pnp4nagios
一、安装pnp4nagios
① 预安装：rrdtool和perl-Time*
yum install rrdtool perl-Time* -y
② tar -axvf pnp4nagios-0.6.4.tar.gz –C /usr/local/src/
③ cd /usr/local/src/
④ ./configure --prefix=/usr/local/pnp4nagios \
--with-nagios-user=nagios \
--with-nagios-group=nagios
⑤ make all
make install
make install-webconf
make install-config
make install-init
make fullinstall
二、PNP4Nagios 与Nagios 整合
① 创建配置文件：
cd /usr/local/pnp4nagios/etc
mv misccommands.cfg-sample misccommands.cfg
mv nagios.cfg-sample nagios.cfg
mv npcd.cfg-sample npcd.cfg
mv process_perfdata.cfg-sample process_perfdata.cfg
mv rra.cfg-sample rra.cfg
cd pages
mv web_traffic.cfg-sampleweb_traffic.cfg
cd ../check_commands
mv check_all_local_disks.cfg-sample check_all_local_disks.cfg
mv check_nrpe.cfg-sample check_nrpe.cfg
②修改nagios 配置文件,vi /usr/local/nagios/etc/nagios.cfg，将相应配置修改为以下内容：
process_performance_data=1
host_perfdata_command=process-host-perfdata
service_perfdata_command=process-service-perfdata
③修改nagios 配置文件commands.cfg 文件中的process-host-perfdata 和
process-service-perfdata：
# 'process-host-perfdata' command definitiondefine command{ command_name process-host-perfdata command_line /usr/local/pnp4nagios/libexec/process_perfdata.pl }# 'process-service-perfdata' command definitiondefine command{ command_name process-service-perfdata command_line /usr/local/pnp4nagios/libexec/process_perfdata.pl }
④将性能图集成到nagios的web页面，即添加小太阳模版，镶嵌在nagios页面上。
vi /usr/local/nagios/etc/objects/templates.cfg
define host{
name host-pnp
register 0
action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$
}
define service{
name srv-pnp
register 0
action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$
}
⑤让PNP4Nagios 显示图形在nagios 的主机中或服务中显示，加入host-pnp
、srv-pnp 配置实例（注：一般只需在主机的定义（hosts.cfg）的第一行中加入：
use host-pnp即可）
例：define host { use host-pnp host_name nagios-server
alias nagios-server
address 10.0.0.77
contact_groups sagroup
check_command check-host-alive
max_check_attempts 5
notification_interval 10
notification_period 24x7
notification_options d,u,r
}
⑥PNP4Nagios 与Apache 整合：
在apache的配置文件httpd.conf中加上下面这行：
include conf.d/pnp4nagios.conf
⑦所有者：
chown –R nagios:nagios /usr/local/nagios
chown –R nagios:nagios /usr/local/pnp4nagios
重启服务：（即可）
/etc/init.d/npcd restart
/etc/init.d/nagios restart
常见问题：
---------------------------------------------------------------------
Starting nagios:touch: cannot touch `/usr/local/nagios/var/nagios.log': Permission denied
done.
解决办法：权限问题，将/usr/local/nagios/var/nagios.log改为chown nagios:nagios问题解决。
---------------------------------------------------------------------
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, root and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Apache/2.2.3 (CentOS) Server at 192.168.1.142 Port 80
解决办法:
http配置错误，与以前的配置同名了，唉！
---------------------------------------------------------------------
checking for SSL headers... configure: error: Cannot find ssl headers
解决办法:yum install openssl-devel
---------------------------------------------------------------------
通过Web访问nagios出现You don't have permission to access /nagios/ on this server提示
安装nagios后，通过web访问nagios时，浏览器提示：You don't have permission to access /nagios/ on this server
问题分析：提示显示是没有权限，首先检测nagios配置文件，如果nagios配置文件都正确。那可能是因为系统缺少php包，我装了两次都是遇到没有php包。
解决方法：使用yum命令直接安装php包：#yum install php
安装好后，再重启httpd命令：service httpd restart。
---------------------------------------------------------------------
描述：安装好pnp4nagios后打开pnp4nagios要求你输入用户名密码，始终输入不正确。然后页出现如下错误提示Authorization Required
This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn't understand how to supply the credentials required.
解决办法：是由于在安装pnp4nagios后在/etc/httpd/conf.d里，已经生成pnp4nagios.conf配置文件，配置文件有 AuthUserFile /usr/local/nagios/etc/htpasswd.user参数，与密码文件名一致，
导致，始终无法正确输入用户密码，修改相应的文件名就可以了。唉纠结了半天才发现。
---------------------------------------------------------------------
错误描述：登入pnp4nagios时开启php.ini的magic_quotes_gpc = On，然后出现错误提示： magic_quotes_gpc is deprecated
解决办法：magic_quotes_gpc = Off
---------------------------------------------------------------------
错误描述：service nagios restart
Running configuration check...done.
Stopping nagios: done.
Starting nagios:su: warning: cannot change directory to /dev/null: Not a directory
This account is currently not available.
原因未知，反正可以正常使用程序。
