check_apt returning NRPE: Command 'check_yum' not defined

[scottwilkerson]

This has not been resolved as there is obviously a bug/flaw where it ignores the host_name field in the .cfg files.

The only 'fix' that I can get to work is by removing .host.name from the host_name field. I should be able to use the full name of 'web-backups.host.name' and 'monitor.host.name' without the 2 configuration files clashing and giving me false reading and/or errors.

Can you show the linux-server template?

[pelicanmedia]

Code: Select all

# Linux host definition template - This is NOT a real host, just a template!

define host{
        name                                               linux-server             ; The name of this host template
        use                                                  generic-host                   ; This template inherits other values from the generic-host template
        check_period                                 24x7                                 ; By default, Linux hosts are checked round the clock
        check_interval                             5                                ; Actively check the host every 5 minutes
        retry_interval                             1                                ; Schedule host check retries at 1 minute intervals
        max_check_attempts                       10                                 ; Check each Linux host 10 times (max)
  check_command                      check-host-alive   ; Default command to check Linux hosts
        notification_period                      workhours                    ; 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_interval                  120                                ; Resend notifications every 2 hours
        notification_options                   d,u,r                            ; Only send notifications for specific host states
        contact_groups                             admins                               ; Notifications get sent to the admins by default
        register                                         0                                  ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
}

[scottwilkerson]

this includes the generic-host template, can you show that, and any it contains?

[pelicanmedia]

The only other reference for generic-host I can find is in
/usr/local/nagios/etc/objects/templates.cfg and /usr/local/nagios/etc/config/templates.cfg

[scottwilkerson]

The only other reference for generic-host I can find is in
/usr/local/nagios/etc/objects/templates.cfg and /usr/local/nagios/etc/config/templates.cfg

I'd like to see both of those definitions

[pelicanmedia]

/usr/local/nagios/etc/config/templates.cfg

Code: Select all

###############################################################################
# TEMPLATES.CFG - SAMPLE OBJECT TEMPLATES
#
#
# NOTES: This config file provides you with some example object definition
#        templates that are refered by other host, service, contact, etc.
#        definitions in other config files.
#       
#        You don't need to keep these definitions in a separate file from your
#        other object definitions.  This has been done just to make things
#        easier to understand.
#
###############################################################################

###############################################################################
###############################################################################
#
# CONTACT TEMPLATES
#
###############################################################################
###############################################################################

# Generic contact definition template - This is NOT a real contact, just a template!

define contact{
  name                            generic-contact    	      ; The name of this contact template
  service_notification_period     24x7			                ; service notifications can be sent anytime
  host_notification_period        24x7			                ; host notifications can be sent anytime
  service_notification_options    w,u,c,r,f,s		            ; send notifications for all service states, flapping events, and scheduled downtime events
  host_notification_options       d,u,r,f,s		              ; send notifications for all host states, flapping events, and scheduled downtime events
  service_notification_commands   notify-service-by-email	  ; send service notifications via email
  host_notification_commands      notify-host-by-email	    ; send host notifications via email
  register                        0       		              ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A TEMPLATE!
}

###############################################################################
###############################################################################
#
# HOST TEMPLATES
#
###############################################################################
###############################################################################

# Generic host definition template - This is NOT a real host, just a template!

define host{
  name                            generic-host    	; The name of this host template
  notifications_enabled           1       	       	; Host notifications are enabled
  event_handler_enabled           1       	       	; Host event handler is enabled
  flap_detection_enabled          1       	       	; Flap detection is enabled
  process_perf_data               1       	       	; Process performance data
  retain_status_information       1       	       	; Retain status information across program restarts
  retain_nonstatus_information    1       	       	; Retain non-status information across program restarts
  notification_period		          24x7		         	; Send host notifications at any time
  register                        0       		      ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
}

# Linux host definition template - This is NOT a real host, just a template!

define host{
	name				                   linux-server		    ; The name of this host template
	use				                     generic-host		    ; This template inherits other values from the generic-host template
	check_period			             24x7			          ; By default, Linux hosts are checked round the clock
	check_interval			           5			            ; Actively check the host every 5 minutes
	retry_interval			           1			            ; Schedule host check retries at 1 minute intervals
	max_check_attempts		         10			            ; Check each Linux host 10 times (max)
  check_command           	     check-host-alive 	; Default command to check Linux hosts
	notification_period		         workhours		      ; 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_interval		       120			          ; Resend notifications every 2 hours
	notification_options		       d,u,r			        ; Only send notifications for specific host states
	contact_groups			           admins			        ; Notifications get sent to the admins by default
	register			                 0			            ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
}

# Windows host definition template - This is NOT a real host, just a template!

define host{
	name				                   windows-server		   ; The name of this host template
	use				                     generic-host		     ; Inherit default values from the generic-host template
	check_period			             24x7			           ; By default, Windows servers are monitored round the clock
	check_interval			           5			             ; Actively check the server every 5 minutes
	retry_interval			           1			             ; Schedule host check retries at 1 minute intervals
	max_check_attempts		         10			             ; Check each server 10 times (max)
	check_command			             check-host-alive	   ; Default command to check if servers are "alive"
	notification_period		         24x7			           ; Send notification out at any time - day or night
	notification_interval		       30			             ; Resend notifications every 30 minutes
	notification_options		       d,r			           ; Only send notifications for specific host states
	contact_groups			           admins			         ; Notifications get sent to the admins by default
	hostgroups			               windows-servers 	   ; Host groups that Windows servers should be a member of
	register			                 0			             ; DONT REGISTER THIS - ITS JUST A TEMPLATE
}

define host{
  name                    	     windows-workstation 	   ; The name of this host template
  use                    		     generic-host    	       ; Inherit default values from the generic-host template
  check_period        		       24x7            	       ; By default, Windows servers are monitored round the clock
  check_interval      		       5               	       ; Actively check the server every 5 minutes
  retry_interval          	     1               	       ; Schedule host check retries at 1 minute intervals
  max_check_attempts      	     10              	       ; Check each server 10 times (max)
  check_command           	     check-host-alive        ; Default command to check if servers are "alive"
  notification_period     	     24x7            	       ; Send notification out at any time - day or night
  notification_interval   	     30              	       ; Resend notifications every 30 minutes
  notification_options    	     d,r             	       ; Only send notifications for specific host states
  contact_groups          	     admins          	       ; Notifications get sent to the admins by default
  hostgroups              	     windows-workstations 	 ; Host groups that Windows servers should be a member of
  register                	     0               	       ; DONT REGISTER THIS - ITS JUST A TEMPLATE
}

# We define a generic printer template that can be used for most printers we monitor

define host{
	name				                   generic-printer		; The name of this host template
	use				                     generic-host		    ; Inherit default values from the generic-host template
	check_period			             24x7			          ; By default, printers are monitored round the clock
	check_interval			           5			            ; Actively check the printer every 5 minutes
	retry_interval			           1			            ; Schedule host check retries at 1 minute intervals
	max_check_attempts		         10			            ; Check each printer 10 times (max)
	check_command			             check-host-alive	  ; Default command to check if printers are "alive"
	notification_period		         workhours		      ; Printers are only used during the workday
	notification_interval		       30			            ; Resend notifications every 30 minutes
	notification_options		       d,r			          ; Only send notifications for specific host states
	contact_groups			           admins			        ; Notifications get sent to the admins by default
	register			                 0			            ; DONT REGISTER THIS - ITS JUST A TEMPLATE
}

# Define a template for switches that we can reuse
define host{
	name				                   generic-switch   ; The name of this host template
	use				                     generic-host		  ; Inherit default values from the generic-host template
	check_period			             24x7			        ; By default, switches are monitored round the clock
	check_interval			           5		            ; Switches are checked every 5 minutes
	retry_interval			           1			          ; Schedule host check retries at 1 minute intervals
	max_check_attempts		         10			          ; Check each switch 10 times (max)
	check_command			             check-host-alive	; Default command to check if routers are "alive"
	notification_period            24x7			        ; Send notifications at any time
	notification_interval		       30			          ; Resend notifications every 30 minutes
	notification_options	         d,r			        ; Only send notifications for specific host states
	contact_groups			           admins			      ; Notifications get sent to the admins by default
	register			                 0			          ; DONT REGISTER THIS - ITS JUST A TEMPLATE
}

###############################################################################
###############################################################################
#
# SERVICE TEMPLATES
#
###############################################################################
###############################################################################

# Generic service definition template - This is NOT a real service, just a template!

define service{
  name                            generic-service 	; The 'name' of this service template
  active_checks_enabled           1       		      ; Active service checks are enabled
  passive_checks_enabled          1    		        	; Passive service checks are enabled/accepted
  parallelize_check               1             		; Active service checks should be parallelized (disabling this can lead to major performance problems)
  obsess_over_service             1             		; We should obsess over this service (if necessary)
  check_freshness                 0             		; Default is to NOT check service 'freshness'
  notifications_enabled           1             		; Service notifications are enabled
  event_handler_enabled           1             		; Service event handler is enabled
  flap_detection_enabled          1             		; Flap detection is enabled
  process_perf_data               1             		; Process performance data
  retain_status_information       1             		; Retain status information across program restarts
  retain_nonstatus_information    1             		; Retain non-status information across program restarts
  is_volatile                     0             		; The service is not volatile
  check_period                    24x7	         		; The service can be checked at any time of the day
  max_check_attempts              3		             	; Re-check the service up to 3 times in order to determine its final (hard) state
  check_interval   	              10	          		; Check the service every 10 minutes under normal conditions
  check_interval                	2		            	; Re-check the service every two minutes until a hard state can be determined
  contact_groups                  admins	      		; Notifications get sent out to everyone in the 'admins' group
  notification_options	        	w,u,c,r		      	; Send notifications about warning, unknown, critical, and recovery events
  notification_interval           60		          	; Re-notify about service problems every hour
  notification_period             24x7	   	       	; Notifications can be sent out at any time
  register                        0       	       	; DONT REGISTER THIS DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
}

# Local service definition template - This is NOT a real service, just a template!

define service{
  name				                    local-service 		; The name of this service template
  use				                      generic-service		; Inherit default values from the generic-service definition
  max_check_attempts              4		             	; Re-check the service up to 4 times in order to determine its final (hard) state
  check_interval 		              5			            ; Check the service every 5 minutes under normal conditions
  check_interval                	1			            ; Re-check the service every minute until a hard state can be determined
  register                        0       		      ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
}

/usr/local/nagios/etc/objects/templates.cfg

Code: Select all

###############################################################################
# TEMPLATES.CFG - SAMPLE OBJECT TEMPLATES
#
#
# NOTES: This config file provides you with some example object definition
#        templates that are referred by other host, service, contact, etc.
#        definitions in other config files.
#
#        You don't need to keep these definitions in a separate file from your
#        other object definitions.  This has been done just to make things
#        easier to understand.
#
###############################################################################



###############################################################################
#
# CONTACT TEMPLATES
#
###############################################################################

# Generic contact definition template
# This is NOT a real contact, just a template!

define contact {

    name                            generic-contact         ; The name of this contact template
    service_notification_period     24x7                    ; service notifications can be sent anytime
    host_notification_period        24x7                    ; host notifications can be sent anytime
    service_notification_options    w,u,c,r,f,s             ; send notifications for all service states, flapping events, and scheduled downtime events
    host_notification_options       d,u,r,f,s               ; send notifications for all host states, flapping events, and scheduled downtime events
    service_notification_commands   notify-service-by-email ; send service notifications via email
    host_notification_commands      notify-host-by-email    ; send host notifications via email
    register                        0                       ; DON'T REGISTER THIS DEFINITION - ITS NOT A REAL CONTACT, JUST A TEMPLATE!
}



###############################################################################
#
# HOST TEMPLATES
#
###############################################################################

# Generic host definition template 
# This is NOT a real host, just a template!

define host {

    name                            generic-host            ; The name of this host template
    notifications_enabled           1                       ; Host notifications are enabled
    event_handler_enabled           1                       ; Host event handler is enabled
    flap_detection_enabled          1                       ; Flap detection is enabled
    process_perf_data               1                       ; Process performance data
    retain_status_information       1                       ; Retain status information across program restarts
    retain_nonstatus_information    1                       ; Retain non-status information across program restarts
    notification_period             24x7                    ; Send host notifications at any time
    register                        0                       ; DON'T REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
}



# Linux host definition template
# This is NOT a real host, just a template!

define host {

    name                            linux-server            ; The name of this host template
    use                             generic-host            ; This template inherits other values from the generic-host template
    check_period                    24x7                    ; By default, Linux hosts are checked round the clock
    check_interval                  5                       ; Actively check the host every 5 minutes
    retry_interval                  1                       ; Schedule host check retries at 1 minute intervals
    max_check_attempts              10                      ; Check each Linux host 10 times (max)
    check_command                   check-host-alive        ; Default command to check Linux hosts
    notification_period             workhours               ; 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_interval           120                     ; Resend notifications every 2 hours
    notification_options            d,u,r                   ; Only send notifications for specific host states
    contact_groups                  admins                  ; Notifications get sent to the admins by default
    register                        0                       ; DON'T REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
}




# Windows host definition template
# This is NOT a real host, just a template!

define host {

    name                            windows-server          ; The name of this host template
    use                             generic-host            ; Inherit default values from the generic-host template
    check_period                    24x7                    ; By default, Windows servers are monitored round the clock
    check_interval                  5                       ; Actively check the server every 5 minutes
    retry_interval                  1                       ; Schedule host check retries at 1 minute intervals
    max_check_attempts              10                      ; Check each server 10 times (max)
    check_command                   check-host-alive        ; Default command to check if servers are "alive"
    notification_period             24x7                    ; Send notification out at any time - day or night
    notification_interval           30                      ; Resend notifications every 30 minutes
    notification_options            d,r                     ; Only send notifications for specific host states
    contact_groups                  admins                  ; Notifications get sent to the admins by default
    hostgroups                      windows-servers         ; Host groups that Windows servers should be a member of
    register                        0                       ; DON'T REGISTER THIS - ITS JUST A TEMPLATE
}



# We define a generic printer template that can
# be used for most printers we monitor

define host {

    name                            generic-printer         ; The name of this host template
    use                             generic-host            ; Inherit default values from the generic-host template
    check_period                    24x7                    ; By default, printers are monitored round the clock
    check_interval                  5                       ; Actively check the printer every 5 minutes
    retry_interval                  1                       ; Schedule host check retries at 1 minute intervals
    max_check_attempts              10                      ; Check each printer 10 times (max)
    check_command                   check-host-alive        ; Default command to check if printers are "alive"
    notification_period             workhours               ; Printers are only used during the workday
    notification_interval           30                      ; Resend notifications every 30 minutes
    notification_options            d,r                     ; Only send notifications for specific host states
    contact_groups                  admins                  ; Notifications get sent to the admins by default
    register                        0                       ; DON'T REGISTER THIS - ITS JUST A TEMPLATE
}



# Define a template for switches that we can reuse
define host {

    name                            generic-switch          ; The name of this host template
    use                             generic-host            ; Inherit default values from the generic-host template
    check_period                    24x7                    ; By default, switches are monitored round the clock
    check_interval                  5                       ; Switches are checked every 5 minutes
    retry_interval                  1                       ; Schedule host check retries at 1 minute intervals
    max_check_attempts              10                      ; Check each switch 10 times (max)
    check_command                   check-host-alive        ; Default command to check if routers are "alive"
    notification_period             24x7                    ; Send notifications at any time
    notification_interval           30                      ; Resend notifications every 30 minutes
    notification_options            d,r                     ; Only send notifications for specific host states
    contact_groups                  admins                  ; Notifications get sent to the admins by default
    register                        0                       ; DON'T REGISTER THIS - ITS JUST A TEMPLATE
}



###############################################################################
#
# SERVICE TEMPLATES
#
###############################################################################

# Generic service definition template
# This is NOT a real service, just a template!

define service {

    name                            generic-service         ; The 'name' of this service template
    active_checks_enabled           1                       ; Active service checks are enabled
    passive_checks_enabled          1                       ; Passive service checks are enabled/accepted
    parallelize_check               1                       ; Active service checks should be parallelized (disabling this can lead to major performance problems)
    obsess_over_service             1                       ; We should obsess over this service (if necessary)
    check_freshness                 0                       ; Default is to NOT check service 'freshness'
    notifications_enabled           1                       ; Service notifications are enabled
    event_handler_enabled           1                       ; Service event handler is enabled
    flap_detection_enabled          1                       ; Flap detection is enabled
    process_perf_data               1                       ; Process performance data
    retain_status_information       1                       ; Retain status information across program restarts
    retain_nonstatus_information    1                       ; Retain non-status information across program restarts
    is_volatile                     0                       ; The service is not volatile
    check_period                    24x7                    ; The service can be checked at any time of the day
    max_check_attempts              3                       ; Re-check the service up to 3 times in order to determine its final (hard) state
    check_interval                  10                      ; Check the service every 10 minutes under normal conditions
    retry_interval                  2                       ; Re-check the service every two minutes until a hard state can be determined
    contact_groups                  admins                  ; Notifications get sent out to everyone in the 'admins' group
    notification_options            w,u,c,r                 ; Send notifications about warning, unknown, critical, and recovery events
    notification_interval           60                      ; Re-notify about service problems every hour
    notification_period             24x7                    ; Notifications can be sent out at any time
    register                        0                       ; DON'T REGISTER THIS DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
}



# Local service definition template
# This is NOT a real service, just a template!

define service {

    name                            local-service           ; The name of this service template
    use                             generic-service         ; Inherit default values from the generic-service definition
    max_check_attempts              4                       ; Re-check the service up to 4 times in order to determine its final (hard) state
    check_interval                  5                       ; Check the service every 5 minutes under normal conditions
    retry_interval                  1                       ; Re-check the service every minute until a hard state can be determined
    register                        0                       ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL SERVICE, JUST A TEMPLATE!
}

[scottwilkerson]

I guess I'm not seeing the connection. Can you zip and PM me all of the configs under /usr/local/nagios/etc and I can test it on my test envoronment.

[pelicanmedia]

For those who read this...

Apparently there is a REGULAR EXPRESSION MATCHING value in nagios.cfg

I have just changed

Code: Select all

use_regexp_matching=1

to

Code: Select all

use_regexp_matching=0

And it now seems to be working.

This is very frustrating when the values host_name values do NOT match, so the matching should not need to be turned off.

[scottwilkerson]

Glad that resolved the issue.

Locking thread