Nagios在Ubuntu server上的安装配置

首先我参看的是Nagios的官方文档，Nagios – Installing Nagios Core From Source——The Industry Standard in IT Infrastructure Monitoring，但是文档写的不够详细，对于安装的部分写的过于简略，缺少了几个步骤。

下面我将叙述详细步骤。

#首先安装必要的软件包：

sudo apt-get install wget build-essential apache2 php5-gd libgd2-xpm libgd2-xpm-dev libapache2-mod-php5

#下载软件包

cd /tmp

wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.4.1.tar.gz
wget http://sourceforge.net/projects/nagiosplug/files/nagiosplug/1.4.15/nagios-plugins-1.4.15.tar.gz
#添加组和用户

useradd nagios

groupadd nagcmd

usermod -a -G nagcmd nagios

#解压缩

tar zxvf nagios-3.4.1.tar.gz

tar zxvf nagios-plugins-1.4.15.tar.gz

cd nagios

./configure --with-nagios-group=nagios --with-command-group=nagcmd -–with-mail=/usr/bin/sendmail

cd /tmp/nagios-plugins-1.4.15

./configure --with-nagios-user=nagios --with-nagios-group=nagios

#安装

make all

# 使用make install来安装主程序,CGI和HTML文件

make install

# 使用make install-init在/etc/rc.d/init.d安装启动脚本

make install-init

# 使用make install-cofig来安装示例配置文件,安装的路径是/usr/local/nagios/etc.

make install-config

# 使用make install-commandmode来配置目录权限

make install-commandmode

Nagios目录功能的简要说明：

bin    Nagios执行程序所在目录，nagios文件即为主程序

etc    Nagios配置文件位置

sbin    Nagios Cgi文件所在目录，也就是执行外部命令所需文件所在的目录

Share    Nagios网页文件所在的目录

var    Nagios日志文件、spid 等文件所在的目录

var/archives    日志归档目录

var/rw    用来存放外部命令文件

#配置apache

将下面的行加入apache配置文件/etc/apache2/httpd.conf的alias模块<IfModule alias_module>，因为我的httpd.conf文件为空，因此自行创建了该模块。

<IfModule alias_module>
#
# Redirect: Allows you to tell clients about documents that used to
# exist in your server's namespace, but do not anymore. The client
# will make a new request for the document at its new location.
# Example:
# Redirect permanent /foo http://localhost/bar 
#
# Alias: Maps web paths into filesystem paths and is used to
# access content that does not live under the DocumentRoot.
# Example:
# Alias /webpath /full/filesystem/path
#
# If you include a trailing / on /webpath then the server will
# require it to be present in the URL.  You will also likely
# need to provide a <Directory> section to allow access to
# the filesystem path.

#
# ScriptAlias: This controls which directories contain server scripts.
# ScriptAliases are essentially the same as Aliases, except that
# documents in the target directory are treated as applications and
# run by the server when requested rather than as documents sent to the
# client.  The same rules about trailing "/" apply to ScriptAlias
# directives as to Alias.
#
ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"
<Directory "/usr/local/nagios/sbin">
#  SSLRequireSSL
Options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
#  Order deny,allow
#  Deny from all
#  Allow from 127.0.0.1
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
</Directory>
Alias /nagios "/usr/local/nagios/share"
<Directory "/usr/local/nagios/share">
#  SSLRequireSSL
Options None
AllowOverride None
Order allow,deny
Allow from all
#  Order deny,allow
#  Deny from all
#  Allow from 127.0.0.1
AuthName "Nagios Access"
AuthType Basic
AuthUserFile /usr/local/nagios/etc/htpasswd.users
Require valid-user
</Directory>
</IfModule>

# 创建apache目录验证文件

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

New password: (输入密码)

Re-type new password: (再输入一次密码)

Adding password for user nagiosadmin

# 重启apache：

service apache2 restart


# 检查Nagios配置文件

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

# 启动Nagios

service nagios start

在浏览器中打开http://<your.nagios.server.ip>/nagios。

Nagios主界面如下图：

登录时要求输入用户名密码，用户名是nagiosadmin，密码即为上面你自己设置的密码。



安装完成。

参考：

http://bbs.chinaunix.net/thread-1394907-1-1.html 【Nagios3.0.5在CentOS5.2中安装（一） 】

http://blog.163.com/jackswu@yeah/blog/static/140629123201091675325673/ 【Apache项目路径重定位】

http://www.ibm.com/developerworks/cn/linux/l-ganglia-nagios-2/ 【Ganglia 和 Nagios，第
2 部分: 使用 Nagios 监视企业集群】