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Annotation of 43BSDReno/libexec/fingerd/fingerd.8, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980 The Regents of the University of California.
        !             2: .\" All rights reserved.
        !             3: .\"
        !             4: .\" Redistribution and use in source and binary forms are permitted provided
        !             5: .\" that: (1) source distributions retain this entire copyright notice and
        !             6: .\" comment, and (2) distributions including binaries display the following
        !             7: .\" acknowledgement:  ``This product includes software developed by the
        !             8: .\" University of California, Berkeley and its contributors'' in the
        !             9: .\" documentation or other materials provided with the distribution and in
        !            10: .\" all advertising materials mentioning features or use of this software.
        !            11: .\" Neither the name of the University nor the names of its contributors may
        !            12: .\" be used to endorse or promote products derived from this software without
        !            13: .\" specific prior written permission.
        !            14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            17: .\"
        !            18: .\"    @(#)fingerd.8   6.3 (Berkeley) 6/24/90
        !            19: .\"
        !            20: .TH FINGERD 8 "June 24, 1990"
        !            21: .UC 6
        !            22: .SH NAME
        !            23: fingerd \- remote user information server
        !            24: .SH SYNOPSIS
        !            25: .B fingerd
        !            26: .SH DESCRIPTION
        !            27: .I Fingerd
        !            28: is a simple protocol based on RFC742 that provides an interface to the
        !            29: Name and Finger programs at several network sites.
        !            30: The program is supposed to return a friendly,
        !            31: human-oriented status report on either the system at the moment
        !            32: or a particular person in depth.
        !            33: There is no required format and the
        !            34: protocol consists mostly of specifying a single ``command line''.
        !            35: .PP
        !            36: .I Fingerd
        !            37: listens for TCP requests at port 79.
        !            38: Once connected it reads a single command line
        !            39: terminated by a <CRLF> which is passed to
        !            40: .IR finger (1).
        !            41: .I Fingerd
        !            42: closes its connections as soon as the output is finished.
        !            43: .PP
        !            44: If the line is null (i.e. just a <CRLF> is sent) then 
        !            45: .I finger
        !            46: returns a ``default'' report that lists all people logged into
        !            47: the system at that moment.
        !            48: .PP
        !            49: If a user name is specified (e.g. eric<CRLF>) then the
        !            50: response lists more extended information for only that particular user,
        !            51: whether logged in or not.
        !            52: Allowable ``names'' in the command line include both ``login names''
        !            53: and ``user names''.
        !            54: If a name is ambiguous, all possible derivations are returned.
        !            55: .SH SEE ALSO
        !            56: finger(1)
        !            57: .SH BUGS
        !            58: Connecting directly to the server from a TIP
        !            59: or an equally narrow-minded TELNET-protocol user program can result
        !            60: in meaningless attempts at option negotiation being sent to the
        !            61: server, which will foul up the command line interpretation.
        !            62: .I Fingerd
        !            63: should be taught to filter out IAC's and perhaps even respond
        !            64: negatively (IAC WON'T) to all option commands received.

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