From owner-freebsd-stable  Thu Sep 20 15: 5:29 2001
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To: Cy Schubert - ITSD Open Systems Group <Cy.Schubert@uumail.gov.bc.ca>
Subject: Re: LPD problems in 4.4-STABLE 
Cc: Hajimu UMEMOTO <ume@mahoroba.org>,
	ohartman@klima.physik.uni-mainz.de, freebsd-questions@FreeBSD.ORG,
	freebsd-stable@FreeBSD.ORG
In-reply-to: Your message of "Tue, 18 Sep 2001 14:01:53 PDT."
		<200109182102.f8IL29h65842@cwsys.cwsent.com> 
References: <200109182102.f8IL29h65842@cwsys.cwsent.com>  
Date: Thu, 20 Sep 2001 16:05:18 -0600
From: Warner Losh <imp@harmony.village.org>
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In message <200109182102.f8IL29h65842@cwsys.cwsent.com> Cy Schubert - ITSD Open Systems Group writes:
: RFC 1179 states that LPD connections should originate from ports 
: 721-731.  I know of only one LPD, MVS TCP/IP Print Services, that 
: enforces this.  I think it's fine to have an LPD option or options that 
: allows print to come from non-standard ports, e.g. < 1024 or any port, 
: however should LPR/LPD conform to the standard?  Having said that, all 
: UNIX systems I've worked on, except for AIX, do not completely adhere 
: to the RFC, hence printing from non-conforming systems would definitely 
: break.

One thing to keep in mind about the lpd RCF is that it was written by
someone who was working on TCP/IP for DOS.  He didn't document lpr/lpd
as it existed, but took some liberties to make his job easier.  So the
full force of this RFC isn't all that great.

/me used to work with Leo.

Warner

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