devil20 发表于 2015-9-8 08:19:34

Nagios的配置文件 ZT

    cgi.cfg# 控制cgi访问的配置文件
  nagios.cfg   # Nagios主配置文件
  resource.cfg# resource.cfg定义了一些变量,以便被其他文件引用,如$USER1$
  objects   # objects是一个目录,用于定义Nagios对象
  servers# servers是自己创建的一个目录,Nagios可以加载一个目录下面的所有配置文件(需要在nagios.cfg中配置)
./objects:
commands.cfg# 命令定义配置文件,里面定义的命令可以被其他文件引用  contacts.cfg   # 联系人和联系人组配置文件
  localhost.cfg# 监控本地机器的配置文件
  printer.cfg   # 监控打印机的一个事例配置文件(默认未启用)
  switch.cfg   # 监控路由器的一个事例配置文件(默认未启用)
  templates.cfg   # 模板配置文件,在此可以定义模板,在其他文件中引用
  timeperiods.cfg   # 定义监控时间段的配置文件
  windows.cfg # 监控Windows的一个事例配置文件(默认未启用)
  ./servers:
  hostgroup.cfg# 自己创建的主机群组配置文件
  wiki-l-11.cfg# 自己创建的监控远程Linux主机的配置文件
  
  配置文件是怎样引用的?
http://hiphotos.baidu.com/ugo5/pic/item/636c183a0712a8a03b87ce4d.jpg
  用nagios主要是监控一台主机的各种信息,包括本机资源以及对外的服务等等.这些在nagios里面都是被定义为一个个的项目(nagios称之为服务,为了与主机提供的服务相区别,我这里用项目这个词),而实现每个监控项目,则需要通过commands.cfg文件中定义的命令。
  为了不必重复定义一些项目,Nagios引入了一个模板配置文件(templates.cfg),将一些共性的属性定义成模板,以便于多次引用。
  我们现在有一个监控项目是监控一台机器的web服务是否正常, 我们需要哪些元素呢?最重要的有下面三点:首先是监控哪台机器,然后是这个监控要用什么命令实现,最后就是出了问题的时候要通知哪个联系人。
  我们首先应该在commands.cfg中定义监控远程服务和资源的命令,以及如何发送邮件的命令。大部分监控远程服务和资源的命令的命令通过/usr/local/nagios/libexec下的脚本实现,如ping命令为check_ping。
  /usr/local/nagios/libexec下的脚本命令的使用发法可以通过-h参数查看,如:
  —————————————————————————————–
  # /usr/local/nagios/libexec/check_ping -h
  check_ping v1991 (nagios-plugins 1.4.13)
  Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>
  Copyright (c) 2000-2007 Nagios Plugin Development Team
  <nagiosplug-devel@lists.sourceforge.net>
  Use ping to check connection statistics for a remote host.
  Usage:check_ping -H <host_address> -w <wrta>,<wpl>% -c <crta>,<cpl>%
  [-p packets] [-t timeout] [-4|-6]
  Options:
  -h, –help
  Print detailed help screen
  -V, –version
  Print version information
  -4, –use-ipv4
  Use IPv4 connection
  -6, –use-ipv6
  Use IPv6 connection
  -H, –hostname=HOST
  host to ping
  -w, –warning=THRESHOLD
  warning threshold pair
  -c, –critical=THRESHOLD
  critical threshold pair
  -p, –packets=INTEGER
  number of ICMP ECHO packets to send (Default: 5)
  -L, –link
  show HTML in the plugin output (obsoleted by urlize)
  -t, –timeout=INTEGER
  Seconds before connection times out (default: 10)
  —————————————————————————————–
  然后我们在contacts.cfg文件中定义联系人和联系人组,在timeperiods.cfg中定义监控时间段。
  最后我们在服务器监控配置文件中引用前面定义的元素来监控服务器状态。
  =============================================================
  下面引用配置文件中部分配置做说明:
  vi /usr/local/nagios/etc/resource.cfg
  # 定义$USER1$变量,设置插件路径
  $USER1$=/usr/local/nagios/libexec
  vi /usr/local/nagios/etc/objects/commands.cfg
  # 定义check-host-alive命令
  define command{
  command_namecheck-host-alive# 命令名称
  command_line$USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5
  }
  # 上面的$USER1$和$HOSTADDRESS$引用自已定义的配置文件。变量不需现定义才能被引用。
  ########################################################################
  #
  # 2008.11.18 add by Stone
  # NRPE COMMAND
  # 自己定义check_nrpe命令,此命令后接必需接一个参数,用于告诉远程服务器上的NRPE daemon需要监控的内容,如check_swap参数为监控远程机器的交换分区。
  ########################################################################
  # ‘check_nrpe ‘ command definition
  define command{
  command_name check_nrpe
  command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
  }
  vi /usr/local/nagios/etc/objects/contacts.cfg
  # 定义联系人
  define contact{
  contact_namenagiosadmin; Short name of user
  usegeneric-contact; Inherit default values from generic-contact template (defined above)
  aliasNagios Admin; Full name of user
  emailtest@gmaile.com; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
  }
  # 上面的generic-contact在templates.cfg中定义。
  # 定义联系人组
  define contactgroup{
  contactgroup_nameadmins
  aliasNagios Administrators
  membersnagiosadmin#在此可以加入多个联系人,中间用逗号隔开
  }
  
  vi /usr/local/nagios/etc/objects/timeperiods.cfg
  # 定义监控的时间段
  define timeperiod{
  timeperiod_name 24×7#监控所有时间段(7*24小时)
  alias24 Hours A Day, 7 Days A Week
  sunday00:00-24:00
  monday00:00-24:00
  tuesday00:00-24:00
  wednesday00:00-24:00
  thursday00:00-24:00
  friday00:00-24:00
  saturday00:00-24:00
  }
  
  vi /usr/local/nagios/etc/objects/templates.cfg
  # 定义generic-contact联系人模板,并非真正的联系人,真正的联系人在contacts.cfg中定义
  define contact{
  namegeneric-contact; The name of this contact template
  service_notification_period24×7; service notifications can be sent anytime
  host_notification_period24×7 ; host notifications can be sent anytime
  service_notification_optionsw,u,c,r,f,s; send notifications for all service states, flapping events, and scheduled downtime events
  host_notification_optionsd,u,r,f,s ; send notifications for all host states, flapping events, and scheduled downtime events
  service_notification_commandsnotify-service-by-email ; send service notifications via email
  host_notification_commandsnotify-host-by-email; send host notifications via email
  register0; DONT REGISTER THIS DEFINITION – ITS NOT A REAL CONTACT, JUST A TEMPLATE!
  }
  ——————————————————————————————————————
  service_notification_period24×7
  服务出了状况通知的时间段,这个时间段就是上面在timeperiods.cfg中定义的.
  
  host_notification_period24×7
  主机出了状况通知的时间段, 这个时间段就是上面在timeperiods.cfg中定义的
  
  service_notification_optionsw,u,c,r
  当服务出现w—报警(warning),u—未知(unkown),c—严重(critical),或者r—从异常情况恢复正常,在这四种情况下通知联系人.
  
  host_notification_optionsd,u,r
  当主机出现d —当机(down),u—返回不可达(unreachable),r—从异常情况恢复正常,在这3种情况下通知联系人
  
  service_notification_commandsnotify-service-by-email
  服务出问题通知采用的命令notify-service-by-email,这个命令是在commands.cfg中定义的,作用是给联系人发邮件.
  
  host_notification_commandsnotify-host-by-email
  同上,主机出问题时采用的也是发邮件的方式通知联系人
  ——————————————————————————————————————
  # 定义generic-host主机模板
  define host{
  namegeneric-host; The name of this host template
  notifications_enabled1; Host notifications are enabled
  event_handler_enabled1; Host event handler is enabled
  flap_detection_enabled1; Flap detection is enabled
  failure_prediction_enabled1; Failure prediction is enabled
  process_perf_data1; Process performance data
  retain_status_information1; Retain status information across program restarts
  retain_nonstatus_information1; Retain non-status information across program restarts
  notification_period24×7; Send host notifications at any time
  register0; DONT REGISTER THIS DEFINITION – ITS NOT A REAL HOST, JUST A TEMPLATE!
  }
  # 定义Linux主机模板
  define host{
  namelinux-server; The name of this host template
  usegeneric-host; This template inherits other values from the generic-host template
  check_period24×7; By default, Linux hosts are checked round the clock
  check_interval5; Actively check the host every 5 minutes
  retry_interval1; Schedule host check retries at 1 minute intervals
  max_check_attempts10; Check each Linux host 10 times (max)
  check_commandcheck-host-alive ; Default command to check Linux hosts
  notification_periodworkhours; Linux admins hate to be woken up, so we only notify during the day
  ; Note that the notification_period variable is being overridden from
  ; the value that is inherited from the generic-host template!
  notification_interval120; Resend notifications every 2 hours
  notification_optionsd,u,r; Only send notifications for specific host states
  contact_groupsadmins; Notifications get sent to the admins by default
  register0; DONT REGISTER THIS DEFINITION – ITS NOT A REAL HOST, JUST A TEMPLATE!
  }
  # 在nagios.cfg配置文件中开启对/usr/local/nagios/etc/servers/中配置文件的引用。
  cfg_dir=/usr/local/nagios/etc/servers
  # 远程Linux主机监控文件,如果监控多台主机只需简单复制修改即可。
  #我们应该牢记wiki-l-11.cfg用到的命令在commands.cfg中定义,在commands.cfg中定义的命令用到/usr/local/nagios/libexec下的插件(命令)。
  vi /usr/local/nagios/etc/servers/wiki-l-11.cfg
  # 定义主机
  define host{
  uselinux-server; Name of host template to use
  ; This host definition will inherit all variables that are defined
  ; in (or inherited by) the linux-server host template definition.
  host_namewiki
  aliasDocs
  address192.168.0.11
  }
  # 定义Ping远程Linux主机
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionPING
  check_commandcheck_ping!100.0,20%!500.0,60%;check_ping命令在commands.cfg中定义,后跟两个参数,命令及参数间用!分割。
  }
  #检查远程Linux主机根分区使用情况,check_nrpe命令必须在/usr/local/nagios/etc/objects/commands.cfg中定义(默认未定义)
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionRoot Partition
  check_commandcheck_nrpe!check_disk_root
  }
  # 检查远程Linux主机的登录人数
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionCurrent Users
  check_commandcheck_nrpe!check_users
  }
  # 检查远程Linux的主机的负载
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionCurrent Load
  check_commandcheck_nrpe!check_load
  }
  # 检查远程Linux主机swap分区使用情况
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionSwap Usage
  check_commandcheck_nrpe!check_swap
  }
  # 检查远程Linux主机的SSH服务
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionSSH
  check_commandcheck_ssh
  notifications_enabled0
  }
  # 检查远程Linux主机的HTTP服务
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionHTTP
  check_commandcheck_http
  notifications_enabled0
  }
  vi /usr/local/nagios/etc/servers/hostgroup.cfg
  # 定义主机组(localhost.cfg中有类似的主机组设置,我已将其注释掉,否则可能会有冲突)
  define hostgroup{
  hostgroup_namelinux-servers ; The name of the hostgroup
  aliasLinux Servers ; Long name of the group
  memberslocalhost,wiki; Comma separated list of hosts that belong to this group
  }
  #define hostgroup{
  #hostgroup_namewindows-servers ; The name of the hostgroup
  #aliasWindows Servers ; Long name of the group
  #membersprint; Comma separated list of hosts that belong to this group
  #}
  =============================================================
  # 完成监控主机配置文件的配置后使用下面命令检查配置文件的正确性:
  /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
  # 确定无误后重启Nagios:
  service nagios restart
  =============================================================
  ●check_load的用法及意义
这个插件是用来检测系统当前的cpu负载,使用的方法为
check_load [-r] -w WLOAD1,WLOAD5,WLOAD15 -c CLOAD1,CLOAD5,CLOAD15
在unix里面负载的均值通常表示是1分钟,5分钟,15分钟内平均有多少进程处于等待状态.
例如:check_load -w 15,10,5 -c 30,25,20 这个命令的意义如下
当1分钟多于15个进程等待,5分钟多于10个,15分钟多于5个则为warning状态
当1分钟多于30个进程等待,5分钟多于25个,15分钟多于20个则为critical状态

  
  cgi.cfg# 控制cgi访问的配置文件
  nagios.cfg   # Nagios主配置文件
  resource.cfg# resource.cfg定义了一些变量,以便被其他文件引用,如$USER1$
  objects   # objects是一个目录,用于定义Nagios对象
  servers# servers是自己创建的一个目录,Nagios可以加载一个目录下面的所有配置文件(需要在nagios.cfg中配置)
./objects:
commands.cfg# 命令定义配置文件,里面定义的命令可以被其他文件引用  contacts.cfg   # 联系人和联系人组配置文件
  localhost.cfg# 监控本地机器的配置文件
  printer.cfg   # 监控打印机的一个事例配置文件(默认未启用)
  switch.cfg   # 监控路由器的一个事例配置文件(默认未启用)
  templates.cfg   # 模板配置文件,在此可以定义模板,在其他文件中引用
  timeperiods.cfg   # 定义监控时间段的配置文件
  windows.cfg # 监控Windows的一个事例配置文件(默认未启用)
  ./servers:
  hostgroup.cfg# 自己创建的主机群组配置文件
  wiki-l-11.cfg# 自己创建的监控远程Linux主机的配置文件
  
  配置文件是怎样引用的?
http://hiphotos.baidu.com/ugo5/pic/item/636c183a0712a8a03b87ce4d.jpg
  用nagios主要是监控一台主机的各种信息,包括本机资源以及对外的服务等等.这些在nagios里面都是被定义为一个个的项目(nagios称之为服务,为了与主机提供的服务相区别,我这里用项目这个词),而实现每个监控项目,则需要通过commands.cfg文件中定义的命令。
  为了不必重复定义一些项目,Nagios引入了一个模板配置文件(templates.cfg),将一些共性的属性定义成模板,以便于多次引用。
  我们现在有一个监控项目是监控一台机器的web服务是否正常, 我们需要哪些元素呢?最重要的有下面三点:首先是监控哪台机器,然后是这个监控要用什么命令实现,最后就是出了问题的时候要通知哪个联系人。
  我们首先应该在commands.cfg中定义监控远程服务和资源的命令,以及如何发送邮件的命令。大部分监控远程服务和资源的命令的命令通过/usr/local/nagios/libexec下的脚本实现,如ping命令为check_ping。
  /usr/local/nagios/libexec下的脚本命令的使用发法可以通过-h参数查看,如:
  —————————————————————————————–
  # /usr/local/nagios/libexec/check_ping -h
  check_ping v1991 (nagios-plugins 1.4.13)
  Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>
  Copyright (c) 2000-2007 Nagios Plugin Development Team
  <nagiosplug-devel@lists.sourceforge.net>
  Use ping to check connection statistics for a remote host.
  Usage:check_ping -H <host_address> -w <wrta>,<wpl>% -c <crta>,<cpl>%
  [-p packets] [-t timeout] [-4|-6]
  Options:
  -h, –help
  Print detailed help screen
  -V, –version
  Print version information
  -4, –use-ipv4
  Use IPv4 connection
  -6, –use-ipv6
  Use IPv6 connection
  -H, –hostname=HOST
  host to ping
  -w, –warning=THRESHOLD
  warning threshold pair
  -c, –critical=THRESHOLD
  critical threshold pair
  -p, –packets=INTEGER
  number of ICMP ECHO packets to send (Default: 5)
  -L, –link
  show HTML in the plugin output (obsoleted by urlize)
  -t, –timeout=INTEGER
  Seconds before connection times out (default: 10)
  —————————————————————————————–
  然后我们在contacts.cfg文件中定义联系人和联系人组,在timeperiods.cfg中定义监控时间段。
  最后我们在服务器监控配置文件中引用前面定义的元素来监控服务器状态。
  =============================================================
  下面引用配置文件中部分配置做说明:
  vi /usr/local/nagios/etc/resource.cfg
  # 定义$USER1$变量,设置插件路径
  $USER1$=/usr/local/nagios/libexec
  vi /usr/local/nagios/etc/objects/commands.cfg
  # 定义check-host-alive命令
  define command{
  command_namecheck-host-alive# 命令名称
  command_line$USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5
  }
  # 上面的$USER1$和$HOSTADDRESS$引用自已定义的配置文件。变量不需现定义才能被引用。
  ########################################################################
  #
  # 2008.11.18 add by Stone
  # NRPE COMMAND
  # 自己定义check_nrpe命令,此命令后接必需接一个参数,用于告诉远程服务器上的NRPE daemon需要监控的内容,如check_swap参数为监控远程机器的交换分区。
  ########################################################################
  # ‘check_nrpe ‘ command definition
  define command{
  command_name check_nrpe
  command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
  }
  vi /usr/local/nagios/etc/objects/contacts.cfg
  # 定义联系人
  define contact{
  contact_namenagiosadmin; Short name of user
  usegeneric-contact; Inherit default values from generic-contact template (defined above)
  aliasNagios Admin; Full name of user
  emailtest@gmaile.com; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
  }
  # 上面的generic-contact在templates.cfg中定义。
  # 定义联系人组
  define contactgroup{
  contactgroup_nameadmins
  aliasNagios Administrators
  membersnagiosadmin#在此可以加入多个联系人,中间用逗号隔开
  }
  
  vi /usr/local/nagios/etc/objects/timeperiods.cfg
  # 定义监控的时间段
  define timeperiod{
  timeperiod_name 24×7#监控所有时间段(7*24小时)
  alias24 Hours A Day, 7 Days A Week
  sunday00:00-24:00
  monday00:00-24:00
  tuesday00:00-24:00
  wednesday00:00-24:00
  thursday00:00-24:00
  friday00:00-24:00
  saturday00:00-24:00
  }
  
  vi /usr/local/nagios/etc/objects/templates.cfg
  # 定义generic-contact联系人模板,并非真正的联系人,真正的联系人在contacts.cfg中定义
  define contact{
  namegeneric-contact; The name of this contact template
  service_notification_period24×7; service notifications can be sent anytime
  host_notification_period24×7 ; host notifications can be sent anytime
  service_notification_optionsw,u,c,r,f,s; send notifications for all service states, flapping events, and scheduled downtime events
  host_notification_optionsd,u,r,f,s ; send notifications for all host states, flapping events, and scheduled downtime events
  service_notification_commandsnotify-service-by-email ; send service notifications via email
  host_notification_commandsnotify-host-by-email; send host notifications via email
  register0; DONT REGISTER THIS DEFINITION – ITS NOT A REAL CONTACT, JUST A TEMPLATE!
  }
  ——————————————————————————————————————
  service_notification_period24×7
  服务出了状况通知的时间段,这个时间段就是上面在timeperiods.cfg中定义的.
  
  host_notification_period24×7
  主机出了状况通知的时间段, 这个时间段就是上面在timeperiods.cfg中定义的
  
  service_notification_optionsw,u,c,r
  当服务出现w—报警(warning),u—未知(unkown),c—严重(critical),或者r—从异常情况恢复正常,在这四种情况下通知联系人.
  
  host_notification_optionsd,u,r
  当主机出现d —当机(down),u—返回不可达(unreachable),r—从异常情况恢复正常,在这3种情况下通知联系人
  
  service_notification_commandsnotify-service-by-email
  服务出问题通知采用的命令notify-service-by-email,这个命令是在commands.cfg中定义的,作用是给联系人发邮件.
  
  host_notification_commandsnotify-host-by-email
  同上,主机出问题时采用的也是发邮件的方式通知联系人
  ——————————————————————————————————————
  # 定义generic-host主机模板
  define host{
  namegeneric-host; The name of this host template
  notifications_enabled1; Host notifications are enabled
  event_handler_enabled1; Host event handler is enabled
  flap_detection_enabled1; Flap detection is enabled
  failure_prediction_enabled1; Failure prediction is enabled
  process_perf_data1; Process performance data
  retain_status_information1; Retain status information across program restarts
  retain_nonstatus_information1; Retain non-status information across program restarts
  notification_period24×7; Send host notifications at any time
  register0; DONT REGISTER THIS DEFINITION – ITS NOT A REAL HOST, JUST A TEMPLATE!
  }
  # 定义Linux主机模板
  define host{
  namelinux-server; The name of this host template
  usegeneric-host; This template inherits other values from the generic-host template
  check_period24×7; By default, Linux hosts are checked round the clock
  check_interval5; Actively check the host every 5 minutes
  retry_interval1; Schedule host check retries at 1 minute intervals
  max_check_attempts10; Check each Linux host 10 times (max)
  check_commandcheck-host-alive ; Default command to check Linux hosts
  notification_periodworkhours; Linux admins hate to be woken up, so we only notify during the day
  ; Note that the notification_period variable is being overridden from
  ; the value that is inherited from the generic-host template!
  notification_interval120; Resend notifications every 2 hours
  notification_optionsd,u,r; Only send notifications for specific host states
  contact_groupsadmins; Notifications get sent to the admins by default
  register0; DONT REGISTER THIS DEFINITION – ITS NOT A REAL HOST, JUST A TEMPLATE!
  }
  # 在nagios.cfg配置文件中开启对/usr/local/nagios/etc/servers/中配置文件的引用。
  cfg_dir=/usr/local/nagios/etc/servers
  # 远程Linux主机监控文件,如果监控多台主机只需简单复制修改即可。
  #我们应该牢记wiki-l-11.cfg用到的命令在commands.cfg中定义,在commands.cfg中定义的命令用到/usr/local/nagios/libexec下的插件(命令)。
  vi /usr/local/nagios/etc/servers/wiki-l-11.cfg
  # 定义主机
  define host{
  uselinux-server; Name of host template to use
  ; This host definition will inherit all variables that are defined
  ; in (or inherited by) the linux-server host template definition.
  host_namewiki
  aliasDocs
  address192.168.0.11
  }
  # 定义Ping远程Linux主机
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionPING
  check_commandcheck_ping!100.0,20%!500.0,60%;check_ping命令在commands.cfg中定义,后跟两个参数,命令及参数间用!分割。
  }
  #检查远程Linux主机根分区使用情况,check_nrpe命令必须在/usr/local/nagios/etc/objects/commands.cfg中定义(默认未定义)
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionRoot Partition
  check_commandcheck_nrpe!check_disk_root
  }
  # 检查远程Linux主机的登录人数
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionCurrent Users
  check_commandcheck_nrpe!check_users
  }
  # 检查远程Linux的主机的负载
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionCurrent Load
  check_commandcheck_nrpe!check_load
  }
  # 检查远程Linux主机swap分区使用情况
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionSwap Usage
  check_commandcheck_nrpe!check_swap
  }
  # 检查远程Linux主机的SSH服务
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionSSH
  check_commandcheck_ssh
  notifications_enabled0
  }
  # 检查远程Linux主机的HTTP服务
  define service{
  usegeneric-service; Name of service template to use
  host_namewiki
  service_descriptionHTTP
  check_commandcheck_http
  notifications_enabled0
  }
  vi /usr/local/nagios/etc/servers/hostgroup.cfg
  # 定义主机组(localhost.cfg中有类似的主机组设置,我已将其注释掉,否则可能会有冲突)
  define hostgroup{
  hostgroup_namelinux-servers ; The name of the hostgroup
  aliasLinux Servers ; Long name of the group
  memberslocalhost,wiki; Comma separated list of hosts that belong to this group
  }
  #define hostgroup{
  #hostgroup_namewindows-servers ; The name of the hostgroup
  #aliasWindows Servers ; Long name of the group
  #membersprint; Comma separated list of hosts that belong to this group
  #}
  =============================================================
  # 完成监控主机配置文件的配置后使用下面命令检查配置文件的正确性:
  /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
  # 确定无误后重启Nagios:
  service nagios restart
  =============================================================
  ●check_load的用法及意义
这个插件是用来检测系统当前的cpu负载,使用的方法为
check_load [-r] -w WLOAD1,WLOAD5,WLOAD15 -c CLOAD1,CLOAD5,CLOAD15
在unix里面负载的均值通常表示是1分钟,5分钟,15分钟内平均有多少进程处于等待状态.
例如:check_load -w 15,10,5 -c 30,25,20 这个命令的意义如下
当1分钟多于15个进程等待,5分钟多于10个,15分钟多于5个则为warning状态
当1分钟多于30个进程等待,5分钟多于25个,15分钟多于20个则为critical状态
  
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查看完整版本: Nagios的配置文件 ZT