Nagios Notifications Not being Sent Out


#1

Hello all,

First off, I really appreciate any feedback you can provide. I’ve just recently started working with Nagios and everything is working great, except for notifications being sent out. I’ve been searching all over the net, comparing my configurations with others to see if there was anything noticeable I was missing, but I can’t seem to find anything. I’ve included my configuration files below for you to look at.

I have been able to send a mail from the server (CentOS 5.3) using sendmail. I can also successfully send Email using the E-mail commands in the commands.cfg file.

Everything is being monitored correctly, just for some reason the E-mails are not being sent out. I should also note that if I do a “Send custom host notification” in nagios on a host that has a critical warning, I DO get an E-mail successfully. It’s just not automatically sending them out.

UPDATE: I do have some good news. I did receive a notification last night for a flapping alert. However, it still is not sending out alerts from being down, returning to up state, etc…

[quote]
[1255678430] SERVICE FLAPPING ALERT: AUSTIN-LAPTOP;CPU Load;STOPPED; Service appears to have stopped flapping (4.0% change < 5.0% threshold)
[1255678430] SERVICE NOTIFICATION: libertyadmins;AUSTIN-LAPTOP;CPU Load;FLAPPINGSTOP (CRITICAL);notify-service-by-email;No route to host[/quote]

So it appears I’m receiving flapping alerts, but nothing else. In the Nagios web interface, if I go to Configuration --> Contacts…I can see that under Service Notification Options and Host Configuration Options I only see “Flapping, Downtime” enabled. I’m not getting downtime alerts, but shouldn’t there be more options there? Uptime…etc.

Is there something obvious I am missing in the config files? I really appreciate the help, please let me know what you think.

[size=150]Templates.cfg[/size]

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

define contact{
       name                            generic-contact         ; The name of this contact template
       host_notifications_enabled      1
       service_notifications_enabled   1
       host_notification_commands      notify-host-by-email
       service_notification_commands   notify-service-by-email
       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       w,u,c,r,f,s             ; send notifications for all host states, flapping events, and scheduled downtime events
       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
       failure_prediction_enabled         1                    ; Failure prediction 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
       check_period                       24x7                 ; By default, Linux hosts are checked round the clock
       check_interval                     1                    ; Actively check the host every 1 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
       notification_interval              120                  ; Resend notifications every 2 hours
       notification_options               w,u,c,r,f,s          ; Only send notifications for specific host states
       contact_groups                     libertyadminsgroup   ; 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              1                    ; Actively check the server every 1 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       60                   ; Resend notifications every 30 minutes
       notification_options        w,u,c,r,f,s          ; Only send notifications for specific host states
       contact_groups              libertyadminsgroup   ; 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 a template for switches that we can reuse
define host{
       name                        switches                    ; 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        w,u,c,r,f,s                 ; Only send notifications for specific host states
       contact_groups              libertyadminsgroup          ; Notifications get sent to the admins by default
       hostgroups                  switches
       register                    0                           ; DONT REGISTER THIS - ITS JUST A TEMPLATE
       }

define host{
       name                        routers                     ; 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        w,u,c,r,f,s                 ; Only send notifications for specific host states
       contact_groups              libertyadminsgroup          ; Notifications get sent to the admins by default
       hostgroups                  routers
       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
        failure_prediction_enabled      1                      ; Failure prediction 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
        normal_check_interval           3                      ; Check the service every 10 minutes under normal conditions
        retry_check_interval            1                      ; Re-check the service every two minutes until a hard state can be determined
        contact_groups                  libertyadminsgroup     ; Notifications get sent out to everyone in the 'admins' group
        notification_options            w,u,c,r,f,s            ; 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!
        }[/code]


**[size=150]Commands.cfg[/size]**


[code]# 'notify-host-by-email' command definition
define command{
       command_name  notify-host-by-email
       command_line  /usr/bin/mail "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$
       }

# 'notify-service-by-email' command definition
define command{
       command_name  notify-service-by-email
       command_line  /usr/bin/mail "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$" | /bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$
       }[/code]


**
[size=150]Services.cfg[/size]**

[code]define service{
       use                  generic-service
       hostgroup_name       windows-servers
       service_description System Uptime
       check_command        check_nt!UPTIME
       }

define service{
       use                  generic-service
       hostgroup_name       windows-servers
       service_description CPU Load      
       check_command        check_nt!CPULOAD!-l 5,80,90
       }

define service{
       use                  generic-service
       hostgroup_name       windows-servers
       service_description Memory Usage
       check_command        check_nt!MEMUSE!-w 80 -c 90
       }

define service{
       use                  generic-service
       hostgroup_name       windows-servers
       service_description  Used Disk Space      
       check_command        check_nt!USEDDISKSPACE!-l c -w 80 -c 90
       }

define service{
       use                  generic-service
       hostgroup_name       windows-servers
       service_description Ping Test
       check_period                24x7
       max_check_attempts          3
       normal_check_interval       3
       retry_check_interval        1
       contact_groups              libertyadminsgroup
       notification_interval       60
       notification_period         24x7
       notification_options        w,u,c,r
       check_command               check_ping!200.0,20%!600.0,60%     ; The command used to monitor the service
       }

**
[size=150]Hosts.cfg[/size]**

define host{ use windows-server ; Inherit default values from a template host_name NAME ; The name we're giving to this host alias NAME ; A longer name associated with the host address <IP ADDRESS> ; IP address of the host }


#2

Problem has been fixed. The objects.cache file was using my old configurations, so I simply disabled pre-caching in the main nagios.cfg file.