Flush cache only for one domain

[ram]

I sometimes have issues where some domains remain unresolvable ( their
NS is down ) for sometime and then my caching bind server just caches
the result even after the problem is solved

Until I restart named, bind gives no DNS records. ( or until cache
times out )

Is there a way I tell bind named for just 1 domain requery the DNS
records and dont resolve from cache

Thanks
Ram

[Ben Croswell]

If you have 9.3 or greater you can use rndc to flush the cache for a single
domain.
From DNS and Bind:

BIND 9.3.0 will support flushing all of the records attached to a particular
domain name with rndc flushname. For example:

# rndc flushname cnn.com

--
-Ben Croswell

[Chris Thompson]

On Aug 1 2008, ram wrote:

>I sometimes have issues where some domains remain unresolvable ( their
>NS is down ) for sometime and then my caching bind server just caches
>the result even after the problem is solved
>
>Until I restart named, bind gives no DNS records. ( or until cache
>times out )
>
>Is there a way I tell bind named for just 1 domain requery the DNS
>records and dont resolve from cache

Use "rndc flushname [name]", available from BIND 9.3 onwards.

--
Chris Thompson
Email: ce...@cam.ac.uk