DNS::question name - Modifying a DNS Suffix When Your Windows Client Appends It During Recursive Lookups

Quite some time ago I was asked about a 2-second delay when performing recursive lookups against the BIG-IP. My first thought was that there was an issue with transport. I then decided to deploy it i...
Updated Jun 06, 2023
Version 2.0
application delivery
BIG-IP DNS
iRules
Steve_Lyons's avatar
Ret. Employee
My name is Steve Lyons and I reside in Tampa, FL with my 3 children, wife and Frenchie. We live the typical Florida life of swimming, fishing, boating, and BBQ. I started my F5 journey as a customer in 2009 where I was first introduced to it as a "load balancer." I have since deployed and maintained all modules realizing the BIG-IP is so much more. I joined F5 in 2015 where I have made it a personal mission to educate as many people as I can so they too can take advantage of the tremendous potential of the BIG-IP.
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Steve_Lyons's avatar
Steve_Lyons
Ret. Employee
Jan 04, 2019

Agreed and to be completely transparent, this article was really derived from a customers request that the user experience was not the same when performing manual lookups against the BIG-IP as it was when performing lookups against other name resolution providers. I can't say with 100% certainty though I believe they were only referring to AD which I agreed with them does not require a following . when performing a nslookup. Either way, if a customer feels there is a problem whether there is or isn't they have a solution. The basic iRule also provides some with an example of how to modify DNS queries if a particular suffix is matched. I appreciate the response Stanislas!