Provided by: tigervnc-tools_1.12.0+dfsg-4ubuntu0.22.04.1_amd64 

NAME
tigervncpasswd - change the VNC password
SYNOPSIS
tigervncpasswd [passwd-file]
tigervncpasswd -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 tigervncserver script runs tigervncpasswd the
first time you start a VNC desktop, and it invokes Xtigervnc with the appropriate -rfbauth option.
xtigervncviewer 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 tigervncpasswd 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.
A view-only password must be separated from the normal password by a newline character.
FILES
$HOME/.vnc/passwd
Default location of the VNC password file.
SEE ALSO
xtigervncviewer(1), Xtigervnc(1) tigervncconfig(1), tigervncsession(8)
https://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.
TigerVNC tigervncpasswd(1)