NAME¶
talkd
—
remote user communication server
SYNOPSIS¶
/usr/sbin/in.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
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.
OPTIONS¶
[
-d
] Debug mode; writes
copious logging and debugging information 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
4.3BSD.