Why do I got these reverse queries in the log file

[Ralf Hildebrandt]

On Son, Aug 20, 2000 at 03:09:33 -0400, Xindian Long wrote:
> 
> 
> When I use nslookup to do a Type A query, I see lots of inverse query for 
> the IP address  it meets in the resolving procedure, including
> refering (refered name servers) and final results in the process of
> resolving, even when it has just done the inverse query for the same IP
> address and it has not expired yet.  Anyone of any idea whether it is
> normal for BIND to do this. Is there any method to turn this off?

That behaviour is a feature of nslookup. Use dig to prevent that.