centos7 部署安裝nagios

 

部署lap環境

Centos7安裝epel源：

1 rpm -ivh http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm

 

[root@juny-10 ~]# rpm -ivh http://dl.fedoraproject.org/pub/epel/7/x86_64/Packages/e/epel-release-7-11.noarch.rpm

1 yum clean all && yum list

 

安裝所須要的依賴

1 yum install gcc glibc glibc-common php gd gd-devel libpng libmng libjeg zlib -y

 

已安裝:

  gd-devel.x86_64 0:2.0.35-26.el7           libmng.x86_64 0:1.0.10-14.el7           php.x86_64 0:5.4.16-42.el7         

 

做爲依賴被安裝:

  expat-devel.x86_64 0:2.1.0-10.el7_3                          fontconfig-devel.x86_64 0:2.10.95-11.el7                 

  freetype-devel.x86_64 0:2.4.11-15.el7                        httpd.x86_64 0:2.4.6-67.el7.centos.6           

  httpd-tools.x86_64 0:2.4.6-67.el7.centos.6                   libX11-devel.x86_64 0:1.6.5-1.el7    

  libXau-devel.x86_64 0:1.0.8-2.1.el7                          libXpm-devel.x86_64 0:3.5.12-1.el7                       

  libjpeg-turbo-devel.x86_64 0:1.2.90-5.el7                    libpng-devel.x86_64 2:1.5.13-7.el7_2                     

  libxcb-devel.x86_64 0:1.12-1.el7                             libzip.x86_64 0:0.10.1-8.el7        

  mailcap.noarch 0:2.1.41-2.el7                                php-cli.x86_64 0:5.4.16-42.el7 

  php-common.x86_64 0:5.4.16-42.el7                            xorg-x11-proto-devel.noarch 0:7.7-20.el7                 

  zlib-devel.x86_64 0:1.2.7-17.el7    

安裝httpd 而後啓動

1 yum install httpd -y

啓動httpd

1  systemctl start httpd

 

 

新建nagios用戶

1  useradd nagios

 

新建一個運行組

1  groupadd nagcmd

 

把用戶和Apache加到新建的組裏面去

1  usermod -G nagcmd nagios

1  usermod -G nagcmd apache

新建一個Nagios文件夾

把須要用到的安裝包放到文件夾裏面

1 mkdir Nagios

1 cd Nagios/

 

[root@juny-10 Nagios]# ls

nagios-3.5.1.tar.gz  nagios-plugins-2.1.1.tar.gz  nrpe-2.15.tar.gz  vautour_style.zip

[root@juny-10 Nagios]#

解壓併到nagios目錄下

1  tar xvf nagios-3.5.1.tar.gz -C /usr/local/src/ ; cd /usr/local/src/nagios

指定組進行編譯

[root@juny-10 nagios]# ./configure --with-command-group=nagcmd

*** Configuration summary for nagios 3.5.1 08-30-2013 ***:

 

 General Options:

 -------------------------

        Nagios executable:  nagios

        Nagios user/group:  nagios,nagios         #運行用戶

       Command user/group:  nagios,nagcmd      #運行用戶組

            Embedded Perl:  no

             Event Broker:  yes

        Install ${prefix}:  /usr/local/nagios       #安裝的位置

                Lock file:  ${prefix}/var/nagios.lock

   Check result directory:  ${prefix}/var/spool/checkresults

           Init directory:  /etc/rc.d/init.d

  Apache conf.d directory:  /etc/httpd/conf.d          #Apache的conf.d配置文件目錄

             Mail program:  /usr/bin/mail

                  Host OS:  linux-gnu

 

 Web Interface Options:

 ------------------------

                 HTML URL:  http://localhost/nagios/      #登陸地址

                  CGI URL:  http://localhost/nagios/cgi-bin/

 Traceroute (used by WAP):  /usr/bin/traceroute

 

 

Review the options above for accuracy.  If they look okay,

type 'make all' to compile the main program and CGIs.

 

 

[root@juny-10 nagios]# make all

*** Compile finished ***

 

If the main program and CGIs compiled without any errors, you

can continue with installing Nagios as follows (type 'make'

without any arguments for a list of all possible options):

#提示安裝步驟、

  make install

     - This installs the main program, CGIs, and HTML files

 

  make install-init

     - This installs the init script in /etc/rc.d/init.d

 

  make install-commandmode

     - This installs and configures permissions on the

       directory for holding the external command file

 

  make install-config

     - This installs *SAMPLE* config files in /usr/local/nagios/etc

       You'll have to modify these sample files before you can

       use Nagios.  Read the HTML documentation for more info

       on doing this.  Pay particular attention to the docs on

       object configuration files, as they determine what/how

       things get monitored!

 

  make install-webconf

     - This installs the Apache config file for the Nagios

       web interface

 

  make install-exfoliation            #主題相關的，不須要安裝

     - This installs the Exfoliation theme for the Nagios

       web interface

 

  make install-classicui   #主題相關的，不須要安裝

     - This installs the classic theme for the Nagios

       web interface

 

 

*** Support Notes *******************************************

 

If you have questions about configuring or running Nagios,

please make sure that you:

 

     - Look at the sample config files

     - Read the documentation on the Nagios Library at:

           http://library.nagios.com

 

before you post a question to one of the mailing lists.

Also make sure to include pertinent information that could

help others help you.  This might include:

 

     - What version of Nagios you are using

     - What version of the plugins you are using

     - Relevant snippets from your config files

     - Relevant error messages from the Nagios log file

 

For more information on obtaining support for Nagios, visit:

 

       http://support.nagios.com

 

*************************************************************

 

Enjoy.

 

[root@juny-10 nagios]#

[root@juny-10 nagios]# make install

#安裝生成/usr/local/nagios/，其中/usr/local/nagios/share即nagiosWEB訪問界面的站點目錄

[root@juny-10 nagios]# make install-init

#安裝生成/etc/rc.d/init.d/nagios  啓動腳本

/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

 

*** Init script installed ***

[root@juny-10 nagios]# make install-commandmode

#設定相應nagios工做目錄的權限

/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 ***

[root@juny-10 nagios]# make install-config

#安裝生成/usr/local/nagios/etc下的nagios相關配置文件

 

*** 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@juny-10 nagios]#

[root@juny-10 nagios]# make install-webconf

#安裝Nagios的WEB配置文件到Apache的conf.d目錄下

/usr/bin/install -c -m 644 sample-config/httpd.conf /etc/httpd/conf.d/nagios.conf

 

*** Nagios/Apache conf file installed ***

 

到此安裝就結束了

在安裝的時候，make install生成share這個目錄，這個目錄是訪問界面目錄：

[root@juny-10 nagios]# ls /usr/local/nagios/share/

config.inc.php  docs    includes   js        media       rss-corefeed.php  side.php  stylesheets

contexthelp     images  index.php  main.php  robots.txt  rss-newsfeed.php  ssi

 

在make install-init的時候，生成啓動腳本

[root@juny-10 nagios]# ls /etc/init.d/nagios

/etc/init.d/nagios

 

在make install-config的時候，生成了Nagios的相關配置文件；包括之後安裝了plugin等軟件後，配置文件也會放入此目錄

resource.cfg:定義了不少資源變量的調用

[root@juny-10 nagios]# ls /usr/local/nagios/etc/

cgi.cfg  nagios.cfg  objects  resource.cfg

 

在make install-webconf的時候，已經把web-conf的配置文件放入了/etc/httpd/conf.d/下面

[root@juny-10 nagios]# ls /etc/httpd/conf.d/nagios.conf

/etc/httpd/conf.d/nagios.conf  #裏面配置了一個別名，直接引用了/usr/local/nagios/share目錄

 

[root@juny-10 nagios]# vim /etc/httpd/conf.d/nagios.conf

 

 

能夠看到別名和路徑

 

Nagios的主目錄

[root@juny-10 nagios]# ll /usr/local/nagios/

總用量 0

drwxrwxr-x  2 nagios nagios  38 11月  6 01:01 bin  #nagios執行程序的所在目錄

drwxrwxr-x  3 nagios nagios  74 11月  6 01:04 etc  #nagios配置文件目錄；初安裝時只有幾個配置文件

drwxrwxr-x  2 nagios nagios   6 11月  6 01:01 libexec  #監控所用命令、須要安裝nagios-plugins插件纔會有；不是空的

drwxrwxr-x  2 nagios nagios 311 11月  6 01:01 sbin   #nagios的cgi文件所在目錄，外部命令所須要的文件存放目錄

drwxrwxr-x 10 nagios nagios 257 11月  6 01:01 share   #nagios前端頁面

drwxrwxr-x  5 nagios nagios  45 11月  6 01:03 var     #日誌文件

[root@juny-10 nagios]#

 

認識nagios配置文件

[root@juny-10 nagios]# vim /usr/local/nagios/etc/nagios.cfg

log_file=/var/log/nagios/nagios.log                        #日誌位置

cfg_file=/etc/nagios/objects/commands.cfg          #這個文件定義了不少命令

cfg_file=/etc/nagios/objects/contacts.cfg                   #定義聯繫人，怎麼聯繫

cfg_file=/etc/nagios/objects/timeperiods.cfg                #定義了時間段

cfg_file=/etc/nagios/objects/templates.cfg                  #模板（聯繫人，主機，時間）

cfg_file=/etc/nagios/objects/localhost.cfg                  #監控本機相關配置文件

#cfg_file=/etc/nagios/objects/windows.cfg                   #windows，默認不監控

#cfg_file=/etc/nagios/objects/switch.cfg                    #交換機路由器監控，默認不監控

#cfg_file=/etc/nagios/objects/printer.cfg                   #打印機監控，默認不監控

 

#cfg_dir=/etc/nagios/servers                                #定義了服務合集（多個使用）

#cfg_dir=/etc/nagios/printers                               #定義了打印機合集（多個使用）

#cfg_dir=/etc/nagios/switches                               #定義了交換合集（多個使用）

#cfg_dir=/etc/nagios/routers                                #定義了路由合集（多個使用）

resource_file=/etc/nagios/private/resource.cfg 資源變量配置文件，包括$USER1$變量（一個路徑）等

status_update_interval=10                                   #狀態更新時間，單位s

log_rotation_method=d                                       #日誌滾動，默認天

service_check_timeout=60                                    #服務檢查超時時間

host_check_timeout=30                                   #主機檢查超時時間

event_handler_timeout=30                              

notification_timeout=30

ocsp_timeout=5

perfdata_timeout=5

 

認識下cgi文件

[root@juny-10 nagios]# vim /usr/local/nagios/etc/cgi.cfg

main_config_file= /usr/local/nagios/etc/nagios.cfg             #主配置文件

physical_html_path= /usr/local/nagios/share          #物理路徑

url_html_path=/nagios                               #在URL後面加上/nagios才能訪問

use_authentication=1                                #使用認證

use_ssl_authentication=0                          #不使用ssl

authorized_for_system_information=nagiosadmin       #認證用戶

 

測試nagios

重啓Apache服務

[root@juny-10 nagios]# systemctl restart httpd

在瀏覽器輸入ip/nagios

 

 

能夠看到須要用戶名和密碼

查看用戶名和密碼

[root@juny-10 nagios]# vim /etc/httpd/conf.d/nagios.conf

在Directory字段裏面有Auth這三個字段，那麼就能夠使用htpasswd來生成用戶名和密碼

 

[root@juny-10 nagios]# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

New password: 123456

Re-type new password: 123456

Adding password for user nagiosadmin

# -c表示建立，二次添加用戶，不能使用-c參數

 

檢查配置文件

在nagios的目錄下，bin目錄下有一個nagios命令，這個命令能夠幫助咱們對配置文件的檢查工做以及指定相關配置文件

[root@juny-10 nagios]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

 

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

 

 

Total Warnings: 0          #警告

Total Errors:   0           #錯誤

 

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

[root@juny-10 nagios]#

 

 

 

重啓Apache再次測試

[root@juny-10 nagios]# systemctl restart httpd

 

登陸成功

 

可是如今尚未作任何深刻配置，因此如今只是能夠登陸而已！