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fingerd.8
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fingerd.c
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pathnames.h
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Editing: fingerd.8
.\" Copyright (c) 1980, 1991, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" @(#)fingerd.8 8.1 (Berkeley) 6/4/93 .\" $FreeBSD$ .\" .Dd November 19, 2014 .Dt FINGERD 8 .Os .Sh NAME .Nm fingerd .Nd remote user information server .Sh SYNOPSIS .Nm .Op Fl d .Op Fl k .Op Fl s .Op Fl l .Op Fl p Ar filename .Sh DESCRIPTION The .Nm utility uses a simple protocol based on .%T RFC1196 that provides an interface to .Xr finger 1 at several network sites. It 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 .Dq "command line" , thus, .Nm can also be used to implement other protocols in conjunction with the .Fl p flag. .Pp The .Nm utility is started by .Xr inetd 8 , which listens for .Tn TCP requests at port 79. Once connected it reads a single command line terminated by a .Aq Tn CRLF which is passed to .Xr finger 1 . The .Nm utility closes its connections as soon as the output is finished. .Pp If the line is null (i.e., just a .Aq Tn CRLF is sent) then .Xr finger 1 returns a .Dq default report that lists all people logged into the system at that moment. .Pp If a user name is specified (e.g.,\& .Pf eric Aq Tn CRLF ) then the response lists more extended information for only that particular user, whether logged in or not. Allowable .Dq names in the command line include both .Dq login names and .Dq user names . If a name is ambiguous, all possible derivations are returned. .Pp The following options may be passed to .Nm as server program arguments in .Pa /etc/inetd.conf : .Bl -tag -width indent .It Fl d Enable debugging mode. In debugging mode, .Nm will not attempt any network-related operations on .Va stdin , and it will print the full .Nm finger command line to .Va stderr before executing it. .It Fl k Suppress login information. See the description of the .Fl k option in .Xr finger 1 for details. .It Fl s Enable secure mode. Queries without a user name are rejected and forwarding of queries to other remote hosts is denied. .It Fl l Enable logging. The name of the host originating the query is reported via .Xr syslog 3 at LOG_NOTICE priority. .It Fl p Use an alternate program as the local information provider. The default local program executed by .Nm is .Xr 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. If .Fl p is specified, .Nm will also set the environment variable .Ev FINGERD_REMOTE_HOST to the name of the host making the request. .El .Sh SEE ALSO .Xr finger 1 , .Xr inetd 8 .Sh HISTORY The .Nm utility appeared in .Bx 4.3 .
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