本文中，物理机IP 192.168.1.105
虚拟linux主机ip 192.168.1.10
安装apache和php
Apache 和Php 不是安装nagios 所必须的，但是nagios提供了web监控界面，通过web监控界面可以清晰的看到被监控主机、资源的运行状态，
因此，安装一个web服务是很必要的。 
需要注意的是，nagios在nagios3.1.x版本以后，配置web监控界面时需要php的支持。
这里我们下载的nagios版本为nagios-3.4.3，因此在编译安装完成apache后，还需要编译php模块，
这里选取的php版本为php5.4.10。

[root@rhel6 ~]# tar xjf httpd-2.2.32.tar.bz2

[root@rhel6 ~]# cd httpd-2.2.32
[root@rhel6 httpd-2.2.32]# ./configure --prefix=/usr/local/apache2

checking for chosen layout... Apache

checking for working mkdir -p... yes

checking build system type... x86_64-unknown-linux-gnu

checking host system type... x86_64-unknown-linux-gnu

checking target system type... x86_64-unknown-linux-gnu

Configuring Apache Portable Runtime library ...

checking for APR... reconfig

configuring package in srclib/apr now

checking build system type... x86_64-unknown-linux-gnu

checking host system type... x86_64-unknown-linux-gnu

checking target system type... x86_64-unknown-linux-gnu

Configuring APR library

Platform: x86_64-unknown-linux-gnu

checking for working mkdir -p... yes

APR Version: 1.5.2

checking for chosen layout... apr

checking for gcc... no

checking for cc... no

checking for cl.exe... no

configure: error: in `/root/httpd-2.2.32/srclib/apr':

configure: error: no acceptable C compiler found in $PATH

See `config.log' for more details

configure failed for srclib/apr

#上面安装记录我们发现，是缺少依赖组件，这里我们检查nagios所需要的支持套件的安装情况，没有安装的全部进行yum安装

[root@rhel6 httpd-2.2.32]# rpm -q gcc glibc glibc-common gd gd-devel xinetd openssl-devel

[root@rhel6 httpd-2.2.32]# rpm -q gcc glibc glibc-common gd gd-devel xinetd openssl-devel

package gcc is not installed

glibc-2.12-1.132.el6.x86_64

glibc-common-2.12-1.132.el6.x86_64

package gd is not installed

package gd-devel is not installed

package xinetd is not installed

package openssl-devel is not installed

[root@rhel6 httpd-2.2.32]# yum install -y gcc gd gd-devel xinetd openssl-devel

#安装nagios前准备工作

[root@rhel6 ~]# groupadd nagios

[root@rhel6 ~]# useradd nagios -g nagios -s /sbin/nologin

[root@rhel6 ~]# mkdir /usr/local/nagios

[root@rhel6 ~]# chown -R nagios:nagios /usr/local/nagios

[root@rhel6 ~]# tar xzvf nagios-3.2.0.tar.gz

[root@rhel6 nagios-3.2.0]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios

*** Configuration summary for nagios 3.2.0 08-12-2009 ***:

 General Options:

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

        Nagios executable:  nagios

        Nagios user/group:  nagios,nagios

       Command user/group:  nagios,nagios

            Embedded Perl:  no

             Event Broker:  yes

        Install ${prefix}:  /usr/local/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.

[root@rhel6 nagios-3.2.0]# make all

[root@rhel6 nagios-3.2.0]# make install

[root@rhel6 nagios-3.2.0]# make install-init  生成init启动脚本

 [root@rhel6 nagios-3.2.0]# make install-config 生成一些模板配置文件

[root@rhel6 nagios-3.2.0]# make install-commandmode 设置相应的权限

 [root@rhel6 nagios-3.2.0]# make install-webconf

为Nagios设置Web验证的密码账号nagiosadmin  

[root@rhel6 nagios-3.2.0]/usr/local/apache2/bin/htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

设置nagios开机自启动

[root@rhel6 nagios-3.2.0]# chkconfig --add nagios
[root@rhel6 nagios-3.2.0]# chkconfig nagios --level 345 on

[root@rhel6 ~]# tar xzvf nagios-plugins-1.4.14.tar.gz

[root@rhel6 ~]# cd nagios-plugins-1.4.14

[root@rhel6 nagios-plugins-1.4.14]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios

[root@rhel6 nagios-plugins-1.4.14]# make && make install