How to diagnose flaky nslookup/bind9?

Asked Jan 22 '14 at 20:50

Active Jan 22 '14 at 20:50

Viewed 183 times

BACKGROUND

I have a long running DNS (bind9) server running on Ubuntu that works most of the time (from Ubuntu, Win8 or OSX):

$ nslookup gitserver
Server:         127.0.1.1
Address:        127.0.1.1#53

Name:   gitserver.foobar.com
Address: 172.17.51.3

However, I periodically get a lookup error:

$ nslookup gitserver
Server:         127.0.1.1
Address:        127.0.1.1#53

** server can't find gitserver: NXDOMAIN

Note that I have bind9 configured with an outward facing names and inward facing. fwiw, gitserver is on the inward facing side.

Also, if I try the lookup 3 or 4 times, it usually starts to work again.

QUESTION

What can I do to diagnose the cause of this intermittent problem?

asked Jan 22 '14 at 20:50

kfmfe04

Learn to use dig. – user9517 Jan 22 '14 at 22:27
@Iain I know about dig - will try it the next time I have the issue, but I suspect something is wrong with my DNS configuration (as opposed to nslookup in this case)... – kfmfe04 Jan 23 '14 at 05:42

0 Answers0