tigervncpasswd - change the VNC password
tigervncpasswd [
passwd-file]
tigervncpasswd -f
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.
- -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.
- $HOME/.vnc/passwd
- Default location of the VNC password file.
xtigervncviewer(1),
Xtigervnc(1) tigervncconfig(1),
tigervncsession(8)
https://www.tigervnc.org
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.