監控利器nagios的詳細安裝文檔

1. 編譯nagios core

添加用戶和組: nagios
也可使用其餘用戶來運行nagios, 非nagios用戶須要在configure時設置參數

[root@localhost ~]# useradd nagios

[root@localhost ~]# passwd nagios

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.

下載nagios源碼包

[root@localhost ~]# su - nagios

[nagios@localhost ~]$ mkdir downloads

[nagios@localhost ~]$ cd downloads/

[nagios@localhost downloads]$ wget 'http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.4.1.tar.gz'

[nagios@localhost downloads]$ cd

[nagios@localhost ~]$ mkdir build

[nagios@localhost ~]$ cd build/

[nagios@localhost build]$ tar -zxvf ../downloads/nagios-3.4.1.tar.gz

configure以前，先安裝系統中的庫文件
將安裝盤放入光驅後，使用mount命令掛載，而後使用rpm命令安裝庫文件

[root@localhost ~]# mount /dev/cdrom /mnt/

mount: block device /dev/cdrom is write-protected, mounting read-only

[root@localhost ~]# cd /mnt/Server/

[root@localhost Server]# rpm -ivh gd-devel-2.0.33-9.4.el5_1.1.i386.rpm fontconfig-devel-2.4.1-7.el5.i386.rpm freetype-devel-2.2.1-21.el5_3.i386.rpm libX11-devel-1.0.3-11.el5.i386.rpm libXpm-devel-3.5.5-3.i386.rpm gd-2.0.33-9.4.el5_1.1.i386.rpm libjpeg-devel-6b-37.i386.rpm libpng-devel-1.2.10-7.1.el5_3.2.i386.rpm libXau-devel-1.0.1-3.1.i386.rpm libXdmcp-devel-1.0.1-2.1.i386.rpm xorg-x11-proto-devel-7.1-13.el5.i386.rpm mesa-libGL-devel-6.5.1-7.7.el5.i386.rpm

[root@localhost Server]# sudo rpm -ivh apr-devel-1.2.7-11.el5_3.1.i386.rpm

[root@localhost Server]# rpm -ivh apr-util-devel-1.2.7-7.el5_3.2.i386.rpm apr-1.2.7-11.el5_3.1.i386.rpm pcre-devel-6.6-2.el5_1.7.i386.rpm

完成後，開始configure nagios
咱們將nagios安裝在/home/nagios/nagios目錄下

[nagios@localhost build]$ cd nagios/

[nagios@localhost nagios]$ ./configure --prefix=/home/nagios/nagios

*** Configuration summary for nagios 3.4.1 05-11-2012 ***:

General Options:

-------------------------

       Nagios executable:  nagios

       Nagios user/group:  nagios,nagios

      Command user/group:  nagios,nagios

           Embedded Perl:  no

            Event Broker:  yes

       Install ${prefix}:  /home/nagios/nagios

               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

            Mail program:  /bin/mail

                 Host OS:  linux-gnu

Web Interface Options:

------------------------

                HTML URL:  http://localhost/nagios/

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

Traceroute (used by WAP):  /bin/traceroute

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

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

編譯之後能夠看到以上信息，說明配置正確，咱們開始make 和 make install

[nagios@localhost nagios]$ make all

[nagios@localhost nagios]$ make install

[root@localhost nagios]# make install-init

   #經過make install-init 命令能夠再/etc/rc.d/init.d目錄下建立Nagios啓動腳本，須要root用戶

[nagios@localhost nagios]$ make install-commandmode

   #經過make install-commandmode命令來配置目錄權限

[nagios@localhost nagios]$ make install-config

   #make install-config命令用來安裝Nagios示例配置文件，這裏的安裝路徑是/home/nagios/nagios/etc

  #設置開機啓動，需root用戶

[root@localhost ~]# chkconfig --add nagios

[root@localhost ~]# chkconfig --level 35 nagios on

[root@localhost ~]# chkconfig --list nagios

nagios          0:off   1:off   2:off   3:on    4:on    5:on    6:off

2. 編譯nagios 插件

[nagios@localhost downloads]$ wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.16.tar.gz

[nagios@localhost build]$ tar -zxvf ../downloads/nagios-plugins-1.4.16.tar.gz

[nagios@localhost nagios-plugins-1.4.16]$ ./configure --prefix=/home/nagios/nagios/

[nagios@localhost nagios-plugins-1.4.16]$ make

[nagios@localhost nagios-plugins-1.4.16]$ make install

3. 安裝和配置apache、PHP

安裝apr和apr-util、pcre

[nagios@localhost downloads]$ wget http://mirrors.tuna.tsinghua.edu.cn/apache//apr/apr-1.4.6.tar.gz

[nagios@localhost build]$ tar -zxvf ../downloads/apr-1.4.6.tar.gz

[nagios@localhost build]$ cd apr-1.4.6/

[nagios@localhost apr-1.4.6]$ ./configure --prefix=/home/nagios/apr

[nagios@localhost apr-1.4.6]$ make

[nagios@localhost apr-1.4.6]$ make install

[nagios@localhost downloads]$ wget http://mirrors.tuna.tsinghua.edu.cn/apache//apr/apr-util-1.5.1.tar.gz

[nagios@localhost downloads]$ cd ../build/

[nagios@localhost build]$ tar -zxvf ../downloads/apr-util-1.5.1.tar.gz

[nagios@localhost apr-util-1.5.1]$ ./configure --prefix=/home/nagios/apr-util --with-apr=/home/nagios/apr/

[nagios@localhost apr-util-1.5.1]$ make

[nagios@localhost apr-util-1.5.1]$ make  install

[nagios@localhost downloads]$ wget http://sourceforge.net/projects/pcre/files/pcre/8.31/pcre-8.31.tar.gz/download

[nagios@localhost downloads]$ cd ../build/

[nagios@localhost build]$ tar -zxvf ../downloads/pcre-8.31.tar.gz

[nagios@localhost pcre-8.31]$ ./configure --prefix=/home/nagios/pcre

[nagios@localhost pcre-8.31]$ make

[nagios@localhost pcre-8.31]$ make install

如今就已經安裝好apr和apr-util、pcre了，再來編譯下apache

[nagios@localhost downloads]$ wget http://mirror.bit.edu.cn/apache//httpd/httpd-2.4.3.tar.gz

[nagios@localhost build]$ tar -zxvf ../downloads/httpd-2.4.3.tar.gz

[nagios@localhost build]$ cd httpd-2.4.3/

[nagios@localhost httpd-2.4.3]$ ./configure --prefix=/home/nagios/apache2 --with-apr=/home/nagios/apr --with-apr-util=/home/nagios/apr-util/ --with-pcre=/home/nagios/pcre/

[nagios@localhost httpd-2.4.3]$ make

[nagios@localhost httpd-2.4.3]$ make install

如今安裝PHP

[nagios@localhost downloads]$ wget http://cn2.php.net/get/php-5.4.7.tar.gz/from/hk2.php.net/mirror

[nagios@localhost build]$ tar -zxvf ../downloads/php-5.4.7.tar.gz

[nagios@localhost build]$ cd php-5.4.7/

[nagios@localhost php-5.4.7]$ ./configure --prefix=/home/nagios/php --with-apxs2=/home/nagios/apache2/bin/apxs

[nagios@localhost php-5.4.7]$ make -j  10

[nagios@localhost php-5.4.7]$ make test  

[nagios@localhost php-5.4.7]$ make install

配置apache：

首先在Apache配置文件/home/nagios/apache2/conf/httpd.conf中修改Apache進程的啓動用戶爲nagios，即找到：

User daemon

Group daemon

修改成：

User nagios

Group nagios

而後找到：

   DirectoryIndex index.html

修改成：

   DirectoryIndex index.html index.php

再找到：

Listen 80

修改爲：

Listen 8080

接着增長：

   AddType application/x-httpd-php .php

安全起見，通常要求必須通過受權才能訪問Nagios的web監控界面，所以須要增長驗證配置，即在httpd.conf文件的最後添加以下信息：

#setting for nagios

ScriptAlias /nagios/cgi-bin "/home/nagios/nagios/sbin/"

<Directory "/home/nagios/nagios/sbin">

   AuthType Basic

   Options ExecCGI

   AllowOverride None

   Order allow,deny

   Allow from all

   AuthName "Nagios Access"

   AuthUserFile /home/nagios/nagios/etc/htpasswd

   Require valid-user

</Directory>

Alias /nagios "/home/nagios/nagios/share"

<Directory "/home/nagios/nagios/share">

   AuthType Basic

   Options None

   AllowOverride None

   Order allow,deny

   Allow from all

   AuthName "nagios Access"

   AuthUserFile /home/nagios/nagios/etc/htpasswd

   Require valid-user

</Directory>

建立Apache目錄驗證文件

在上面的配置中，制定了目錄驗證文件htpasswd，下面建立這樣一個文件：

[nagios@localhost ~]$ /home/nagios/apache2/bin/htpasswd -c /home/nagios/nagios/etc/htpasswd nagiosadmin

這樣就在/home/nagios/nagios/etc目錄下建立了一個htpasswd驗證文件，對於的用戶名爲nagiosadmin。當經過http://ip:8080/nagios訪問web監控界面是就須要輸入用戶名和密碼了。

啓動Apache服務：

[nagios@localhost ~]$ /home/nagios/apache2/bin/apachectl start

而後用netstat -nltp命令查看對應的程序端口起來了沒有。

注意：

若是在nagios頁面下沒法解析CGI文件，那就在/home/nagios/nagios/conf/httpd.conf文件中將LoadModule cgid_module modules/mod_cgid.so這行的#去掉。而後重啓一下apache就能夠看到主機的狀態了。