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talkd(8) [osf1 man page]

talkd(8)						      System Manager's Manual							  talkd(8)

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 conver- sation 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. FILES
Specifies the command path Defines Internet socket assignments Contains data about users who are currently logged in 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. RELATED INFORMATION
Commands: inetd(8), syslogd(8), talk(1) delim off talkd(8)

Check Out this Related Man Page

TALK(1) 						    BSD General Commands Manual 						   TALK(1)

talk -- talk to another user SYNOPSIS
talk person [ttyname] DESCRIPTION
The talk utility is a visual communication program which copies lines from your terminal to that of another user. Options available: person If you wish to talk to someone on your own machine, then person is just the person's login name. If you wish to talk to a user on another host, then person is of the form 'user@host' or 'host!user' or 'host:user'. ttyname If you wish to talk to a user who is logged in more than once, the ttyname argument may be used to indicate the appropriate terminal name, where ttyname is of the form 'ttyXX'. When first called, talk sends the message Message from TalkDaemon@his_machine... talk: connection requested by your_name@your_machine. talk: respond with: talk your_name@your_machine to the user you wish to talk to. At this point, the recipient of the message should reply by typing talk your_name@your_machine It does not matter from which machine the recipient replies, as long as his login-name is the same. Once communication is established, the two parties may type simultaneously, with their output appearing in separate windows. Typing control-L '^L' will cause the screen to be reprinted. Typing control-D '^D' will clear both parts of your screen to be cleared, while the control-D character will be sent to the remote side (and just displayed by this talk client). Your erase, kill, and word kill characters will behave normally. To exit, just type your interrupt character; talk then moves the cursor to the bottom of the screen and restores the terminal to its previous state. Permission to talk may be denied or granted by use of the mesg(1) command. At the outset talking is allowed. CONFIGURATION
The talk utility relies on the talkd system daemon. See talkd(8) for information about enabling talkd. FILES
/etc/hosts to find the recipient's machine /var/run/utmpx to find the recipient's tty SEE ALSO
mail(1), mesg(1), wall(1), who(1), write(1), talkd(8) HISTORY
The talk command appeared in 4.2BSD. In FreeBSD 5.3, the default behaviour of talk was changed to treat local-to-local talk requests as originating and terminating at localhost. Before this change, it was required that the hostname (as per gethostname(3)) resolved to a valid IPv4 address (via gethostbyname(3)), making talk unsuitable for use in configurations where talkd(8) was bound to the loopback interface (normally for security reasons). BUGS
The version of talk released with 4.3BSD uses a protocol that is incompatible with the protocol used in the version released with 4.2BSD. Multibyte characters are not recognized. BSD
August 21, 2008 BSD

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