Does bind read /etc/hosts?

[Lightner, Jeff]

The confusion can come in because some UNIX variants (notably HP-UX) nslookup was modified to honor /etc/nsswitch.conf so it DOES check /etc/hosts if "files" precedes "dns".

However, in most things (e.g. Linux, Solaris) nslookup (and the newer host command) do not look at /etc/hosts regardless of nsswitch.conf setting.



-----Original Message-----
From: bind-users-bounces at lists.isc.org [mailto:bind-users-bounces at lists.isc.org] On Behalf Of Niall O'Reilly
Sent: Tuesday, July 15, 2014 6:57 AM
To: houguanghua
Cc: bind-users at lists.isc.org
Subject: Re: Does bind read /etc/hosts?

At Tue, 15 Jul 2014 10:28:30 +0000,
houguanghua wrote:
>
> Before Bind consults authority NS, does it access /etc/hosts? In my
> testing, it does not even seem to access /etc/hosts.

  That's right.  BIND tools (dig, ...) are DNS tools.
  Local files aren't part of the DNS.

  For more information, please see
http://serverfault.com/questions/498500/why-does-the-host-command-not-resolve-entries-in-etc-hosts

  Best regards,
  Niall O'Reilly
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