Forum Discussion

omar05_132659's avatar
omar05_132659
Icon for Nimbostratus rankNimbostratus
Jul 31, 2014

GTM 11.5.1 does not respond DNS queries anymore

Hello folks,

 

Yesterday, I upgraded a GTM from 11.2.1 to 11.5.1. It seemed that every configuration object was migrated from the old version to the new one, but the DNS name resolution failed. I have read the release notes of F5 and there is nothing about this kind of issues. The GTM is resolving a delegated subdomain which is located in the ISP provider's DNS. So. do I need to change something in the namedb or in the listener conf?

 

The traffic capture says: query response, server failure.

 

all comments and recommendations will be welcome.

 

Thanks in advance.

 

Omar

 

BIG-IP DNS
management

2 Replies

Sort By
  • Arnaud_Lemaire's avatar
    Arnaud_Lemaire
    Icon for Employee rankEmployee
    Aug 01, 2014

    We add several features from 11.2.1 to 11.5.1 for DNS. first step would be to have a look to your DNS profile added to you VIP and see if options are correct.

     

    check if all your WIP are green in the gui.

     

    try to have look in /var/log/gtm and /var/log/ltm

     

  • omar05_132659's avatar
    omar05_132659
    Icon for Nimbostratus rankNimbostratus
    Aug 01, 2014

    I have reviewed the configuration of the UDP and DNS profiles. Nothing has changed.

     

    There are just log files regarding to UP/DOWN gtm pools.

     

    It is supposed that every upgrade must be smooth. I do not understand.

     

    The WideIPs are in green state.