Nagios（六）——pnp4nagios 绘制图表
之前用pnp 整合到nagios中，发现总是没数据，图表也出不来，不知道是什么原因，找了资料发现现在用的更多还是pnp4nagios ，便下载试验一下，还真的成功了，配置如下：1.安装RRDTool# tar zxvf rrdtool-1.4.7.tar.gz# ./configure --prefix=/usr/local/rrdtool编译的时候出现了2个错误：(1)configure: error: Please fix the library issues listed above and try again.解决办法：# tar zxvf cgilib-0.5.tar.gz# cd cgilib-0.5# make# cp libcgi.a /usr/local/lib# cp cgi.h /usr/include # yum -y install libart_lgpl-devel# yum -y install pango-devel* cairo-devel* (2)在make的时候报错：Can't locate ExtUtils/MakeMaker.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at Makefile.PL line 1. 解决办法：yum install perl-ExtUtils-CBuilder perl-ExtUtils-MakeMaker 安装完重新编译即可。# ./configure --prefix=/usr/local/rrdtool# make# make install 2.安装pnp4nagios# tar zxvf pnp4nagios-0.6.19.tar.gz# cd pnp4nagios-0.6.19# ./configure --prefix=/usr/local/pnp4nagios --with-nagios-user=nagios # make all# make install# make install-webconf# make install-config# make install-init 安装完成后，通过模板文件，创建配置文件# cd /usr/local/pnp4nagios/etc/# mv nagios.cfg-sample nagios.cfg# mv rra.cfg-sample rra.cfg# mv misccommands.cfg-sample misccommands.cfg# cd pages/# mv web_traffic.cfg-sample web_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# mv check_nwstat.cfg-sample check_nwstat.cfg 3.编辑httpd.conf打开httpd.conf并添加以下内容：Alias /pnp4nagios "/usr/local/pnp4nagios/share"<Directory "/usr/local/pnp4nagios/share"> AllowOverride None Order allow,deny Allow from all AuthName "Nagios Access" AuthType Basic AuthUserFile /usr/local/nagios/etc/htpasswd Require valid-user <IfModule mod_rewrite.c> # Turn on URL rewriting RewriteEngine On Options symLinksIfOwnerMatch # Installation directory RewriteBase /pnp4nagios/ # Protect application and system files from being viewed RewriteRule "^(?:application|modules|system)/" - # Allow any files or directories that exist to be displayed directly RewriteCond "%{REQUEST_FILENAME}" !-f RewriteCond "%{REQUEST_FILENAME}" !-d # Rewrite all other URLs to index.php/URL RewriteRule "^.*$" "index.php/$0" </IfModule></Directory>配置完成后保存退出。 4.编辑template.cfg 文件添加以下内容：# vim /usr/local/nagios/etc/objects/templates.cfgdefine host { name hosts-pnp register 0 action_url /pnp4nagios/graph?host=$HOSTNAME$ process_perf_data 1}define service { name services-pnp register 0 action_url /pnp4nagios/graph?host=$HOSTNAME$&srv=$SERVICEDESC$ process_perf_data 1} 5.编辑hosts.cfg和services.cfg 添加小太阳标示# vim /usr/local/nagios/etc/hosts.cfgdefine host{ use linux-server,hosts-pnp host_name node-1 alias lamp address 192.168.30.110} # vim /usr/local/nagios/etc/services.cfgdefine service{ use generic-service,services-pnp host_name node-1 service_description check_users check_command check_nrpe!check_users max_check_attempts 5 normal_check_interval 1} 6.编辑commands.cfg 添加相应命令# vim /usr/local/nagios/etc/objects/commands.cfg# 'process-host-perfdata' command definitiondefine command{ command_name process-host-perfdata command_line /usr/local/nagios/libexec/process_perfdata.pl} # 'process-service-perfdata' command definition define command{ command_name process-service-perfdata command_line /usr/local/nagios/libexec/process_perfdata.pl}注意：这里为了方便管理，将process_perfdata.pl 复制到/usr/local/nagios/libexec/目录下# cp /usr/local/pnp4nagios/libexec/process_perfdata.pl /usr/local/nagios/libexec/ 7.检查并重启nagios通过nagios –v 参数检查配置是否有错误存在。Total Warnings: 0Total Errors: 0确认无错误后，重启nagios# service nagios restartRunning configuration check...done.Stopping nagios: .done. 效果如下：点击小太阳进入测试页面
注：只有在前面准备阶段把基础环境都配置好，这里的环境测试才能全部通过的。如果提示缺少Php 相关包，可以通过yum –y php-* 进行安装 按照图中提示删除或者重命名其安装文件install.php。这里选择重命名的方式。# mv /usr/local/pnp4nagios/share/install.php/usr/local/pnp4nagios/share/install.php.bak 8.编辑nagios.cfg，开启数据接收功能# vim /usr/local/nagios/etc/nagios.cfgprocess_performance_data=1enable_environment_macros=1service_perfdata_command=process-service-perfdatahost_perfdata_command=process-host-perfdata 9.重启nagios 服务之后即可看到图表注意：打开的时候遇到了以下的错误：
根据提示，是权限不够的问题：# chmod 750 /var/lib/php/session/# chown nagios.nagios /var/lib/php/session/ 刷新网页之后即可看到有图表出现：
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