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Man Pages


Manual Reference Pages  -  VNCPASSWD (1)

NAME

vncpasswd - change a VNC password

CONTENTS

Synopsis
Description
Files
See Also
Author

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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RealVNC Ltd VNCPASSWD (1) 03 Mar 2005

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