CentOS6.4安装Nagios3.5.0-成都快上网建站

CentOS6.4安装Nagios3.5.0

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一.安装环境的配置

1.关闭防火墙

为了防止因为防火墙的原因影响我们安装的环境,我们对防火墙进行关闭,如果在实际的生产环境中,我们是不建议关闭防火墙的。

[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

[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

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,我们需要重新启动服务器

二.软件的准备

1.安装必要的软件

[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

[root@Nagios ~]# service mysqld start
接着设置更改MySQL root账户的密码

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

三.软件的安装

1.Nagios账户及组的添加

[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

Nagios软件的下载
[root@Nagios ~]# wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.5.0.tar.gz
[root@Nagios ~]# wgethttp://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.16.tar.gz

3.Nagios软件的解压

[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

首先进入Nagios解压后所在的目录

[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/

测试nagios的配置文件

[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!

启动Nagios服务:

[root@Nagios nagios]# service nagios start
Starting nagios: done.
启动httpd服务:

[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  ]

添加访问WEB服务的账户及密码

[root@Nagios nagios]# htpasswd -c /usr/local/nagios/etc/htpasswd.users admin
New password:
Re-type new password:
Adding password for user admin
这个时候就已经添加好了访问web网站的用户了

5.Nagios plugin的安装

首先进入Nagios plugin解压目录

[root@Nagios nagios]# cd ../nagios-plugins-1.4.16
进行编译:

[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


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

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

最后将nagios及httpd加入启动项,并自动启动

[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


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