Nagios4.0.1版本安装适用于RHEL/Centos5.x/6.x或者Fedora17/18/19(一)

我的环境如下：

发展壮大离不开广大客户长期以来的信赖与支持，我们将始终秉承“诚信为本、服务至上”的服务理念，坚持“二合一”的优良服务模式，真诚服务每家企业，认真做好每个细节，不断完善自我，成就企业，实现共赢。行业涉及成都不锈钢雕塑等，在成都网站建设、成都全网营销推广、WAP手机网站、VI设计、软件开发等项目上具有丰富的设计经验。

Centos-6.2

Nagios 4.0.1

Nagios Plugin 1.5

Nagios是一个非常棒的免费的开源的监控工具，它提供给你一个很全面的监控环境，始终密切监视你的机器或者网络，不管是在数据中心还是在你自己的一个小实验室。

步骤1：安装需要的依赖包

需要安装Apache、PHP和一些库像：gcc、glibc、glibc-common、gd、gd-devel、make、net-snmp

[root@taoteng ~]# yum install -y httpd php gcc glibc glibc-common gd gd-devel make net-snmp

步骤2:创建一个nagios用户和组

创建一个新的nagios用户和nagcmd组账户并设置密码。

[root@taoteng ~]# useradd nagios
[root@taoteng ~]# groupadd nagcmd

接下来，添加nagios和Apache用户到nagcmd组。

[root@tecmint]# usermod -G nagcmd nagios

[root@tecmint]# usermod -G nagcmd apache

步骤3：下载Nagios-4.0.1和Nagios-plugin-1.5

在/root目录下创建一个安装包以及后续需要下载的安装包的目录。

[root@taoteng ~]# mkdir /root/nagios

[root@taoteng ~]# cd /root/nagios

现在来下载最新版本的Nagio-4.0.1和Nagios-plugin-1.5通过wget命令

[root@taoteng nagios]# wgethttp://prdownloads.sourceforge.net/sourceforge/nagios/nagios-4.0.1.tar.gz

[root@taoteng nagios]# wgethttps://www.nagios-plugins.org/download/nagios-plugins-1.5.tar.gz

步骤4：提取Nagios和nagios-plugins压缩包

我们需要通过tar命令来提取下载的压缩包里面的文件：

[root@taoteng nagios]# tar -zxvf nagios-4.0.1.tar.gz

[root@taoteng nagios]# tar -zxvf nagios-plugins-1.5.tar.gz

紧接着nagios文件夹里面将会出现解压之后的文件夹

[root@taoteng nagios]# ll

总用量 30668

drwxrwxr-x 18 root root 4096 2月 20 21:22 nagios-4.0.1

-r-xr-xr-x 1 root root 1696847 2月 20 20:58 nagios-4.0.1.tar.gz

drwxr-xr-x 15 nagios nagios 4096 2月 24 00:58 nagios-cn-3.2.3

-r-xr-xr-x 1 root root 9638175 2月 20 20:58 nagios-cn-3.2.3.tar.bz2

drwxr-xr-x 15 200 300 4096 2月 20 22:04 nagios-plugins-1.5

-r-xr-xr-x 1 root root 2428258 2月 20 20:58 nagios-plugins-1.5.tar.gz

配置nagios的核心

现在，首先我们将配置nagios核心，将进入到nagios文件夹里面运行configure命令，如果一切运行顺利将会出现下面的界面：

[root@taoteng nagios]# cd nagios-4.0.1

[root@taoteng nagios-4.0.1]# ./configure --with-command-group=nagcmd

输出示例：

Nagios executable:  nagios        Nagios user/group:  nagios,nagios       Command user/group:  nagios,nagcmd             Event Broker:  yes        Install ${prefix}:  /usr/local/nagios    Install ${includedir}:  /usr/local/nagios/include/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/tracerouteReview the options above for accuracy.  If they look okay,type 'make all' to compile the main program and CGIs.

随后配置和编译所有的的二进制文件，make和make install将会在你的机器上安装所需的二进制文件然后才能继续安装，

[root@taoteng nagios-4.0.1]# make

[root@taoteng nagios-4.0.1]# make install

输出样例：

*** Main program, CGIs and HTML files installed ***You can continue with installing Nagios as follows (type 'make'without any arguments for a list of all possible options):  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

其实从上面的样例上可以看出下步我们需要的操作步骤，接着执行make install-init去安装初始化脚本。

[root@taoteng nagios-4.0.1]# make install-init

从输出的命令行上可以看出我们需要安装外部命令文件(libxce)

[root@taoteng nagios-4.0.1]# make install-commandmode

接下来安装nagios示例文件，运行下面的命令：

[root@taoteng nagios-4.0.1]# make install-config

输出示例：

/usr/bin/install -c -m 775 -o nagios -g nagios -d /usr/local/nagios/etc/usr/bin/install -c -m 775 -o nagios -g nagios -d /usr/local/nagios/etc/objects/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/nagios.cfg /usr/local/nagios/etc/nagios.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/cgi.cfg /usr/local/nagios/etc/cgi.cfg/usr/bin/install -c -b -m 660 -o nagios -g nagios sample-config/resource.cfg /usr/local/nagios/etc/resource.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/templates.cfg /usr/local/nagios/etc/objects/templates.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/commands.cfg /usr/local/nagios/etc/objects/commands.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/contacts.cfg /usr/local/nagios/etc/objects/contacts.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/timeperiods.cfg /usr/local/nagios/etc/objects/timeperiods.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/localhost.cfg /usr/local/nagios/etc/objects/localhost.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/windows.cfg /usr/local/nagios/etc/objects/windows.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/printer.cfg /usr/local/nagios/etc/objects/printer.cfg/usr/bin/install -c -b -m 664 -o nagios -g nagios sample-config/template-object/switch.cfg /usr/local/nagios/etc/objects/switch.cfg*** Config files installed ***Remember, these are *SAMPLE* config files.  You'll need to readthe documentation for more information on how to actually defineservices, hosts, etc. to fit your particular needs.

步骤5：自定义nagios配置文件

打开“contacts.cfg”文件编辑当出现报警状态时候的nagios管理员的电子邮箱

[root@taoteng nagios-4.0.1]# vi /usr/local/nagios/etc/objects/contacts.cfg

输出样例：

###############################################################################

# CONTACTS

###############################################################################

# Just one contact defined by default - the Nagios admin (that's you)

# This contact definition inherits a lot of default values from the 'generic-contact'

# template which is defined elsewhere.

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 xiantao412@sina.com ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******

}

步骤6：安装和配置Nagios的web接口

到目前为止，我们已经完成了所有的配置，接下来将用下面的命令来配置Nagios的web接口。

下面的命令将配置web接口并同时创建一个“nagiosadmin”管理用户。

[root@taoteng nagios-4.0.1]# make install-webconf

接下来的这步将会创建一个密码为“nagiosadmin”记住这个密码，因为待会儿在浏览器中登录的时候将会用到这个密码。

[root@taoteng nagios-4.0.1]# htpasswd -s -c /usr/local/nagios/etc/htpasswd.users nagiosadmin
New password:
Re-type new password:
Adding password for user nagiosadmin

重启Apache服务使新的配置生效。

[root@taoteng nagios-4.0.1]# service httpd restart (On RedHat/CentOS)

[root@taoteng nagios-4.0.1]# systemctl start httpd.service (On Fedora)

步骤7：编译和安装nagios插件。

这儿已经下载了nagios插件在/root/nagios目录下面，直接进去编译和安装即可：

[root@taoteng nagios]# tar -zxvf nagios-plugins-1.5

[root@taoteng nagios]# ./configure --with-nagios-user=nagios --with-nagios-group=nagios

[root@taoteng nagios]# make

[root@taoteng nagios]# make install

步骤8：验证nagios配置文件的是否有错误（这就是nagios其中的一个很不错的地方，可以很清晰的告诉你是否有错误）如果没有什么错误就输出下面的语句：

[root@taoteng nagios]# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfgs

输出示例：

Running pre-flight check on configuration data...

Checking services...

Checked 34 services.

Checking hosts...

Checked 14 hosts.

Checking host groups...

Checked 4 host groups.

Checking service groups...

Checked 2 service groups.

Checking contacts...

Checked 1 contacts.

Checking contact groups...

Checked 1 contact groups.

Checking service escalations...

Checked 0 service escalations.

Checking service dependencies...

Checked 0 service dependencies.

Checking host escalations...

Checked 0 host escalations.

Checking host dependencies...

Checked 0 host dependencies.

Checking commands...

Checked 25 commands.

Checking time periods...

Checked 5 time periods.

Checking for circular paths between hosts...

Checking for circular host and service dependencies...

Checking global event handlers...

Checking obsessive compulsive processor commands...

Checking misc settings...

Total Warnings: 0

Total Errors: 0

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

步骤9：让Nagios服务随计算机开机启动

为了是Nagios和httpd在重启之后工作，我们需要把这两个服务chkconfig一下：

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

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

[root@taoteng ~]#chkconfig --add httpd

[root@taoteng ~]#chkconfig --level 35 httpd on

重启Nagios使更改生效！

[root@taoten ~]#service nagios restart

步骤10：通过浏览器来登录到Nagios

我们的Nagios已经可以开始工作了，浏览器中输入http://192.168.162.153/nagios;输入“nagiosadmin”然后输入密码就okay了！

Nagios Login