TALKD(8)TALKD(8)NAMEtalkd - remote user communication server
SYNOPSIStalkdDESCRIPTION
Talkd is the server that notifies a user that somebody else wants to
initiate a conversation. It acts a repository of invitations, respond‐
ing to requests by clients wishing to rendezvous to hold a conversa‐
tion. In normal operation, a client, the caller, initiates a ren‐
dezvous by sending a CTL_MSG to the server of type LOOK_UP (see <proto‐
cols/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 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 ALSOtalk(1), write(1)4.3 Berkeley Distribution June 24, 1990 TALKD(8)