Date: Thu, 06 Jun 2002 21:37:02 -0400 From: Bill Moran <wmoran@potentialtech.com> To: Robert <robbak@comnorth.com.au> Cc: FreeBSD Support <freeBSD-questions@freebsd.org> Subject: Re: OT - Some Name strangeness Message-ID: <3D000E3E.4010601@potentialtech.com> References: <001c01c20dc1$b19ef8b0$fa6318ac@swegg>
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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
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