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ASF's avatar
ASF
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Jun 28, 2022

DNS zone SOA Master Server change

Hi, We own an internet exposed domain mycompany.com A reachable subdomain, gtm1.mycompany.com is managed at GTM lager (now BIGIP DNS). Many wideIP hang from that subdomain eg. "app1layer1.gtm1.myc...
  • Dario_Garrido's avatar
    Jun 28, 2022

    Hello ASF.

    Any server that manages a specific zone should have an SOA record.
    The structure of the SOA record is something like this:
    1. Primary master name server for this zone
    2. Email address of the administrator responsible for this zone (replacing the '@' with a '.' character).
    3. Other fields (https://en.wikipedia.org/wiki/SOA_record)
    For example:

    $TTL 10
    mycompany.com.   IN      SOA     ns1.mycompany.com. admin.mycompany.com. (1652365942 7200 1800 604800 300)
    mycompany.com.   IN      NS      ns1.mycompany.com.
    mycompany.com.   IN      NS      ns2.mycompany.com.

    Then, in a standardized format, you should have an NS record associated with the info provided in the SOA record.
    Anyway, the SOA record is only a documentary record and doesn't have any effect on normal communication, which uses an NS query instead.