DNS underscore zones are not updating

Xitao
Xitao
edited January 27 in DNS, DHCP, IPAM (DDI)

Hey,

Microsoft AD/DNS checks show major tests passed and replication is healthy.

Mix of 2016 → 2025 OS versions.

Customer DNS is pointing to inflow Infoblox, and Windows DNS manager visibility depends on Infoblox synchronization configuration.

Any similar cases ?

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Comments

  • MattR
    MattR Infoblox Technical Expert

    Its probably best to work with Infoblox Support on this issue. Without more details it would be hard to guess. Here are some things to consider.

    • Where are the DNS zones hosted - in Windows or in Infoblox DNS?
    • If Infoblox is it NIOS or UDDI?
    • Review the syslog messages on the zone primary for any clues.
    • Review the configuration and policies applied to the underscore zones to be sure they are consistent with the parent zone
  • Xitao
    Xitao
    edited March 2

    • Infoblox NIOS;
    • Infoblox is the authoritative DNS;
    • No errors in the syslog;
    • Double check in configuration and policies, no errors;
    • Records exist in Infoblox but in DNS (e.g., _msdcs);
  • MattR
    MattR Infoblox Technical Expert

    No errors anywhere? One thing I can think of, is that the clients must be able to resolve the hostname of the zone primary, and they must be able to communicate with the zone primary with UDP/53. Can you check on that? If that doesn't help, more research is needed, and I'd recommend working with Infoblox Support.

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