1.\" $NetBSD: talkd.8,v 1.7 2001/04/04 09:56:56 wiz Exp $ 2.\" Copyright (c) 1983, 1991, 1993 3.\" The Regents of the University of California. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. All advertising materials mentioning features or use of this software 14.\" must display the following acknowledgement: 15.\" This product includes software developed by the University of 16.\" California, Berkeley and its contributors. 17.\" 4. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" @(#)talkd.8 8.2 (Berkeley) 12/11/93 34.\" 35.Dd July 5, 1998 36.Dt TALKD 8 37.Os 38.Sh NAME 39.Nm talkd 40.Nd remote user communication server 41.Sh SYNOPSIS 42.Nm 43.Op Fl dl 44.Sh DESCRIPTION 45.Nm 46is the server that notifies a user that someone else wants to 47initiate a conversation. 48It acts as a repository of invitations, responding to requests 49by clients wishing to rendezvous to hold a conversation. 50In normal operation, a client, the caller, 51initiates a rendezvous by sending a 52.Tn CTL_MSG 53to the server of 54type 55.Tn LOOK_UP 56(see 57.Aq Pa protocols/talkd.h ) . 58This causes the server to search its invitation 59tables to check if an invitation currently exists for the caller 60(to speak to the callee specified in the message). 61If the lookup fails, 62the caller then sends an 63.Tn ANNOUNCE 64message causing the server to 65broadcast an announcement on the callee's login ports requesting contact. 66When the callee responds, the local server uses the 67recorded invitation to respond with the appropriate rendezvous 68address and the caller and callee client programs establish a 69stream connection through which the conversation takes place. 70.Sh OPTIONS 71.Nm 72supports the following options: 73.Bl -tag -width 12345 74.It Fl d 75The 76.Fl d 77option turns on debugging logging. 78.It Fl l 79The 80.Fl l 81option turns on accounting logging for 82.Nm 83via the 84.Xr syslogd 8 85service. 86.El 87.Sh SEE ALSO 88.Xr talk 1 , 89.Xr write 1 , 90.Xr syslog 3 , 91.Xr syslogd 8 92.Sh HISTORY 93The 94.Nm 95command appeared in 96.Bx 4.3 . 97