in.fingerd(1M) manual page
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in.fingerd, fingerd - remote user information server
/usr/sbin/in.fingerd
SUNWcsu
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 RETURN-LINEFEED
and passes the arguments
to finger(1)
, prepended with -s. fingerd closes its connections as soon as
the output is finished.
You must invoke fingerd from inetd. See inetd(1M)
for more information.
- /var/adm/utmp
- user and accounting information
- /etc/passwd
- system password file
- /var/adm/lastlog
- last login times
- $HOME/.plan
- user’s plans
- $HOME/.project
- user’s projects
finger(1)
, inetd(1M)
Harrenstien, Ken, NAME/FINGER
, RFC
742, Network Information Center, SRI
International, Menlo Park, Calif., December 1977.
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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