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NAME    [Toc]    [Back]

     talkd - remote user communication server

SYNOPSIS    [Toc]    [Back]


DESCRIPTION    [Toc]    [Back]

     Talkd is the server that notifies a user that  someone  else
wants to initiate
  a  conversation.   It acts as a repository of invitations, responding
     to requests by clients wishing to rendezvous to hold a  conversation.  In
     normal  operation,  a  client,  the caller, initiates a rendezvous by sending
     a   CTL_MSG   to   the   server   of   type   LOOK_UP   (see
<protocols/talkd.h>).  This
     causes  the  server to search its invitation tables to check
if an invitation
 currently exists for the caller (to speak to the callee
specified in
     the message).  If the lookup fails, the caller then sends an
     message causing the server to broadcast an  announcement  on
the callee's
     login  ports  requesting contact.  When the callee responds,
the local
     server uses the recorded invitation to respond with the  appropriate rendezvous
  address  and  the caller and callee client programs
establish a
     stream  connection  through  which  the  conversation  takes

SEE ALSO    [Toc]    [Back]

     talk(1), write(1)

HISTORY    [Toc]    [Back]

     The talkd command appeared in 4.3BSD.

OpenBSD      3.6                          March      16,     1991
[ Back ]
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