vncpasswd(1)		  Virtual Network Computing		 vncpasswd(1)



NAME
       vncpasswd - change a VNC password

SYNOPSIS
       vncpasswd [passwd-file]

DESCRIPTION
       vncpasswd  allows you to set the password used to access VNC desktops.
       It stores an obfuscated version of the  password	 in  the  given	 file
       (default	 $HOME/.vnc/passwd).  The vncserver script runs vncpasswd the
       first time you start a VNC desktop, and invokes Xvnc with  the  appro-
       priate  -rfbauth	 option.  vncviewer can also be given a password file
       to use via the -passwd option.

       The password must be at least six characters long, and only the	first
       eight  characters  are  significant.  Note that the stored password is
       not encrypted securely - anyone who has access to this file can	triv-
       ially find out the plaintext password, so vncpasswd always sets appro-
       priate permissions (read and write only by the owner).  However,	 when
       accessing  a  VNC  desktop a challenge-response mechanism is used over
       the wire making it hard for anyone to crack  the	 password  simply  by
       snooping on the network.


FILES
       $HOME/.vnc/passwd
	      Default location of the VNC password file.


SEE ALSO
       vncviewer(1), vncserver(1), Xvnc(1) vncconfig(1),
       http://www.realvnc.com


AUTHOR
       Tristan Richardson, RealVNC Ltd.

       VNC  was	 originally  developed	by the RealVNC team while at Olivetti
       Research Ltd / AT&T Laboratories Cambridge.  It	is  now	 being	main-
       tained by RealVNC Ltd.  See http://www.realvnc.com for details.



RealVNC Ltd			 29 July 2003			 vncpasswd(1)

UNIX/Linux commands referenced on this page:

1. vncserver
2. script
3. time
4. Xvnc
5. at
6. who
7. file
8. find
9. write