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2 __NAME__
3
4
5 talkd - remote user communication server
6 __SYNOPSIS__
7
8
9 talkd [[-dpq]
10 __DESCRIPTION__
11
12
13 Talkd is the server that notifies a user that someone else
14 wants to initiate a conversation. It acts a repository of
15 invitations, responding to requests by clients wishing to
16 rendezvous to hold a conversation. In normal operation, a
17 client, the caller, initiates a rendezvous by sending a
18 CTL_MSG to the server of type
19 LOOK_UP (see protocols/talkd.h).
20 This causes the server to search its invitation tables to
21 check if an invitation currently exists for the caller (to
22 speak to the callee specified in the mes- sage). If the
23 lookup fails, the caller then sends an
24 ANNOUNCE message causing the server to
25 broadcast an announcement on the callee's login ports
26 requesting contact. When the callee responds, the local
27 server uses the recorded invitation to respond with the
28 appropriate rendezvous address and the caller and callee
29 client programs establish a stream connection through which
30 the conversation takes place.
31 __OPTIONS__
32
33
34 [[-d] Debug mode; writes copious logging and debugging infor-
35 mation to /var/log/talkd.log.
36
37
38 [[-p] Packet logging mode; writes copies of malformed packets to /var/log/talkd.packets. This is useful for debugging interoperability problems.
39
40
41 [[-q] Don't log successful connects.
42 __SEE ALSO__
43
44
45 talk(1), write(1)
46 __HISTORY__
47
48
49 The talkd command appeared in 4.3 BSD
50 .
51
52
2 perry 53 Linux !NetKit (0.17) March 16, 1991 1
1 perry 54 ----
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