On Tue, 2013-07-02 at 12:02 -0700, Eduardo Bonsi wrote: > On 7/2/13 9:35 AM, John Horne wrote: > > > > We were alerted to the problem because we got long delays (around 20 > > seconds) when accessing a site doing a reverse lookup. That service > > then, no doubt the same as with SMTP, then proceeded but without the > > reverse lookup answer. > >
> > > I do occasionally have a very short delay between > the main "www.mydomain" and "mydomain" but the same delay never happened > with the other domains/websites I am running under the same ip address. > I guess I could reverse my main domain to my one and only static ip > address and my question would be: - Does that would affect the other > websites I am serving using the same ip address? Thanks everyone for > this wealth discussion! > If you are referring to my comment above about a 20 second delay, then I should point out that the delay was caused because the reverse zone name servers were inaccessible - access to them is blocked by our firewall. So the client name server would try each listed name server and have to wait for a timeout. On average this gave a 20 second delay. It was not caused because there were no reverse zone entries to lookup. John. -- John Horne, Plymouth University, UK Tel: +44 (0)1752 587287 Fax: +44 (0)1752 587001 _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users