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tigervncpasswd(1)

NAME

   tigervncpasswd - change the VNC password

SYNOPSIS

   vncpasswd [passwd-file]
   vncpasswd -f

DESCRIPTION

   tigervncpasswd  allows  you  to  set  the  password  used to access VNC
   desktops.  Its default behavior is to prompt for  a  VNC  password  and
   then store an obfuscated version of this password to passwd-file (or to
   $HOME/.vnc/passwd if no password file  is  specified.)   The  vncserver
   script  runs  vncpasswd  the first time you start a VNC desktop, and it
   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 (unless the -f
   command-line option is used-- see below),  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 plain-text 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.

OPTIONS

   -f     Filter mode.  Read a plain-text password from stdin and write an
          encrypted version to stdout.  Note that in filter mode, short or
          even empty passwords will be silently accepted.

FILES

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

SEE ALSO

   xtigervncviewer(1), tigervncserver(1), Xtigervnc(1) tigervncconfig(1),
   http://www.tigervnc.org

AUTHORS

   Tristan  Richardson,  RealVNC Ltd., Antoine Martin, D. R. Commander and
   others.

   VNC was originally developed by the  RealVNC  team  while  at  Olivetti
   Research  Ltd  /  AT&T Laboratories Cambridge.  TightVNC additions were
   implemented by Constantin  Kaplinsky.  Many  other  people  have  since
   participated  in  development, testing and support. This manual is part
   of the TigerVNC software suite.



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