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TALKD(8) FreeBSD System Manager's Manual TALKD(8)
NAME
talkd - remote user communication server
SYNOPSIS
talkd
DESCRIPTION
The talkd utility 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 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(1), write(1)
HISTORY
The talkd utility appeared in 4.3BSD.
FreeBSD 14.0-RELEASE-p11 December 11, 1993 FreeBSD 14.0-RELEASE-p11