NAME

       talkd — remote user communication server

SYNOPSIS

       talkd [options]

DESCRIPTION

       talkd  is the server that notifies a user that someone else wants to initiate a conversation.  It acts as
       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

       -l, --logging
               Enable more verbose logging to syslog.

       -d, --debug
               Enable debug mode.

       -t, --timeout seconds
               Set timeout value to seconds.

       -i, --idle-timeout seconds
               Set idle timeout value to seconds.

       -r, --request-ttl seconds
               Set request time-to-live value to seconds.

       -a, --acl filename
               Read the site-wide ACLs from filename.

       -S, --strict-policy
               Apply a strict ACL policy.

       -?, --help
               Display a help list.

       --usage
               Display a short usage message.

       -V, --version
               Display program version.

SEE ALSO

       talk(1), write(1)

HISTORY

       The talkd command appeared in 4.3BSD.

GNU Network Utilities                           February 9, 2019                                        TALKD(8)