nagios完全安裝文檔(CentOS)

第一部分安裝

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Nagios的所有插件的地址：http://www.nagios.org/download/addons

1：安裝LAMP環(huán)境

# yum -y install php httpd gcc glibc glibc-common gd gd-devel

2:建立nagios帳號，請牢記設(shè)置的密碼

# /usr/sbin/useradd nagios && passwd nagios

創(chuàng)建一個用戶組名為nagios用于從web接口執(zhí)行外部命令。將nagios用戶和apache用戶都加入到這個組中。

# /usr/sbin/groupadd nagios

# /usr/sbin/usermod -g nagios nagios

# /usr/sbin/usermod -g nagios apache

3:編譯與安裝nagios

進入到nagios安裝包所在的文件夾下

# tar -zxvf nagios- 3.4.1.tar.gz

# cd nagios

# ./configure --with-command-group=nagios --prefix=/usr/local/nagios

# make all

# make install

# make install-init

# make install-config

# make install-commandmode

# make install-webconf

創(chuàng)建一個nagiosadmin的用戶，用于nagios的Web接口登錄。請牢記你設(shè)置的密碼。

# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

驗證是否正確安裝，進入到安裝路徑（此處是/usr/local/nagios),看是否存在etc bin sbin share var這五個目錄，如果存在，則說明nagios正確的安裝到系統(tǒng)

4:編譯與安裝nagios-plugins

進入到nagios-plugins安裝包所在的文件夾下

# tar -zxvf nagios-plugins-1.4.16.tar.gz

# cd nagios-plugins-1.4.16

# ./configure--with-nagios-user=nagios --with-nagios-group=nagios --prefix=/usr/local/nagios

# make && make install

驗證：ls /usr/local/nagios/libexec會顯示安裝的插件文件，即所有的插件都安裝在libexec這個目錄下

5：啟動服務(wù)

重啟apache服務(wù)讓設(shè)置生效

# service httpd restart

驗證nagios的樣例配置文件

# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

如果沒有報錯，啟動nagios服務(wù)

# service nagios start

6：測試

登錄http://IP地址/nagios/,輸入用戶名和密碼,則nagios安裝成功。

第二部分監(jiān)控linux主機

一.被監(jiān)控機上安裝NRPE

1.安裝客戶端nagios插件

進入到nagios-plugins安裝包所在的文件夾下

# tar -zxvf nagios-plugins-1.4.16.tar.gz

# cd nagios-plugins-1.4.16

# ./configure --prefix=/usr/local/nagios

# make && make install

# useradd nagios

# chown nagios.nagios /usr/local/nagios

# chown -R nagios.nagios /usr/local/nagios/libexec

2.給客戶端安裝NRPE

首先檢查openssl是否存在，否則要安裝openssl

# rpm –qa | grep openssl

openssl-devel-1.0.0-20.el6_2.5.x86_64

openssl-1.0.0-20.el6_2.5.x86_64

進入到nrpe安裝包所在的文件夾下

# tar -zxvf nrpe-2.13.tar.gz

# cd nrpe-2.13

# ./configure --prefix=/usr/local/nagios --enable-ssl --with-ssl-lib=/usr/lib/

# make all

# make install-plugin

# make install-daemon

# make install-daemon-config

返回當(dāng)前NRPE的版本

# /usr/local/nagios/libexec/check_nrpe -H localhost

啟動NRPE

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

3.配置NRPE客戶端

添加nrpe服務(wù)器地址，允許監(jiān)控服務(wù)器對其讀取信息

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

在allowed_hosts中添加允許的服務(wù)器，例如：

allowed_hosts=127.0.0.1,10.126.53.65,172.18.0.236

添加command字段來添加需要監(jiān)控的服務(wù)，例如：

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_disk]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1

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 172.18.0.237 -w 3,2% -c 10,6% -p 30

重啟nrpe

# killall -9 nrpe

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

二.監(jiān)控機上安裝NRPE

1.安裝nrpe

首先檢查openssl是否存在，否則要安裝openssl

# rpm –qa | grep openssl

openssl-devel-1.0.0-20.el6_2.5.x86_64

openssl-1.0.0-20.el6_2.5.x86_64

進入到nrpe安裝包所在的文件夾下

# tar -zxvf nrpe-2.13.tar.gz

# cd nrpe-2.13

# ./configure --prefix=/usr/local/nagios --enable-ssl --with-ssl-lib=/usr/lib/

# make all

# make install-plugin

# make install-daemon

# make install-daemon-config

返回當(dāng)前NRPE的版本

# /usr/local/nagios/libexec/check_nrpe -H localhost

2.commands.cfg中定義外部構(gòu)件nrpe

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

添加check_nrpe

# 'check_nrpe' command definition

define command{

command_name check_nrpe

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

}

3.配置要監(jiān)控的Linux主機

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

修改如下：

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

cfg_dir=/usr/local/nagios/etc/objects/servers

# mkdir /usr/local/nagios/etc/objects/servers/

#chown -R nagios.nagios /usr/local/nagios/etc/objects/servers/

4.配置cgi.cfg文件

# vi /usr/local/nagios/etc/cgi.cfg

修改如下：

use_authentication=1

注意：修改文件權(quán)限

# chmod 777 /usr/local/nagios/var/rw/

# chmod 777 / usr/local/nagios/var/rw/nagios.cmd

5.新建host_service_group.cfg，設(shè)置其內(nèi)容

# vi /usr/local/nagios/etc/objects/servers/host_service_group.cfg

其文件內(nèi)容如下：

define servicegroup{

servicegroup_name host_perfdata

alias host_perfdata

}

define hostgroup{

hostgroup_name host_perfdata

alias host_perfdata

}

6.新建172.18.0.237.cfg，設(shè)置監(jiān)控內(nèi)容

# vi /usr/local/nagios/etc/objects/servers/172.18.0.237.cfg

其文件內(nèi)容如下：

define host{

uselinux-server

host_name 172.18.0.237

host_groupshost_perfdata

alias172.18.0.237

address 172.18.0.237

}

define service{

usegeneric-service

host_name 172.18.0.237

service_groupshost_perfdata

service_descriptioncheck_cpu_load

check_command check_nrpe!check_load

notifications_enabled1

}

define service{

use generic-service

host_name 172.18.0.237

service_groupshost_perfdata

service_descriptioncheck_total_process

check_command check_nrpe!check_total_procs

notifications_enabled1

}

define service {

usegeneric-service

host_name 172.18.0.237

service_groupshost_perfdata

service_descriptionPING

check_commandcheck_ping!200.0,20%!500.0,60%

notifications_enabled1

}

驗證nagios的配置文件是否正確

# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

如果沒有報錯，重新加載nagios服務(wù)

# service nagios reload

三.Nagios報警設(shè)置

3.1網(wǎng)頁報警

1.修改cgi.cfg配置文件

# vi /usr/local/nagios/etc/cgi.cfg

去掉下面幾行注釋

host_unreachable_sound=hostdown.wav

host_down_sound=hostdown.wav

service_critical_sound=critical.wav

service_warning_sound=warning.wav

service_unknown_sound=warning.wav

normal_sound=noproblem.wav

2.在/usr/local/nagios/share/media/下將聲音文件添加進去

3.2通過sendEmail發(fā)送報警

1.安裝sendEmail

進入到sendEmail安裝包所在的文件夾下

# tar -zxvf sendEmail-v1.56.tar.gz

# cd sendEmail-v1.56

# cp sendEmail /usr/local/bin/

# chmod 755 /usr/local/bin/sendEmail

2.測試

使用系統(tǒng)自帶的sendmail測試

# cd (回到根目錄)

# mail -s “I am test”admin@admin< install.log

“I am test”是郵件的主題，在admin@admin中如果能收到郵件，則說明設(shè)置成功。

3.修改commands.cfg文件(其實這一步，可以省略，因為在安裝nagios的時候，已經(jīng)默認(rèn)存在)

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

內(nèi)容如下：

# 'notify-host-by-email' command definition

define command{

command_name notify-host-by-email

command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$

}

# 'notify-service-by-email' command definition

define command{

command_name notify-service-by-email

command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$

}

4.編輯contacts.cfg文件

# /usr/local/nagios/etc/objects/contacts.cfg

內(nèi)容如下：

define contact{

contact_name nagiosadmin; Short name of user

use generic-contact; Inherit default values from generic-contact template (defined above)

alias Nagios Admin ; Full name of user

email admin@admin ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******

service_notification_commands notify-service-by-email

host_notification_commandsnotify-host-by-email

}

5.重啟nagios服務(wù)

# /etc/init.d/nagios reload

第三部分監(jiān)控Windows主機

一．被監(jiān)控機（Windows）上安裝NSClient++客戶端

下載地址：http://nsclient.org/nscp/downloads

目前最新版本：0.4.1.62，根據(jù)需要下載32位或64位機程序。

nagios完全安裝文檔 (CentOS)
.zip格式和.msi格式大同小異，在次處我使用.msi格式，并以32位機為例。

雙擊下載好的程序，開始安裝

nagios完全安裝文檔 (CentOS)

nagios完全安裝文檔 (CentOS)

nagios完全安裝文檔 (CentOS)

選擇：Typical

nagios完全安裝文檔 (CentOS)

勾選：Allow all users to write config file

nagios完全安裝文檔 (CentOS)
在Allowed hosts中填寫監(jiān)控主機的IP，NSClient password中本應(yīng)該填寫監(jiān)控機和

被監(jiān)控機之間的通信密碼，為了方便，在次不進行設(shè)置，勾選Modules to load

下面的所有選項。點擊Next

nagios完全安裝文檔 (CentOS)
點擊Install完成安裝。

進入到服務(wù)中，找到NSClient++(Win32)，雙擊它，選擇登錄，再勾選允許服務(wù)與

桌面交互，最后重啟服務(wù)。

nagios完全安裝文檔 (CentOS)

nagios完全安裝文檔 (CentOS)

二．監(jiān)控機（Linux）添加監(jiān)控項

在/usr/local/nagios/etc/objects/servers/目錄下添加一臺Windows主機

# vi /usr/local/nagios/etc/objects/servers/10.126.53.54.cfg

其文件內(nèi)容如下：

define host{

use linux-server

host_name10.126.53.54

alias10.126.53.54

host_groupshost_perfdata

address 10.126.53.54

}

define service{

use generic-service

host_name 10.126.53.54

service_groups host_perfdata

service_description check_ping

check_command check_ping!100.0,20%!200.0,50%

notifications_enabled 1

}

define service{

usegeneric-service

host_name 10.126.53.54

service_groups host_perfdata

service_description check_memory_useage

check_command check_nt!MEMUSE!-w 80 -c 90

notifications_enabled 1

}

define service{

use generic-service

host_name 10.126.53.54

service_groups host_perfdata

service_description check_cpu_load

check_command check_nt!CPULOAD!-l 5,70,80

notifications_enabled 1

}

define service{

usegeneric-service

host_name 10.126.53.54

service_groups host_perfdata

service_description check_C:\_space

check_command check_nt!USEDDISKSPACE!-l C!-w 80 -c 90

notifications_enabled 1

}

define service{

use generic-service

host_name 10.126.53.54

service_groups host_perfdata

service_description check_E:\_space

check_command check_nt!USEDDISKSPACE!-l E!-w 80 -c 90

notifications_enabled 1

}

驗證nagios的配置文件是否正確

# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

如果沒有報錯，重新加載nagios服務(wù)

# service nagios reload

可以進行測試：

#/usr/local/nagios/libexec/check_nt -H 10.126.53.54 -v CPULOAD -p 12489 -l 5,70,80

#/usr/local/nagios/libexec/check_nt -H 10.126.53.54-v MEMUSE -p 12489

#/usr/local/nagios/libexec/check_nt -H 10.126.53.54 -v USEDDISKSPACE -p 12489 -l C

#/usr/local/nagios/libexec/check_nt -H 10.126.53.54 -v USEDDISKSPACE -p 12489 -l E

第四部分nagvis插件的安裝

Nagvis官方網(wǎng)站：http://www.nagvis.org/

Nagvis下載：http://jaist.dl.sourceforge.net/project/nagvis/NagVis 1.7/nagvis-1.7.3.tar.gz

ndoutils下載：http://sourceforge.net/projects/nagios/files/ndoutils-1.x/

一．安裝ndoutils

查看是否安裝MySQL-devel(它是用來編譯ndoutils)

# rpm -qa | grep mysql

如果沒有安裝mysql-devel，則用yum安裝

# yum -y install mysql-devel

為ndoutils創(chuàng)建數(shù)據(jù)庫

#mysql -u root -p

Enter password:

mysql> create database ndodb;

mysql>grant all privileges on ndodb.* to ndouser@localhost identified by 'ndouser';

mysql>grant all privileges on ndodb.* to ndouser@'%' identified by 'ndouser';

mysql>flush privileges;

mysql>quit

關(guān)聯(lián)mysql頭文件和庫

# ln -s /usr/local/mysql/include/* /usr/include/

# ln -s /usr/local/mysql/lib/* /usr/lib/

注意：/usr/local/mysql是MySQL的安裝目錄

開始安裝ndoutils

# tar zxvf ndoutils-1.5.2.tar.gz

# cd ndoutils-1.5.2

#./configure --prefix=/usr/local/nagios --enable-mysql --enable-ssl --with-ssl-lib=/usr/lib --with-ndo2db-user=nagios --with-ndo2db-group=nagios --with-mysql=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib LDFLAGS=-L/usr/lib

注意：/usr/local/mysql是MySQL的安裝目錄

#make

#make install//此命令可不用執(zhí)行

# cd db/

# ./installdb -u ndouser -p ndouser -h localhost -d ndodb

# cd ../src/

# cp file2sock log2ndo ndo2db-2x ndo2db-3x ndomod-2x.o ndomod-3x.o/usr/local/nagios/bin/

# cd ../config

# cp ndo2db.cfg-sample ndomod.cfg-sample /usr/local/nagios/etc/

# mv /usr/local/nagios/etc/ndo2db.cfg-sample /usr/local/nagios/etc/ndo2db.cfg

# mv /usr/local/nagios/etc/ndomod.cfg-sample /usr/local/nagios/etc/ndomod.cfg

# chmod 644 /usr/local/nagios/etc/ndo*

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

修改內(nèi)容如下：

check_external_commands=1（大概在146行）

command_check_interval=-1（大概在164行）

event_broker_options=-1（大概在222行）

在249行下面添加一行：

broker_module=/usr/local/nagios/bin/ndomod-3x.o config_file=/usr/local /nagios/etc/ndomod.cfg

process_performance_data=1（大概在834行）

# vi /usr/local/nagios/etc/ndomod.cfg

將其修改為：

# cat /usr/local/nagios/etc/ndomod.cfg |grep -v '^#'|sed /^$/d

nagios完全安裝文檔 (CentOS)

# vi /usr/local/nagios/etc/ndo2db.cfg

將其修改為：

# cat /usr/local/nagios/etc/ndo2db.cfg |grep -v '^#'|sed /^$/d

nagios完全安裝文檔 (CentOS)

啟動ndo2db守護進程

# /usr/local/nagios/bin/ndo2db-3x -c /usr/local/nagios/etc/ndo2db.cfg

二．安裝Nagvis

安裝支持庫graphviz

# cp /etc/yum.repos.d/rpmforge.repo /etc/yum.repos.d/rpmforge.repo.bak

# vi /etc/yum.repos.d/rpmforge.repo

將下面的內(nèi)容加入到最后面：

[graphviz-stable]

name=Graphviz - RHEL $releasever - $basearch

baseurl=http://www.graphviz.org/pub/graphviz/stable/redhat/el$releasever/$basearch/os/

enabled=1

gpgcheck=0

skip_if_unavailable=1

[graphviz-stable-source]

name=Graphviz - RHEL $releasever - Source

baseurl=http://www.graphviz.org/pub/graphviz/stable/SRPMS/

enabled=0

gpgcheck=0

skip_if_unavailable=1

[graphviz-stable-debuginfo]

name=Graphviz - RHEL - Debug

baseurl=http://www.graphviz.org/pub/graphviz/stable/redhat/el$releasever/$basearch/debug/

enabled=0

gpgcheck=0

skip_if_unavailable=1

[graphviz-snapshot]

name=Graphviz - RHEL $releasever - $basearch

baseurl=http://www.graphviz.org/pub/graphviz/development/redhat/el$releasever/$basearch/os/

enabled=0

gpgcheck=0

skip_if_unavailable=1

[graphviz-snapshot-source]

name=Graphviz - RHEL $releasever - Source

baseurl=http://www.graphviz.org/pub/graphviz/development/SRPMS/

enabled=0

gpgcheck=0

skip_if_unavailable=1

[graphviz-snapshot-debuginfo]

name=Graphviz - RHEL - Debug

baseurl=http://www.graphviz.org/pub/graphviz/development/redhat/el$releasever/$basearch/debug/

enabled=0

gpgcheck=0

skip_if_unavailable=1

# yum -y install graphviz*

# tar zxvf nagvis-1.7.3.tar.gz

# cd nagvis-1.7.3

# bash install.sh

詳細(xì)請參考官方文檔：http://docs.nagvis.org/1.7/en_US/index.html

名稱欄目：nagios完全安裝文檔(CentOS)
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