| TALKD(8) | System Manager's Manual | TALKD(8) |
talkd — remote
user communication server
/usr/sbin/in.talkd |
[-dpq] |
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.
[-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.
The talkd command appeared in
4.3BSD.
| March 16, 1991 | Linux NetKit (0.17) |