From owner-freebsd-questions Thu Jun 6 18:31:48 2002 Delivered-To: freebsd-questions@freebsd.org Received: from infinity.aesredfish.net (ns1.aesredfish.net [65.168.0.12]) by hub.freebsd.org (Postfix) with ESMTP id 4C53037B405 for ; Thu, 6 Jun 2002 18:31:42 -0700 (PDT) Received: from potentialtech.com (mhope-dhcp-65-168-1-181.dashfast.com [65.168.1.181]) by infinity.aesredfish.net (8.11.6/8.11.0) with ESMTP id g571V5U13421; Thu, 6 Jun 2002 21:31:07 -0400 Message-ID: <3D000E3E.4010601@potentialtech.com> Date: Thu, 06 Jun 2002 21:37:02 -0400 From: Bill Moran User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.0rc1) Gecko/20020502 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Robert Cc: FreeBSD Support Subject: Re: OT - Some Name strangeness References: <001c01c20dc1$b19ef8b0$fa6318ac@swegg> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Robert wrote: > I recently (as noted in other post) been involved in a telstra (australia) > bigpond installation. > > the strangness i have seen is in the names fo the pop and smtp server names. > > pop mail comes from pop-mail (No .bigpond.com.) and mail goes to mail-hub > (again, not a FQDN). I didn't think that too strange - the DNS could treat > them as local names, or could be hacked to supply the ip addresses from > these apparently invalid names. > > However, I became competely confused when these names continued to work > after I installed my BSD router and changed to it's DNS server. Also, > nslookup canot resolve these names, no matter where i send the request. > > What is happening? how is this working??? It seems to me that most systems will append their domain name to the host name if it's not fully qualified. i.e.: My hostname is me.domain.com I'm trying to resolve smtp-server and it fails, so I try smtp-server.domain.com. Would that explain what's happening? I believe this is a standard action for any resolver library to take. nslookup won't do it, however. nslookup only attempts to resolve exactly what you tell it to. -- Bill Moran Potential Technology http://www.potentialtech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message