On 2009-05-25 12:51, carlopmart wrote:
I have a problem using named with different CentOS5 servers (2 servers): all they are really slow to resolv any internet address and most of time fails to resolv. This situation differs if I use "forwarders" servers like opendns: resolving names it is really really quickly. And I don't understand why.
On the other hand I have tested three DNS servers using Windows 2003, Windows 2008 and Ubuntu hardy and these problems doesn't occurs (I don't need to configure forwarders on any of them): all resolves any name and really fast.
IPv6 is disabled on both CentOS servers. Somebody knows why these dns servers are slow??
My crystal ball is in repair. Could you in the meantime add some more hints, e.g. your config files, and how you diagnosed the slowness.
My CentOS5 DNS-servers do resolve really quickly, with or without forwarders.