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finger(1)



fingerd(1M)                    DG/UX R4.11MU05                   fingerd(1M)


NAME
       fingerd, in.fingerd - remote user information server

SYNOPSIS
       in.fingerd

DESCRIPTION
       fingerd implements the server side of the Name/Finger protocol,
       specified in RFC 742.  The Name/Finger protocol provides a remote
       interface to programs which display information on system status and
       individual users.  The protocol imposes little structure on the
       format of the exchange between client and server.  The client
       provides a single command line to the finger server which returns a
       printable reply.

       fingerd waits for connections on TCP port 79.  Once connected it
       reads a single command line terminated by a <RETURN-LINE-FEED> which
       is passed to finger(1).  fingerd closes its connections as soon as
       the output is finished.

       If the line is null (only a RETURN-LINEFEED is sent) then finger
       returns a default report that lists all users logged into the system
       at that moment.

       If a user name is specified (for instance, eric<RETURN-LINE-FEED>)
       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.

FILES
       /var/utmp           who is logged in
       /etc/passwd         for users' names
       /etc/inetd.conf     enable or disable
       /var/adm/lastlog    last login times
       $HOME/.plan         plans
       $HOME/.project      projects

SEE ALSO
       finger(1)

       Harrenstien, Ken, NAME/FINGER, RFC 742, Network Information Center,
       SRI International, Menlo Park, Calif., December 1977.

NOTES
       fingerd is disabled by default.  To enable fingerd, the administrator
       must uncomment the appropriate line from the /etc/inetd.conf
       configuration file.

       Connecting directly to the server from a TIP or an equally 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 will not)
       to all option commands received.


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Typewritten Software • bear@typewritten.org • Edmonds, WA 98026