vncpasswd - change the VNC password
vncpasswd [passwd-file] vncpasswd -f
vncpasswd(1) Virtual Network Computing vncpasswd(1)
NAME
vncpasswd - change the VNC password
SYNOPSIS
vncpasswd [passwd-file]
vncpasswd -f
DESCRIPTION
vncpasswd 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 com-
mand-line option is used-- see below), and only the first eight charac-
ters 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 permis-
sions (read and write only by the owner.) However, when accessing a
VNC desktop, a challenge-response mechanism is used over the wire mak-
ing 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.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | x11/server/xvnc |
+---------------+------------------+
|Stability | Volatile |
+---------------+------------------+
SEE ALSO
vncviewer(1), vncserver(1), Xvnc(1) vncconfig(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 par-
ticipated in development, testing and support. This manual is part of
the TigerVNC software suite.
NOTES
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://github.com/TigerVNC/tigervnc/ar-
chive/v1.7.1.tar.gz
Further information about this software can be found on the open source
community website at http://tigervnc.org/.
TigerVNC vncpasswd(1)