From owner-freebsd-hackers Fri Aug 13 11:49:33 1999 Delivered-To: freebsd-hackers@freebsd.org Received: from dead-end.net (dead-end.net [216.15.131.2]) by hub.freebsd.org (Postfix) with ESMTP id 3553E14F50 for ; Fri, 13 Aug 1999 11:49:25 -0700 (PDT) (envelope-from rock@dead-end.net) Received: from dead-end.net (p3E9C3699.dip.t-dialin.net [62.156.54.153]) by dead-end.net (8.9.3/DEAD-END/1999022000) with ESMTP id UAA94552; Fri, 13 Aug 1999 20:46:57 +0200 (CEST) (envelope-from rock@dead-end.net) Message-ID: <37B46849.6C6D3764@dead-end.net> Date: Fri, 13 Aug 1999 20:47:37 +0200 From: "D. Rock" X-Mailer: Mozilla 4.6 [de] (Win98; U) X-Accept-Language: de MIME-Version: 1.0 To: Evren Yurtesen Cc: Bill Fumerola , Michael Mannsberger , freebsd-hackers@FreeBSD.ORG Subject: Re: (2) hey References: <37B343A8.A94CD343@ispro.net.tr> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG RFC 1035 isn't the only RFC under this aspect. While in RFC 1035 the host specification is a "should", in other RFC's it's a "must" They are: RFC 1123 Requirements for Internet Hosts -- Application and Support which has a pointer to RFC 952 DOD INTERNET HOST TABLE SPECIFICATION So, underscores in Hostnames aren't allowed. They are not forbidden in the DNS specification (you can in fact use underscores in different context in DNS), but because of the RFC's above. You should also take a look at RFC 2181 Clarifications to the DNS Specification specifically Section 11 Daniel Evren Yurtesen schrieb: > > Well, I am the person who has this problem. > The RFCs does not explicitly say that we should not use underscore > character > as far as I understood. But it suggests which characters we should use. [...] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message