios.cfg，增長一條記錄

vi /usr/local/nagios/etc/objects/commands.cfg

#在後面增長追加以下內容

#check nrpe

define command{

command_name check_nrpe

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

}

mylinux.cfg在目錄中沒有，須要本身添加

[root@localhost ~]# touch /usr/local/nagios/etc/objects/mylinux.cfg

#---------------------------------------------此段定義主機--------------------------------------------------------

define host{

use linux-server

host_name 10.155.2.81-cacti

alias mylinux

address 10.155.2.81

}

#--------------------------------下面定義服務器，也就是監控項------------------------------------------

define service{

use generic-service

host_name 10.155.2.81-cacti

service_description Swap Usage

check_command check_nrpe!check_swap

}

define service{

use generic-service

host_name 10.155.2.81-cacti

service_description Current Load

check_command check_nrpe!check_load

}

define service{

use generic-service

host_name 10.155.2.81-cacti

service_description Partition Usage

check_command check_nrpe!check_hda1

}

define service{

use generic-service

host_name 10.155.2.81-cacti

service_description Current Users

check_command check_nrpe!check_users

}

define service{

use generic-service

host_name 10.155.2.81-cacti

service_description Total Processes

check_command check_nrpe!check_total_procs

}

define service{

use generic-service

host_name 10.155.2.81-cacti

service_description PING

check_command check_nrpe!check_ping81

}

重啓nagios，ie瀏覽(圖3)

配置交換機被監控機（客戶端）

這裏的switch.cfg是交換機的一個監控模板，我保留這個cfg，複製爲switch31.cfg編輯

[root@localhost objects]# vi /usr/local/nagios/etc/nagios.cfg

# Definitions for monitoring a router/switch

#cfg_file=/usr/local/nagios/etc/objects/switch.cfg

cfg_file=/usr/local/nagios/etc/objects/switch31.cfg

幾乎不用改，把host name和address改了，最後一個mrtg我沒用網絡裏沒有註釋掉了

[root@localhost objects]# vi switch31.cfg

define host{

use generic-switch ; Inherit default values from a template

host_name g13a-dell5424-31 ; The name we're giving to this switch

alias Linksys SRW224P Switch ; A longer name associated with the switch

address 10.155.0.31 ; IP address of the switch

hostgroups switches ; Host groups this switch is associated with

}

define hostgroup{

hostgroup_name switches ; The name of the hostgroup

alias Network Switches ; Long name of the group

}

define service{

use generic-service ; Inherit values from a template

host_name g13a-dell5424-31 ; The name of the host the service is associated with

service_description PING ; The service description

check_command check_ping!200.0,20%!600.0,60% ; The command used to monitor the service

normal_check_interval 5 ; Check the service every 5 minutes under normal conditions

retry_check_interval 1 ; Re-check the service every minute until its final/hard state is determined

}

# Monitor uptime via SNMP

define service{

use generic-service ; Inherit values from a template

host_name g13a-dell5424-31

service_description Uptime

check_command check_snmp!-C chrswitch -o sysUpTime.0

}

# Monitor Port 1 status via SNMP

define service{

use generic-service ; Inherit values from a template

host_name g13a-dell5424-31

service_description Port 1 Link Status

check_command check_snmp!-C chrswitch -o ifOperStatus.1 -r 1 -m RFC1213-MIB

}

# Monitor bandwidth via MRTG logs

#define service{

# use generic-service ; Inherit values from a template

# host_name linksys-srw224p

# service_description Port 1 Bandwidth Usage

# check_command check_local_mrtgtraf!/var/lib/mrtg/192.168.1.253_1.log!AVG!1000000,1000000!5000000,5000000!10

# }

Switch就完成，紅色見問題3(圖4)

配置windows被監控機（客戶端）

Windows監控須要在windows安裝一個插件nsclient++，http://nsclient.org/nscp/downloads

下載後解壓到c盤

C:\NSClient>nsclient++ /install

Service NSClientpp installed...

l NSClient++.cpp(227) Service installed!

用記事本編輯nsc.ini，去掉註釋符號」;」除了CheckWMI.dll和RemoteConfiguration.dll

[modules]

FileLogger.dll

CheckSystem.dll

CheckDisk.dll

NSClientListener.dll

NRPEListener.dll

SysTray.dll

CheckEventLog.dll

CheckHelpers.dll

;CheckWMI.dll

CheckExternalScripts.dll

NSCAAgent.dll

LUAScript.dll

;RemoteConfiguration.dll

NRPEClient.dll

CheckTaskSched.dll

[Settings]

allowed_hosts=10.155.2.65/32

[NSClient]

port=12489

C:\NSClient>NSClient++ -start

Starting NSClientpp

C:\NSClient>netstat -an | more

Active Connections

Proto Local Address Foreign Address State

TCP 0.0.0.0:5666 0.0.0.0:0 LISTENING

TCP 0.0.0.0:12489 0.0.0.0:0 LISTENING

服務器

[root@localhost ~]# vi /usr/local/nagios/etc/nagios.cfg

# Definitions for monitoring a Windows machine

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

[root@localhost ~]# vi /usr/local/nagios/etc/objects/windows.cfg

windows.cfg沒有什麼可改的，只是把hostname和ip改了就好了(圖5)

郵件監控

郵件監控能夠配置sendmail，我對sendmail一竅不通，這裏仍是用mail命令完成。首先是編輯nagios.cfg，之前已經設置了，這裏看看就好了

[root@localhost objects]# vi /usr/local/nagios/etc/nagios.cfg

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

這裏要注意的是若是在這設置間隔和期限等是在整個nagios生效的，全部的客戶端都是按照這個配置，若是想單獨設置在各個cfg中單獨配置，一會會講。整個cfg內容沒什麼說的了，contact_name和email，還有就是contactgroup_name在全部的地方都是設置這個名字，不要寫錯，member能夠設置多個用」,」隔開，

[root@localhost objects]# vi contacts.cfg

define contact{

contact_name user1

alias Nagios Admin

service_notification_period 24x7

host_notification_period 24x7

service_notification_options w,u,c,r

host_notification_options d,r

service_notification_commands notify-by-email

host_notification_commands host-notify-by-email

email xxxx@163.com

pager 13800138000

}

define contactgroup{

contactgroup_name admins

alias Nagios Administrators

members user1

}

notify-by-email和host-notify-by-email在command.cfg中定義了（見問題5）

這個就是在服務中單獨設置，就很少講了

define service{

use generic-service ; Name of service template to use

host_name test_nrpe

service_description apache

is_volatile 0 #相似聲音警告功能關閉

check_period 24x7 #監控期限爲24X7

max_check_attempts 1 #最大重試次數

normal_check_interval 1 #標準檢測時間間隔 1分鐘

retry_check_interval 1 #重試時間間隔

contact_groups admins #聯繫組

notification_options w,u,c,r # w,u,c,r 發生這四種狀況時，進行通告。

notification_interval 960 # 通告間隔

notification_period 24x7 #通告過時時間

check_command check_http!100.0,20%!500.0,60%

}

參數說明

服務出了情況通知的時間段，這個時間段是前面 timeperiods.cfg 裏面定義的。

service_notification_period 24x7

主機出現情況時通知的時間段，這個時間段是前面 timeperiods.cfg 裏面定義的。

host_notification_period 24x7

當服務出現 w— 報警 (warning),u— 未知 (unkown),c— 嚴重 (critical),r— 從異常恢復到正常，在這四種狀況下通知聯繫人

service_notification_options w,u,c,r

當主機出現 d— 當機 (down),u— 返回不可達 (unreachable),r— 從異常狀況恢復正常 , 在這 3 種狀況下通知聯繫人

host_notification_options d,u,r

服務出問題通知採用的命令 notify-service-by-email , 這個命令是在 commands.cfg 中定義的 , 做用是給聯繫人發郵件 . 在 nagios2.x 的版本上能夠不同，能夠本身到 commands.cfg 裏看一下；在這裏也能夠設置發送短信的方式通知聯繫人，前提是你要配置有發送知道的腳本，還要到 commands.cfg 裏面添加發送腳本所用到的命令；

service_notification_commands notify-service-by-email

同上 , 主機出問題時採用的也是發郵件的方式通知聯繫人

host_notification_commands notify-host-by-email

指定聯繫的人 email 地址

email yaozhan189@163.com

聯繫人的手機 , 前提是要支持短信通知，這裏沒有啓用經過手機短信的方式發送警報 pager 13800138000

問題和解決

一、

[root@localhost nrpe-2.8b1]# /usr/local/nagios/libexec/check_nrpe -H localhost

Connection refused by host

若是在本機上都出下以下結果，說明nrpe沒有啓動，用啓動命令啓動

二、

[root@localhost nrpe-2.8b1]# /usr/local/nagios/libexec/check_nrpe -H 10.155.2.81

Connection refused by host

多是客戶端nrpe.cfg，沒有加服務器ip地址allowed_hosts=127.0.0.1,10.155.2.6

多是客戶端的防火牆

三、是由於nagios服務器中沒有check_snmp命令，有安裝nagios以前沒有安裝net-snmp和net-snmp-utils組件。網上有人提示安裝組件後在從新安裝nagios-plugins-1.4.15，我沒有成功。(圖6)

[root@localhost nagios]# libexec/check_snmp -h

-bash: libexec/check_snmp: No such file or directory

4網上有文章提示安裝nagios以前，系統須要安裝以下。

yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel openldap openldap-devel nss_ldap openldap-clients openldap-servers perl gd gd-devel jpeg jpeg-devel libpng libpng-devel Net-snmp zlib freetype libart_lgpl cairo-devel pango-devel lrzsz*

本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/wonitazansa1/archive/2010/09/06/5866086.aspx