FINGERD(8)                  System Manager's Manual                 FINGERD(8)


     fingerd - remote user information server


     fingerd [-lMmpSsu] [-P filename]


     fingerd implements a simple protocol based on RFC 1288 that provides an
     interface to the Name and Finger programs at several network 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 specifying a
     single ``command line''.

     fingerd is started by inetd(8), which 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(1) returns
     a ``default'' report that lists all people logged into the system at that

     If a user name is specified (e.g., eric<CRLF>) then the response lists
     more extended information for only that particular 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:

     -l      Enable logging.  The name of the host originating the query and
             the actual request is reported via syslog(3) at LOG_NOTICE
             priority.  A request of the form `/W' or `/w' will return long
             output.  Empty requests will return all currently logged in
             users.  All other requests look for specific users.  See RFC 1288
             for details.

     -M      Enables matching of user names.  This is disabled by default if
             the system is running YP.

     -m      Prevent matching of user names.  User is usually a login name;
             however, matching will also be done on the users' real names,
             unless the -m option is supplied.

     -P filename
             Use an alternate program as the local information provider.  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 control over what information is provided to
             remote sites.

     -p      Prevents finger(1) from displaying the contents of the ``.plan''
             and ``.project'' files.

     -S      Prints user information in short mode, one line per user.  This
             overrides the ``Whois switch'' that may be passed in from the
             remote client.

     -s      Enable secure mode.  Forwarding of queries to other remote hosts
             is denied.

     -u      Queries without a user name are rejected.


     finger(1), inetd(8)


     D. Zimmerman, The Finger User Information Protocol, RFC 1288, December


     The fingerd command appeared in 4.3BSD.

OpenBSD 5.9                    January 15, 2015                    OpenBSD 5.9

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