TALKD(ADMN)                                UNIX System V



     Name
          talkd - remote user communication server


     Syntax
          /etc/talkd


     Description
          Talkd is the server that notifies a user that somebody  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
          talk client 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 client.  If the
          lookup fails, the caller  then  sends  an  ANNOUNCE  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 place.


     See Also
          talk(TC), write(TC)


     (printed 8/17/89)                                  TALKD(ADMN)