Nginx服务器环境下安装配置nagios监控系统

系统监控中，网上评论cacti+nagioslge两个组合，黄金搭档。

nginx+php+mysql环境已配置好，cacti环境已配置好，见《cacti安装配置文档》[http://addcn.blogbus.com/logs/88849862.html]，下面看下nagios的安装。

1、创建nagios用户及组

创建用户组名为nagios用于从web接口执行外部命令。将nagios用户和nginx用户加入组中。

/usr/sbin/useradd nagios

passwd nagios

/usr/sbin/groupadd nagios

/usr/sbin/usermod -g nagios nagios

/usr/sbin/usermod -g nagios addcn

2、安装nagios及插件

wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.2.3.tar.gz

tar zxvf nagios-3.2.3.tar.gz

cd nagios-3.2.3

./configure --with-command-group=nagios --with-user=nagios --prefix=/usr/local/nagios

make all

make install

make install-init

make install-config

make install-commandmode

注：

（1）make install 安装主要的程序、CGI及HTML文件

（2）make install-commandmode 给外部命令访问nagios配置文件权限

（3）make install-config 把配置文件的例子复制到nagios的安装目录

修改管理员邮件地址

vi /usr/local/nagios/etc/objects/contacts.cfg

搜索email，然后修改为你的contact email。

3、安装nagios-plugins

wget http://nchc.dl.sourceforge.net/project/nagiosplug/nagiosplug/1.4.15/nagios-plugins-1.4.15.tar.gz

tar -zxvf nagios-plugins-1.4.15.tar.gz

cd nagios-plugins-1.4.15

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

make

make install

4、启动nagios

/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg #检验配置

/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg #启动

/usr/local/nagios/bin/nagiostats #运行状态

5、搭建Perl环境

nagios依赖PHP环境和perl环境。PHP环境的配置请参考网上资料，下面来搭建Perl环境。

（1）安装perl fcgi模块

wget http://www.cpan.org/modules/by-module/FCGI/FCGI-0.67.tar.gz

tar -zxvf FCGI-0.67.tar.gz

cd FCGI-0.67

perl Makefile.PL

make && make install

（2）安装FCGI-ProcManager

wget http://search.cpan.org/CPAN/authors/id/G/GB/GBJK/FCGI-ProcManager-0.18.tar.gz

tar -xzxf FCGI-ProcManager-0.18.tar.gz

cd FCGI-ProcManager-0.18

perl Makefile.PL

make && make install

（3）安装perl-IO-ALL

wget http://search.cpan.org/CPAN/authors/id/I/IN/INGY/IO-All-0.39.tar.gz

tar zxf IO-All-0.39.tar.gz

cd IO-All-0.39

perl Makefile.PL

make && make install

注：perl模块可在shell下執行"perl -MCPAN -e 'install FCGI'"进行安装。

（4）监听请求

nagios中web界面为cgi程序，我们使用unix socket来监听perl CGI请求并解析。

cd /usr/local/nginx/sbin/

wget http://addcn.googlecode.com/svn/trunk/conf/nagios/nginx-fcgi.pl

vi /usr/local/nginx/sbin/nginx-fcgi.pl

chmod +x /usr/local/nginx/sbin/nginx-fcgi.pl

启动nginx-fcgi.pl

/usr/local/nginx/sbin/nginx-fcgi.pl -l /usr/local/nginx/logs/nginx-fcgi.log -pid /usr/local/nginx/logs/nginx-fcgi.pid -S /usr/local/nginx/logs/nginx-fcgi.sock

添加nginx帐户权限

chown addcn:addcn /usr/local/nginx/logs/nginx-fcgi.sock

chmod 777 /usr/local/nginx/logs/nginx-fcgi.sock

6、配置nginx

nagios下share文件链接到网站根目录，并改名为nagios。

ln -s /usr/local/nagios/share /home/htdocs/nagios

vi /usr/local/nginx/conf/nginx.conf

server

{

# nginx-fcgi.pl

location ~ .cgi$

{

root /usr/local/nagios/sbin;

rewrite ^/nagios/cgi-bin/(.*).cgi /$1.cgi break;

fastcgi_index index.cgi;

fastcgi_pass    unix:/usr/local/nginx/logs/nginx-fcgi.sock;

fastcgi_param   SCRIPT_FILENAME             /usr/local/nagios/sbin$fastcgi_script_name;

fastcgi_param   HTTP_ACCEPT_LANGUAGE        zh-cn;

include /usr/local/nginx/conf/fastcgi.conf;

}

# nagios

#location /nagios {

#    gzip off;

#    alias /usr/local/nagios/share/;

#}

}

重启nginx

/usr/local/nginx/sbin/nginx -t -c /usr/local/nginx/conf/nginx.conf

kill -HUP `cat /usr/local/nginx/logs/nginx.pid`

查看访问

http://192.168.1.36/nagios/

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