# 2.11BSD#431 - /usr/man/cat8/fingerd.0

    FINGERD(8)	    UNIX Programmer's Manual	       FINGERD(8)

    NAME
         fingerd - remote user information server

    SYNOPSIS
         fingerd [-s][-l][-p filename ]

    DESCRIPTION
         Fingerd is a simple protocol based on RFC1196 that provides
         an interface to the Name and Finger programs at several net-
         work sites.  The program is supposed to return a friendly,
         human-oriented status report on either the system at the
         moment or a particular person in depth.  There is no
         required format and the protocol consists mostly of specify-
         ing a single ``command line''.

         Fingerd listens for TCP requests at port 79.  Once connected
         it reads a single command line terminated by a <CRLF> which
         is passed to finger(1).  Fingerd closes its connections as
         soon as the output is finished.

         If the line is null (i.e. just a <CRLF> is sent) then finger
         returns a ``default'' report that lists all people logged
         into the system at that moment.

         If a user name is specified (e.g.	eric<CRLF> ) then the
         response lists more extended information for only that par-
         ticular user, whether logged in or not.  Allowable ``names''
         in the command line include both ``login names'' and ``user
         names''.  If a name is ambiguous, all possible derivations
         are returned.

         The following options may be passed to fingerd as server
         program arguments in /etc/inetd.conf:

         -s   Enable secure mode.  Queries without a user name are
    	  rejected and forwarding of queries to other remote
    	  hosts is denied.

         -l   Enable logging.  The name of the host originating the
    	  query is reported via syslog(3) at LOG_NOTICE priority.

         -p   Use an alternate program as the local information pro-
    	  vider.  The default local program executed by fingerd
    	  is finger(1).  By specifying a customized local server,
    	  this option allows a system manager to have more con-
    	  trol over what information is provided to remote sites.

    SEE ALSO
         finger(1)

    BUGS
         Connecting directly to the server from a TIP or an equally

    Printed 11/24/99	  April 1, 1995                         1

    FINGERD(8)	    UNIX Programmer's Manual	       FINGERD(8)

         narrow-minded TELNET-protocol user program can result in
         meaningless attempts at option negotiation being sent to the
         server, which will foul up the command line interpretation.
         Fingerd should be taught to filter out IAC's and perhaps
         even respond negatively (IAC WON'T) to all option commands
         received.

    HISTORY
         The fingerd command appeared in 4.3BSD.

    Printed 11/24/99	  April 1, 1995                         2

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