USG FLEX H: Multiple DNS servers for Domain Zone Forwarder

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szn
szn Posts: 21 image  Freshman Member
First Comment Friend Collector First Anniversary
in USG FLEX H Series

Hi,

I have configured Domain Zone Forwarder for internal domain. Is there a way to add more then one DNS server to have redundancy. Is there a syntax to add more then onw server for same forwarded domain?

image.png

Accepted Solution

  • Zyxel_Tina
    Zyxel_Tina Posts: 422 image  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 50 Answers First Comment
    Answer ✓

    Hi @szn,

    Based on the screenshot you provided, it appears the configuration page is from a non-H (ZLD) firewall, not a USG FLEX H series (uOS) device.

    However, we can confirm that both H-series and non-H firewalls support adding multiple entries for the same Domain Zone with different DNS servers.

    You can create multiple Domain Zone Forwarder entries using the same domain name but pointing to different DNS servers. The device will forward queries to the first DNS server listed, and if it is unreachable, it will try the next server in the list, ensuring redundancy.

    image.png

    Zyxel Tina

All Replies

  • Zyxel_Tina
    Zyxel_Tina Posts: 422 image  Zyxel Employee
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 50 Answers First Comment
    Answer ✓

    Hi @szn,

    Based on the screenshot you provided, it appears the configuration page is from a non-H (ZLD) firewall, not a USG FLEX H series (uOS) device.

    However, we can confirm that both H-series and non-H firewalls support adding multiple entries for the same Domain Zone with different DNS servers.

    You can create multiple Domain Zone Forwarder entries using the same domain name but pointing to different DNS servers. The device will forward queries to the first DNS server listed, and if it is unreachable, it will try the next server in the list, ensuring redundancy.

    image.png

    Zyxel Tina

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