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vnc4passwd(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
   appropriate  -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  trivially
   find  out  the plaintext password, so vncpasswd always sets appropriate
   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 maintained
   by RealVNC Ltd.  See http://www.realvnc.com for details.



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