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__NAME__


talkd - remote user communication server
__SYNOPSIS__


talkd [[-dpq]
__DESCRIPTION__


Talkd is the server that notifies a user that someone else
wants to initiate a conversation. It acts 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 mes- sage). 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.
__OPTIONS__


[[-d] Debug mode; writes copious logging and debugging infor-
mation to /var/log/talkd.log.


[[-p] Packet logging mode; writes copies of malformed packets to /var/log/talkd.packets. This is useful for debugging interoperability problems.


[[-q] Don't log successful connects.
__SEE ALSO__


talk(1), write(1)
__HISTORY__


The talkd command appeared in 4.3 BSD
.


Linux NetKit (0.17) March 16, 1991 1
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