FQDN object not resolved

[BigPalo]

Hi,

We have this fqdn object created: 

2021-01-08 12:26:14.872 +0100 dnscfgmod: Fqdn SIEMENS OWNCLOUD SERVER/cco.siemens.com could not be resolved

If i run a ping from MGMT A interface is resolving:

ping host cco.siemens.com
PING cco.siemens.com (212.231.11.154) 56(84) bytes of data.

The DNS is OK, reachable, and resolving.

If i go to the web and clik solve in the object is also resolving:

But in FQDN list is not resolving so the rule is not applying.

request system fqdn show:

cco.siemens.com (Objectname SIEMENS SERVER):

Not resolved

WHy is happening this? any file to check deep tshooting?

[MP18]

Which PAN OS you are running?

Do you have issue only with this FQDN or other FQDN's also?

For me it is resolving

show dns-proxy fqdn all

FQDN Table : Request time 2021-01-09 20:56:53
--------------------------------------------------------------------------------
IP Address
--------------------------------------------------------------------------------

VSYS : (using mgmt-obj dnsproxy object)
Shared
vsys1

cco.siemens.com
212.231.11.154
:: unknown

Normally this happens if IP in Security Rule does not match the FQDN IP address.

Sometimes  FQDN object  not refreshing properly.

Also Check traffic logs to see which rule it is hitting.

Double check your security policy rule.

Also try this from CLI

request system fqdn refresh

Regards

[BigPalo]

Hi,

The PanOS is old, we will upgrade during this month. Current PanOS is 8.0.x

We dont use dns-proxy. We run command: request system fqdn show 

in order to see the fqdn resolved

[Mustafa83]

I had the same issue; support fixed it by running the below commands, commands only impact management plane but not impacting the actual traffic, we did it during business hours without impact to the users.

> debug software restart process device-server
> debug software restart process management-server

hope this help.

Mustafa

[nikoolayy1]

This seems like a bug that causes crashes or/and memory leaks and till it is fixed maybe you can run a script using tools like Ansible or XSOAR to periodically restart the process or the managment plane:

https://paloaltonetworks.github.io/pan-os-ansible/modules/panos_op_module.html

https://xsoar.pan.dev/docs/reference/integrations/panorama