Received: from localhost by CS.UTK.EDU with SMTP (cf v2.9s-UTK) id PAA05030; Sat, 16 Mar 1996 15:11:08 -0500 Received: by CS.UTK.EDU (bulk_mailer v1.4); Sat, 16 Mar 1996 15:10:26 -0500 Received: from glaucus.cso.uiuc.edu by CS.UTK.EDU with SMTP (cf v2.9s-UTK) id PAA04961; Sat, 16 Mar 1996 15:10:22 -0500 Received: from resnick1.isdn.uiuc.edu by glaucus.cso.uiuc.edu (AIX 3.2/UCB 5.64/4.03) id AA09205; Sat, 16 Mar 1996 14:09:23 -0600 X-Sender: resnick@glaucus.cso.uiuc.edu Message-Id: In-Reply-To: <19960316195451.17978.qmail@koobera.math.uic.edu> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Mailer: Eudora [Macintosh version 3.0a86-4.96] Date: Sat, 16 Mar 1996 14:09:59 -0600 To: djb@koobera.math.uic.edu (D. J. Bernstein) From: Pete Resnick Subject: Re: Free insertion of linear-white-space Cc: drums@cs.utk.edu On 3/16/96 at 1:54 PM, D. J. Bernstein wrote: >> The underscore is NOT a valid character in a host name. > >Nor is a digit at the beginning. No, a digit is legal as per RFC 1123, section 2.1: 2.1 Host Names and Numbers The syntax of a legal Internet host name was specified in RFC-952 [DNS:4]. One aspect of host name syntax is hereby changed: the restriction on the first character is relaxed to allow either a letter or a digit. Host software MUST support this more liberal syntax. The underscore is still not valid. pr -- Pete Resnick QUALCOMM Incorporated Home: (217)337-1905 / Fax: (217)337-1980