Log ALL Polls
Posted: Tue Feb 02, 2021 8:06 am
Hello fellow Nagios users/admins,
I am writing this post in the search of guidance in regards to the logging capabilities of Nagios (Core v4.3.4, hosted on RHEL 7.4).
My specific question is relating to a configuration within Nagios itself, as I currently have two monitoring servers:
srv-nag-01
srv-nag-02
Within each Nagios server, I have a plethora of devices which are monitored (switches, firewalls, servers, etc...).
On 'srv-nag-01', I can see in the file '/var/log/nagios/nagios.log' (default log file) that every poll of devices is being written.
On 'srv-nag-02', I can see in the file '/var/log/nagios/nagios.log' that polls of devices are only being written if the status has changed.
Example for 'srv-nag-02':
Status OK -> Status WARNING
Status OK -> Status CRITICAL
Status WARNING -> OK
Status WARNING -> CRITICAL
Status CRITICAL -> OK
Status CRITICAL -> WARNING
If a device has not made a state change like the above example, then it is not written to the log file on 'srv-nag-02'.
My question: Is there a way that this can be configured? If so, where would I look?
I have tried searching for differences in 'nagios.cfg', and the only inconsistency between them is:
On 'srv-nag-01' -> log_initial_states=1
On 'srv-nag-02' -> log_initial_states=0
Aside from the above, there are no config settings which differ between servers.
My question is: Which configuration file, and which parameter should be modified on srv-nag-02 so that the polled data from every poll appears in the log file(s)?
The following configurations are present on both servers:
log_notifications=1
log_service_retries=1
log_host_retries=1
log_event_handlers=1
log_current_states=1
log_external_commands=1
log_passive_checks=1
Any/All advice will be greatly appreciated!
I am writing this post in the search of guidance in regards to the logging capabilities of Nagios (Core v4.3.4, hosted on RHEL 7.4).
My specific question is relating to a configuration within Nagios itself, as I currently have two monitoring servers:
srv-nag-01
srv-nag-02
Within each Nagios server, I have a plethora of devices which are monitored (switches, firewalls, servers, etc...).
On 'srv-nag-01', I can see in the file '/var/log/nagios/nagios.log' (default log file) that every poll of devices is being written.
On 'srv-nag-02', I can see in the file '/var/log/nagios/nagios.log' that polls of devices are only being written if the status has changed.
Example for 'srv-nag-02':
Status OK -> Status WARNING
Status OK -> Status CRITICAL
Status WARNING -> OK
Status WARNING -> CRITICAL
Status CRITICAL -> OK
Status CRITICAL -> WARNING
If a device has not made a state change like the above example, then it is not written to the log file on 'srv-nag-02'.
My question: Is there a way that this can be configured? If so, where would I look?
I have tried searching for differences in 'nagios.cfg', and the only inconsistency between them is:
On 'srv-nag-01' -> log_initial_states=1
On 'srv-nag-02' -> log_initial_states=0
Aside from the above, there are no config settings which differ between servers.
My question is: Which configuration file, and which parameter should be modified on srv-nag-02 so that the polled data from every poll appears in the log file(s)?
The following configurations are present on both servers:
log_notifications=1
log_service_retries=1
log_host_retries=1
log_event_handlers=1
log_current_states=1
log_external_commands=1
log_passive_checks=1
Any/All advice will be greatly appreciated!