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 trivially 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 maintained
by RealVNC Ltd. See http://www.realvnc.com for details.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability | |
+-----------------------------+-----------------------------+
|Interface Stability | |
+-----------------------------+-----------------------------+
RealVNC Ltd 03 Mar 2005 vncpasswd(1)