talkd(1M)                                               talkd(1M)



     NAME
          talkd - remote user communication server

     SYNOPSIS
          /etc/talkd

     DESCRIPTION
          talkd is the server that notifies a user that somebody else
          wants to initiate a conversation.  It acts a repository of
          invitations, responding to requests by clients wishing to
          hold a conversation.

          In normal operation, a client, the caller, initiates a ses-
          sion 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 mes-
          sage).  If the lookup fails, the caller then sends an AN-
          NOUNCE message causing the server to broadcast an announce-
          ment on the callee's login ports requesting contact.  When
          the callee responds, the local server uses the recorded in-
          vitation to respond with the appropriate rendezvous address
          and the caller and callee client programs establish a stream
          connection through which the conversation takes place.

     FILES
          /etc/talkd

     SEE ALSO
          talk(1N), write(1).

























     April, 1990                                                     1