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talkd(8)


NAME

  talkd, ntalkd - The remote communications server for the talk command


SYNOPSIS

  talkd

  ntalkd


DESCRIPTION

  The talkd server notifies a user or callee when a client or caller wants to
  initiate a conversation. The talkd daemon sets up the conversation if the
  callee accepts the invitation.  The caller initiates a conversation by
  executing the talk command and specifying the callee.	 The callee accepts
  the invitation by executing the talk command specifying the caller.

  The talkd daemon listens at a socket for a LOOK_UP request from a local or
  remote talk client.  On receiving a LOOK_UP request, talkd scans its
  internal invitation table for an entry that pairs the client (the local or
  remote talk process) with a caller.

  If an entry exists in the talkd daemon's international invitation table,
  the talkd daemon assumes that the client process is the callee. The talkd
  daemon returns the appropriate rendezvous address to the talk process for
  the callee.  The callee process then establishes a stream connection with
  the caller process.

  If an entry does not exist in the invitation table, the talkd daemon
  assumes that the client process is the caller. The talkd daemon then
  receives the client process's ANNOUNCE request. When talkd receives the
  ANNOUNCE request, talkd broadcasts an invitation on the console of the
  remote host where the callee is logged in, unless the caller specifies a
  particular tty.  At approximately 1-minute intervals, talkd rebroadcasts
  the invitation until either the invitation is answered by the callee or the
  call is canceled by the caller.

  Debugging messages are sent to syslogd(8). For further information on the
  files used by this daemon, see the syslogd command.


NOTES

  The Tru64 UNIX version of talkd uses the talk 4.3BSD protocol. This command
  is sometimes referred to as ntalkd. It is not compatible with 4.2BSD
  versions of talk.


FILES

  /usr/sbin/talkd
      Specifies the command path

  /etc/services
      Defines Internet socket assignments

  /var/adm/utmp
      Contains data about users who are currently logged in


SEE ALSO

  Commands: talk(1), inetd(8), syslogd(8)

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