Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Is it possible to setup some DNS server where it will default to an IP address if the the host name it tries to resolve fails to resolve? I'm having a problem where a host name is intermittently failing to resolve.

share|improve this question
I'd suggest you're far better off dealing with the existing problem, DNS hacks will cause you a lot of pain down the line. Also, I'm not sure it's possible to set yourself up as authoritative for, but only when's name servers are off line. A temporary workaround could be to add a static entry to client hosts files while the NS is unreliable. – SmallClanger Jan 18 '11 at 17:06
I concur with SmallClanger, you should fix the real problem. Maybe you can port here the problem and maybe we can help fix it. – cwheeler33 Jan 18 '11 at 23:40
I'm using PayPal and am getting intermittent host name resolve failures. I'm not sure if this is isolated to our network or if it's specific to PayPal. A Google search has suggested other shared similar problems, but in the past. We are still experiencing it. – Bradford Jan 19 '11 at 14:45

What is the output of NSlookup? What are you using for a local DNS server? Who do you forward to? Have you cleared your cache (both server side and client side)?

Depending on the error with NSlookup, try specifying a different server - maybe Google's DNS servers an see if there is a difference.

also more details about what you are trying to do when you start having problems would be helpful..

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.