index(8) [plan9 man page]

0intro	0intro	intro  0intro  auth auth auth.srv auth changeuser
auth convkeys auth guard.srv auth printnetkey  auth  status  auth
wrkey  auth  b.com  b.com  boot  boot booting booting bootp bootp
rarpd bootp tftpd bootp btrace btrace cpurc  cpurc  termrc  cpurc
cron  cron  dkconfig  dkconfig	exsort fs fs fs fsconfig fsconfig
40meg home 80meg home Disclabel home home home	personalize  home
update home echo httpd httpd httpd init init arpd ipconfig ipcon-
fig ipconfig rip ipconfig kfscmd kfscmd ksync kfscmd dkcpu listen
dkcpunote  listen  dkdcon  listen  dkdiscard listen dkecho listen
dkexportfs listen dkguard listen dklogin listen dkrexexec  listen
dksmtp	listen	dkticket  listen  dkwhoami  listen il17005 listen
il17006 listen il17007 listen il17009 listen il565  listen  il566
listen	il7  listen il9 listen listen listen tcp17007 listen tcp2
listen tcp21 listen  tcp23  listen  tcp25  listen  tcp513  listen
tcp515	listen	tcp564 listen tcp565 listen tcp566 listen tcp6000
listen tcp7 listen tcp80 listen tcp9 listen lp lp mkext mkfs mkfs
mkfs  aux/mouse mouse mouse mouse cs ndb csquery ndb dns ndb dns-
query ndb mkdb ndb mkhash ndb ndb ndb query ndb  newuser  newuser
9auth  nfsserver  nfsserver nfsserver pcnfsd nfsserver portmapper
nfsserver aux/pcmcia  pcmcia  pcmcia  pcmcia  pip  pip	plan9.ini
plan9.ini  format prep prep prep qer qer runq qer scuzz scuzz se-
curenet securenet snoopy snoopy swap  swap  stats  sysmon  sysmon
sysmon vga vga

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

NAME

       listen,	dkcpu, dkcpunote, dkdiscard, dkecho, dkexportfs, dkrexexec, dkticket, dkwhoami, dksmtp, dkdcon, dklogin, dkguard, il7, il9, il565,
       il566, il17005, il17006, il17007, il17009, tcp2, tcp7, tcp9, tcp21, tcp23, tcp80, tcp25, tcp513, tcp515, tcp564, tcp565, tcp566,  tcp17007,
       tcp6000 - listen for calls on a network device

SYNOPSIS

       aux/listen [-q] [-d srvdir] [-t trustsrvdir] [name]]

DESCRIPTION

       listen  announces  itself  to  a network as name (by default the contents of /env/sysname) and listens for inbound calls to local services.
       Net is the network device on which to listen, by default /net/dk.  The services available are executable files in  srvdir  or  trustsrvdir.
       If  neither  srvdir  nor trustsrvdir is given, listen looks for executable files in /bin/service.  Services found in srvdir are executed as
       user none; services found in trustsrvdir as executed as the user who started listen.  Option -q suppresses affirmative log information.

       Service names are made by concatenating the name of the network with the name of the service or port.  For example, an inbound call on  the
       TCP network for port 565 executes service tcp565, while a call on the Datakit network for service whoami executes service dkwhoami.

       The following services are available in /bin/service.

       dkcpu il17005
	      server for cpu(1) command.

       dkcpunote il17006
	      /proc/pid/notify forwarding for cpu(1).

       dkexportfs il17007 tcp17007
	      serve a piece of the name space using the Plan 9 file system protocol, with authentication (typically used by cpu(1)).

       tcp564 like 17007, without authentication (used by Unix systems to see Plan 9 files).

       dkrexexec il17009
	      remote execution.

       dkwhoami il565 tcp565
	      report the address of the incoming call.

       tcp21  FTP daemon

       tcp80  HTTP daemon; see httpd(8).

       tcp515 LP daemon; see lp(8).

       tcp6000
	      X-window callback

       dksmtp tcp25
	      mail delivery.

       dkdcon research Unix terminal connection.

       dklogin
	      generic terminal connection.

       tcp23  telnet terminal connection.

       tcp513 rlogin terminal connection.

       tcp2   hold the connection open; sleep for a long time

       dkecho il7 tcp7
	      echo any bytes received (bit mirror)

       dkdiscard il9 tcp9
	      consume any bytes received (bit bucket)

       The following services are available in /bin/service.auth.

       dkguard tcp566
	      check a SecureNet box.

       dkticket il566
	      authentication requests.

FILES

       /net/dk
	      by convention, Datakit device bind point

       /net/il
	      by convention, IL device bind point

       /net/tcp
	      by convention, TCP device bind point

       /env/sysname
	      default announced name

SOURCE

       The source to listen is in /sys/src/cmd/aux/listen.c.  The other commands are rc(1) scripts in /rc/bin/service.

SEE ALSO

       dkconfig(8), auth(6), dk(3), dial(2)

																	 LISTEN(8)