ubuntu14.04下安装Naigos和pnp4nagios

Nagios是一个监视系统运行状态和网络信息的监视系统。Nagios能监视所指定的本地或远程主机以及服务，同时提供异常通知功能等。　　　　

安装环境:ubuntu14.04,全是最新的nagios和nagios插件

useradd nagios

编译安装nagios

tar zxf nagios-4.0..tar.gz

cd nagios-4.0.

./configure --prefix=/usr/local/nagios

make all

make install

make install-init

make install-commandmode

make install-config

make install-webconf

mv cgi/ /usr/local/nagios/cgi-bin

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

编译安装nagios插件

tar zxf nagios-plugins-2.0..tar.gz

cd nagios-plugins-2.0.

./configure --prefix=/usr/local/nagios

make

make install

编译安装nrpe(都得装)

NRPE是nagios的一个扩展，它被用于被监控的服务器上，向nagios监控平台提供该服务器的一些本地的情况。例如，cpu负载、内存使用、硬盘使用等等。NRPE可以称为nagios的for linux 客户端。

apt-get install openssl libssl-dev

tar zxf nrpe-2.15

cd nrpe-2.15

./configure --with-ssl=/usr/bin/openssl --with-ssl-lib=/usr/lib/x86_64-linux-gnu

make all

make install-plugin

make install-daemon

make install-daemon-config

/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

/usr/local/nagios/libexec/check_nrpe ‐H localhost

NRPE v2.

这就说明check_nrpe连接nrpe daemon是正常的，其他被监控的主机都得这样check_nrpe

监控网络流量check_iftraffic

添加Nrpe.cfg

command[check_iftraffic]=/usr/local/nagios/libexec/check_iftraffic -i eth0 -w  -c  -b  -u m

服务定义

define service{

         use                          generic-service

         host_name                    localhost

         service_description          iftraffic

         check_command               check_nrpe!check_iftraffic

}

提示unable to read output的, 被控机的/tmp下有个traffic_ifeth*，把他的属主改成nagios就可以了

Pnp4nagios安装

pnp4nagios是基于RRD轮循(环状)数据库中所提供的综合信息，以可视化图形的方式呈现给用户的一款nagios插件

apt-get install rrdtool librrds-perl

tar zxf pnp4nagios-0.6..tar.gz

cd pnp4nagios-0.6.

./configure --prefix=/usr/local/pnp4nagios

make all

make install

make install-webconf

make install-config

make install-init

配置pnp4nagios

cd /usr/local/pnp4nagios/etc/

mv misccommands.cfg-sample misccommands.cfg

mv nagios.cfg-sample nagios.cfg

mv rra.cfg-sample rra.cfg

cd pages/

mv web_traffic.cfg-sample web_traffic.cfg

可以开启process_perfdata debug模式修改/usr/local/pnp4nagios/etc/process_perfdata.cfg

LOG_LEVEL = 

会在/usr/local/pnp4nagios/var/perfdata.log显示错误日志，方便查找原因

貌似Synchronous Mode在nagios4.x有bug，日志显示一直找不到nagios环境，但是看官方文档更改enable_environment_macros=1应该影响开启nagios环境。

Bulk配置

修改nagios.cfg

process_performance_data=

#

# service performance data

#

service_perfdata_file=/usr/local/pnp4nagios/var/service-perfdata

service_perfdata_file_template=DATATYPE::SERVICEPERFDATA\tTIMET::$TIMET$\tHOSTNAME::$HOSTNAME$\tSERVICEDESC::$SERVICEDESC$\tSERVICEPERFDATA::$SERVICEPERFDATA$\tSERVICECHECKCOMMAND::$SERVICECHECKCOMMAND$\tHOSTSTATE::$HOSTSTATE$\tHOSTSTATETYPE::$HOSTSTATETYPE$\tSERVICESTATE::$SERVICESTATE$\tSERVICESTATETYPE::$SERVICESTATETYPE$

service_perfdata_file_mode=a

service_perfdata_file_processing_interval=

service_perfdata_file_processing_command=process-service-perfdata-file

#

# host performance data #

#

host_perfdata_file=/usr/local/pnp4nagios/var/host-perfdata

host_perfdata_file_template=DATATYPE::HOSTPERFDATA\tTIMET::$TIMET$\tHOSTNAME::$HOSTNAME$\tHOSTPERFDATA::$HOSTPERFDATA$\tHOSTCHECKCOMMAND::$HOSTCHECKCOMMAND$\tHOSTSTATE::$HOSTSTATE$\tHOSTSTATETYPE::$HOSTSTATETYPE$

host_perfdata_file_mode=a

host_perfdata_file_processing_interval=

host_perfdata_file_processing_command=process-host-perfdata-file

修改commands.cfg

define command{

       command_name    process-service-perfdata-file

       command_line    /usr/local/pnp4nagios/libexec/process_perfdata.pl --bulk=/usr/local/pnp4nagios/var/service-perfdata

}

define command{

       command_name    process-host-perfdata-file

       command_line    /usr/local/pnp4nagios/libexec/process_perfdata.pl --bulk=/usr/local/pnp4nagios/var/host-perfdata

}

重启nagios，然后就出图了。

一般使用的是默认模板，可以根据不同需求自定义模板temple

Nagios网页界面之Visual Shell

Nagios 提供的网页界面是自带的CGI程序，目前只提供英文语言，如果动手修改其排版，或者汉化核心CGI程序（C语言），则每一次版本更新都需要进行更改，这将是非常繁锁的工作。为了解决这个问题，我们可以通过读取Nagios监控系统的状态信息，即var/status.dat文件，根据其中的字段值来重新设计显示界面。

Nagios Visual shell (Vshell)是一个使用PHP编写的轻量级开源Nagios网页前端，输出的XHTML+CSS代码可以通过W3C标准验证。个人认为，Vshell的界面配色很一般，看一会儿就是会觉得很辛苦，以后的版本还需要加强美工。

apt-get install php-apc

V-Shell takes advantage of the Alternative PHP Cache system (APC), which is of particular importance if you are managing a large installation.

You may need to increase your PHP 'memory_limit' setting in your system's php.ini file if you're using APC.  For large systems try a setting as high as 256-512MB.

wget http://assets.nagios.com/downloads/exchange/nagiosvshell/vshell.tar.gz

tar zxf vshell.tar.gz

cd vshell

修改install.php

define('TARGETDIR',"/usr/local/vshell");

define('APACHECONF',"/etc/httpd/conf.d");       (centos)

define('APACHECONF',"/etc/apache2/conf.d");   (ubuntu)

chmod +x install.php

./install.php