# GSLB DNS response when all service IPs are down?

**URL:** <https://community.a10networks.com/t/gslb-dns-response-when-all-service-ips-are-down/59>\
**Category:** ADC - Application Delivery\
**Created:** [September 25, 2011, 11:32pm UTC](https://community.a10networks.com/t/gslb-dns-response-when-all-service-ips-are-down/59 "2011-09-25T23:32:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kirbini](https://avatars.discourse-cdn.com/v4/letter/k/a6a055/32.png) [@kirbini](https://community.a10networks.com/u/kirbini)\
**Post date:** [September 25, 2011, 11:32pm UTC](https://community.a10networks.com/t/gslb-dns-response-when-all-service-ips-are-down/59/1 "2011-09-25T23:32:33Z")

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**Posted by kirbini**

How should the non-proxy DNS respond in a GSLB config when all service IPs fail their heath checks?

I have two service IPs in a GLSB zone config. Both servers show down in the service-ip status page but I still get a valid DNS response containing at least one of the external IPs when I query the load balancer. If only one is down I correctly get the IP of the up device 100% of the time. However if that device drops offline too then I still get a valid DNS response, although it is not always the IP of the server that most recently went down.

In this situation I’d expect a NXDOMAIN type response not a valid IP. Is that how it is supposed to work?

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/a10_community/original/1X/bb9f186d33804d3044a0374e589f49fdf3be1328.png) [@system](https://community.a10networks.com/u/system)\
**Post date:** [September 25, 2011, 11:33pm UTC](https://community.a10networks.com/t/gslb-dns-response-when-all-service-ips-are-down/59/2 "2011-09-25T23:33:45Z")

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**Posted by TODDH**

Do you have Active-Only checked in your policy?

Thanks,

-Todd-

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**Author:** ![kirbini](https://avatars.discourse-cdn.com/v4/letter/k/a6a055/32.png) [@kirbini](https://community.a10networks.com/u/kirbini)\
**Post date:** [September 25, 2011, 11:34pm UTC](https://community.a10networks.com/t/gslb-dns-response-when-all-service-ips-are-down/59/3 "2011-09-25T23:34:16Z")

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**Posted by kirbini**

I do now and it works as expected. Don’t know how I overlooked that one (yes I do, It’s late on a Friday afternoon).

Thanks for pointing it out.