Primary DNS Query Response is very slow

[Mark Andrews]

> Dear All,
>      I have Primary DNS which has BIND 9 gives speed issue with resolving
> domains -  Total query time > 4000 ms where as my Sec DNS is cool-Total
> query time < 200 ms with same BIND 9.

	The primary is IPv6 capable and the secondary isn't or
	the secondary has IPv6 connectivity to the rest of the world
	and the primary doesn't or the primary has a OS which does not
	report network unreachable when there is no route and the
	secondaries OS does.

	You can run with "named -4" (requires 9.3.x) or get IPv6
	connectivity.  The later is a better long term plan.

	Mark

	P.S.  There have been 16 BIND 9 releases (if I have counted them
	correctly).  Please specify which release in future.

>       I have check my named.conf, log file but shows no error except some
> IP's tried Dynamic Update which is blocked by default.
> 
> Can anyone help me to resolve?
> 
> Best Regards
> 
> Ganesh BORHADE  (vMoksha)
> Phone:    +91-80-4152-8439
> ----------------------------------------------------------------------------
> ------
> Unix Team,   UCB Network Operations Center (24x7)
> NOC Email  :  NOC.OM at UCB-Group.com
> NOC Phone : +32-2-386-6811, +91-80-41528420/1/2/7

--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org