CentOS 6.4安装Nagios 3.5.0监控利器的教程

在centos6.4系统中，安装与配置nagios3.5.0的方法。

一，安装环境的配置
1，关闭防火墙

复制代码代码示例:

	[root@Nagios ~]# service iptables stop

	iptables: Flushing firewall rules:                         [  OK  ]

	iptables: Setting chains to policy ACCEPT: filter          [  OK  ]

	iptables: Unloading modules:                               [  OK  ]

	[root@Nagios ~]# chkconfig iptables off

2，关闭SELinux
如果未关闭SELinux，则可能在安装完成后，会出现Internal Server Error错误
编辑/etc/selinux/config

复制代码代码示例:

	[root@Nagios ~]# vim /etc/selinux/config

	将SELINUX=disabled

	# This file controls the state of SELinux on the system.

	# SELINUX= can take one of these three values:

	#     enforcing - SELinux security policy is enforced.

	#     permissive - SELinux prints warnings instead of enforcing.

	#     disabled - No SELinux policy is loaded.

	SELINUX=disabled

	# SELINUXTYPE= can take one of these two values:

	#     targeted - Targeted processes are protected,

	#     mls - Multi Level Security protection.

	SELINUXTYPE=targeted

3，修改hosts文件

复制代码代码示例:

	已知我们这台机器的主机名为Nagios,则修改/etc/hosts

	127.0.0.1  Nagios localhost localhost.localdomain localhost4 localhost4.localdomain4

	::1         localhost localhost.localdomain localhost6 localhost6.localdomain6

添加上面红色部分即可，否则启动apache服务的时候可能出现
Starting httpd: httpd: apr_sockaddr_info_get() failed for Nagios

做完以上3个步骤后，需要重启服务器。

二，软件的准备
1，安装必要的软件

复制代码代码示例:

	[root@Nagios ~]# yum -y install wget make openssl openssl-devel httpd php gcc glibc \

	> glibc-common gd gd-devel net-snmp mysql \

	> mysql-server mysql-devel php-mysql perl perl-devel gnutls gnutls-devel

2，MySQL的配置（此步可省略）
虽然现在还并未使用MySQL,但是在以后的配置需要用到。
首先启动MySQL服务器

复制代码代码示例:

[root@Nagios ~]# service mysqld start

接着设置更改MySQL root账户的密码

复制代码代码示例:

[root@Nagios ~]# mysqladmin -u root password 123456

三，软件的安装
1，Nagios账户及组的添加

复制代码代码示例:

	[root@Nagios ~]# useradd nagios

	[root@Nagios ~]# groupadd nagcmd

	[root@Nagios ~]# usermod -a -G nagcmd nagios

	[root@Nagios ~]# usermod -a -G nagcmd apache

2，软件的下载

复制代码代码示例:

	Nagios软件的下载

	[root@Nagios ~]# wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.5.0.tar.gz

	[root@Nagios ~]# wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.16.tar.gz

3，Nagios软件的解压

复制代码代码示例:

	[root@Nagios ~]# tar zxvf nagios-3.5.0.tar.gz

	[root@Nagios ~]# tar zxvf nagios-plugins-1.4.16.tar.gz

4，Nagios的编译与安装
1）、首先进入Nagios解压后所在的目录

复制代码代码示例:

[root@Nagios ~]# cd nagios
[root@Nagios nagios]# ./configure --with-command-group=nagcmd
[root@Nagios nagios]# make all
[root@Nagios nagios]# make install
[root@Nagios nagios]# make install-init
[root@Nagios nagios]# make install-config
[root@Nagios nagios]# make install-commandmode
[root@Nagios nagios]# make install-webconf

[root@Nagios nagios]# cp -R contrib/eventhandlers/ /usr/local/nagios/libexec/
[root@Nagios nagios]# chown -R nagios:nagios /usr/local/nagios/libexec/eventhandlers/

2）、测试nagios的配置文件

复制代码代码示例:

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

	 

如果最后出现
Total Warnings: 0
Total Errors: 0

Things look okay - No serious problems were detected during the pre-flight check
就证明nagios配置无误可正常启动！

3）、启动Nagios服务：

复制代码代码示例:

	[root@Nagios nagios]# service nagios start

	Starting nagios: done.

启动httpd服务：

复制代码代码示例:

	[root@Nagios nagios]# service httpd start

	Starting httpd: httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for ServerName    [  OK  ]

4）、添加访问WEB服务的账户及密码

复制代码代码示例:

	[root@Nagios nagios]# htpasswd -c /usr/local/nagios/etc/htpasswd.users admin

	New password:

	Re-type new password:

	Adding password for user admin

此时已添加好了访问web网站的用户。

5，Nagios plugin的安装
首先，进入Nagios plugin解压目录

复制代码代码示例:

[root@Nagios nagios]# cd ../nagios-plugins-1.4.16

进行编译：

复制代码代码示例:

	[root@Nagios nagios-plugins-1.4.16]# ./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-extra-opts --enable-perl-modules --enable-libtap

	编译成功后，会出现如下信息：

	          --with-apt-get-command:

	             --with-ping6-command: /bin/ping6 -n -U -w %d -c %d %s

	              --with-ping-command: /bin/ping -n -U -w %d -c %d %s

	                      --with-ipv6: yes

	                     --with-mysql: /usr/bin/mysql_config

	                   --with-openssl: yes

	                    --with-gnutls: no

	              --enable-extra-opts: yes

	                      --with-perl: /usr/bin/perl

	            --enable-perl-modules: yes

	                    --with-cgiurl: /nagios/cgi-bin

	              --with-trusted-path: /bin:/sbin:/usr/bin:/usr/sbin

	                  --enable-libtap: yes

#-----插件的安装

复制代码代码示例:

	[root@Nagios nagios-plugins-1.4.16]# make

	[root@Nagios nagios-plugins-1.4.16]# make install

将nagios及httpd加入启动项，并自动启动：

复制代码代码示例:

	[root@Nagios nagios-plugins-1.4.16]# chkconfig --add nagios

	[root@Nagios nagios-plugins-1.4.16]# chkconfig --level 35 nagios on

	[root@Nagios nagios-plugins-1.4.16]# chkconfig --add httpd

	[root@Nagios nagios-plugins-1.4.16]# chkconfig --level 35 httpd on

(责任编辑：IT)

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CentOS 6.4安装Nagios 3.5.0监控利器的教程