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From: STJOHNS@SRI-NIC.ARPA
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Multiple 331 passwd responses in FTP protocol
Message-ID: <[SRI-NIC.ARPA]Fri,.4.Sep.87.18:01:15.PDT.STJOHNS>
Date: Fri, 4-Sep-87 21:01:00 EDT
Article-I.D.: <[SRI-NIC.ARPA]Fri,.4.Sep.87.18:01:15.PDT.STJOHNS>
Posted: Fri Sep  4 21:01:00 1987
Date-Received: Sat, 5-Sep-87 23:23:40 EDT
References: <8709042059.AA06511@columbia-pdn>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 11

No, no, no!!!

DO  NOT extend the meaning of the USER command or for that matter
that of the PASS command.   They  have  very  specific  meanings.
Instead,  create  your  own extension commands "XCPW" and "XGRP".
These can be specified via the "quote" command that  is  supposed
to  be part of all FTP implementations.  This is within the scope
of the standard.  Please, be sensible - standards are there for a
reason, interoperability.

Mike