Nagios critical error 800 days old

Hello Experts,

I started here in April and I m trying to clean house.

We use Nagios religously.

There are this errors that I want to clean up. This one I am not sure where to begin:

Debian GNU/Linux
Internal DNS
Notifications for this service have been disabled
      CRITICAL       2015-07-31 09:36:41       890d 16h 6m 48s       4/4       DNS CRITICAL - 0.023 seconds response time (No ANSWER SECTION found)

If you could give me an idea where to begin please.

Thank you!
marceloNYCMiddle-Tier AdministratorAsked:
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Dan CraciunIT ConsultantCommented:
Well, almost 3 years ago your DNS server changed, the person in charge of Nagios did not know how to change the check and disabled the notifications so it would not bother him/her.

Check the services inside /etc/nagios3/conf.d/ until you find the culprit.

Seth SimmonsSr. Systems AdministratorCommented:
i would look at the command being used
i'm guessing it is using check_dig
look at the command line; possible it was not setup correctly
marceloNYCMiddle-Tier AdministratorAuthor Commented:
Aha! I found this fellow in services conf file

# check that ssh services are running
define service {
    hostgroup_name           internal-dns-servers
    service_description      Internal DNS
    check_command            check_dig!
    use                      generic-service

define service {
    hostgroup_name           store-internal-dns-servers
    service_description      Internal DNS
    check_command            check_dig!
    normal_check_interval    10
    max_check_attempts       10
    use                      generic-service
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Dan CraciunIT ConsultantCommented:
OK, then look in hostgroups_nagios2.cfg for those 2 groups (internal-dns-servers and  store-internal-dns-servers) and check which host should not be there.

Hint: commsrv1

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marceloNYCMiddle-Tier AdministratorAuthor Commented:
Digging... need a few
Seth SimmonsSr. Systems AdministratorCommented:
look at the command using check_dig and see what parameters are being used
marceloNYCMiddle-Tier AdministratorAuthor Commented:

For sure the solution is in the two config files .

My problem now is finding out what server should go where.

There 3 to choose from.

The one that is in the command check_dig! does seem to be doing anything now yet it does respond to a ping.

Asking around to get the right idea.
Seth SimmonsSr. Systems AdministratorCommented:
what is the command line for check_dig?
marceloNYCMiddle-Tier AdministratorAuthor Commented:
I am stuck figuring out what name DNS server to put there ( I found 4). That is a beside the issue that you helped me with

Thank you!
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