⑴安装完nagios，继续安装pnp，要注意rrdtool的安装。
tar -xvzf pnp-0.4.13.tar.gz
cd pnp-0.4.13
./configure
make all
make install
make install-config
make install-init
---------------------------------------------------------------------------------
FAQ:
*** Configuration summary for pnp 0.4.13 02-19-2009 ***

  General Options:
  -------------------------         -------------------
  Nagios user/group:                nagios nagios
  Install directory:                /usr/local/nagios
  HTML Dir:                         /usr/local/nagios/share/pnp
  Config Dir:                       /usr/local/nagios/etc/pnp
  Path to rrdtool:                  /usr/local/bin/rrdtool (Version 1.2.23)
  RRDs Perl Modules:                *** NOT FOUND ***
  RRD Files stored in:              /usr/local/nagios/share/perfdata
  process_perfdata.pl Logfile:      /usr/local/nagios/var/perfdata.log
  Perfdata files (NPCD) stored in:  /usr/local/nagios/var/spool/perfdata/
-----------------------------------------
process_perfdata.pl 安装在 /usr/local/nagios/share/
配置示例文件安装在/usr/local/nagios/libexecs
config.php安装于/usr/local/nagios/etc/pnp

⑵修改配置文件
①
cd /usr/local/nagios/etc/pnp/
cp process_perfdata.cfg-sample process_perfdata.cfg
cp npcd.cfg-sample npcd.cfg
cp rra.cfg-sample rra.cfg
chown -R nagios:nagios *
②
vi /usr/local/nagios/etc/pnp/process_perfdata.cfg
....
LOG_FILE = /usr/local/nagios/var/perfdata.log
#
# Loglevel 0=silent 1=normal 2=debug
#
LOG_LEVEL = 2
#先改为2,为debug模式
③

④
修改etc/nagios.cfg
找到如下几项，去掉注释
process_performance_data=1
host_perfdata_command=process-host-perfdata
service_perfdata_command=process-service-perfdata
⑤

⑥nginx下的安全问题,需作如下配置
修改pnp的web服务器配置文件nginx.conf,请注意安全问题，我这里未做安全验证。

㈢测试：
为localhost这台主机在主机图标旁边添加个小太阳标记
vi /usr/local/nagios/etc/nagios.cfg
#为这个主机增加小太阳标记
define host{
        use                   linux-server,host-pnp
        host_name        localhost
        alias                  localhost
        address             127.0.0.1
        }
#重新加载配置文件
service nagios reload
如果正确此时就会生成pnp文件
[root@localhost ~]# ls /usr/local/nagios/share/perfdata/localhost/
Current_Load.rrd   Current_Users.xml  PING.rrd            Root_Partition.xml
Current_Load.xml   HTTP.rrd           PING.xml            Swap_Usage.rrd
Current_Users.rrd  HTTP.xml           Root_Partition.rrd  Swap_Usage.xml

打开网页http://localhost/nagios
点击小太阳就可以看到图表，同访问http://localhost/nagios/pnp




FAQ: 注意可能提示这个模块没有安装：
Time/HiRes.pm模块的安装：
①执行以下命令安装该模块。
#perl -MCPAN -e 'install Time::HiRes'
或安装Time-HiRes-1.9707.tar.gz
②如果打开pnp页面提示Hostname is not set,则检查etc/pnp/里的sample文件都更改正确，检查templates.cfg文件中url的正确性，还不行就等等，别太心急了，装完没那么快出图。