BIND 9 with views recursion issues

[Barry Margolin]

In article <ejctr4$27hj$1 at sf1.isc.org>,
 "FredrichManey" <fredrichmaney at gmail.com> wrote:

> More detail......
> 
> When diagnosing the issue I get truly odd and inconsistent results. By
> specifying different options to 'dig' I can sometimes resolve, and
> sometimes not.
> 
> For example, one of the sites that is failing is www.samsclub.com.
> Here's the output from 'dig' with various options:
> 
> root at dns02# dig @10.3.8.101 www.samsclub.com
> ; <<>> DiG 9.3.2 <<>> @10.3.8.101 www.samsclub.com
> ; (1 server found)
> ;; global options:  printcmd
> ;; connection timed out; no servers could be reached
> 
> 
> root at dns02# dig @10.3.8.101 +trace www.samsclub.com
> ; <<>> DiG 9.3.2 <<>> @10.3.8.101 +trace www.samsclub.com
> ; (1 server found)

Using +trace is almost never a good way to test a caching server.  This 
option causes dig to do its own iteration starting from the root 
servers, rather than asking the caching server to recurse.  I think it 
only uses the caching server to resolve the hostnames in NS records, it 
doesn't use it to resolve the name you're actually trying to look up.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
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