install nagios pnp4nagios on centos 6

liuhongyu

• 安装配置Apache、PHP(忽略此次安装步骤)
  
• 安装nagios
  rpm -Uvh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
  rpm -Uvh http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
  yum -y install nagios nagios-plugins-all nagios-plugins-nrpe nrpe php httpd bc
  
• 创建密码文件
  htpasswd -c /etc/nagios/passwd nagiosadmin
  (此步完成即可通过Web访问Nagios)
  http://yourip/nagios
  
• 安装PNPNagios
  yum -y install perl-Time-HiRes pnp4nagios
  若提示没有pnp4nagios软件包
  yum -y groupinstall "Development Tools"
  wget https://sourceforge.net/projects/pnp4nagios/files/latest
  mv latest pnp4nagios-Version.tar.gz
  tar -xvzf pnp4nagios-Version.tar.gz
  yum -y install rrdtool rrdtool-perl
  cd pnp4nagios-0.6.25
  ./configure
  make all
  make fullinstall
  mv /usr/local/pnp4nagios/share/install.php /usr/local/pnp4nagios/share/install.php.ignore
  ln -s /usr/local/pnp4nagios/ /var/www/html/pnp4nagios
  
• 修改 /etc/nagios/nagios.cfg
  process_performance_data=1                                          // 将0 修改为 1
  host_perfdata_command=process-host-perfdata               //    取消注释
  service_perfdata_command=process-service-perfdata       // 取消注释
  
• 　　修改 /etc/nagios/objects/commands.cfg (注释默认配置再添加)
  
  
  
  
  
  define command {
  command_name    process-service-perfdata
  command_line    /usr/bin/perl /usr/local/pnp4nagios/libexec/process_perfdata.pl
  }
  define command {
  command_name    process-host-perfdata
  command_line    /usr/bin/perl /usr/local/pnp4nagios/libexec/process_perfdata.pl -d HOSTPERFDATA
  }
  commands.cfg Code
  
• 　　修改 /etc/nagios/cgi.cfg 里的用户名是无效的
  default_user_name=nagiosadmin
  
  
• 　　修改 /etc/httpd/conf.d/pnp4nagios.conf
  ＃AuthUserFile /usr/local/nagios/etc/htpasswd.users ＃ 注释这一行
  AuthUserFile /etc/nagios/passwd   ＃ 添加此行
  
  
• 　　重启nagios 和 apache
  chkconfig httpd on
  chkconfig nrpe on
  chkconfig npcd on
  chkconfig nagios on
  打开 http://yourip/pnp4nagios/ 即可看到pnp图
  
  
• 添加pnp4nagios记录模版
  修改/etc/nagios/objects/templates.cfg,添加如下内容
  
  
  
  
  define host {
  name       host-pnp
  action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$'class='tips'rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=_HOST_
  register   0
  process_perf_data       1
  }
  define service {
  name       srv-pnp
  action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$'class='tips'rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=$SERVICEDESC$
  register   0
  process_perf_data       1
  }
  templates.cfg Code
  
• 在host和service定义中使用pnp4nagios模版
  编辑localhost.cfg文件，vi /etc/nagios/objects/localhost.cfg
  将use linux-server 修改为 use linux-server,host-pnp
  将use local-services修改为 use local-services,srv-pnp
  
  
  
  
  define host{   
  use                    linux-server,hosts-pnp   
  host_name              localhost   
  alias                  localhost   
  address                127.0.0.1   
  }   
  define service{   
  use                            local-service,srv-pnp   
  host_name                      localhost   
  service_description            PING   
  check_command                   check_ping!100.0,20%!500.0,60%   
  }  
  pnp services Code
  被监控机需要显示pnp按钮，修改vi /etc/nagios/objects/services.cfg
  将use local-services修改为 use local-services,srv-pnp
  
• 出现的问题
  
  关闭 selinux
  setenforce 0
  sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
  sed -i "s/SELINUXTYPE=targeted/#SELINUXTYPE=targeted/g" /etc/selinux/config
  
• 　　参考文档：
  　　https://www.digitalocean.com/community/tutorials/how-to-install-nagios-on-centos-6
  http://geekpeek.net/pnp4nagios-centos-install/
  http://blog.iyunv.com/tch8502/article/details/22151525
  http://www.huangzhongzhang.cn/nagios-pnp4nagios-an-zhuang-bi-ji.html