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vncpasswd¶
Name¶
vncpasswd - VNC® Server password utility
Synopsis¶
vncpasswd [OPTION...] MODE
Description¶
vncpasswd manages password(s) when the VNC password authentication scheme is chosen for VNC Server. It is an alternative to specifying a new, or changing an existing, password via the VNC Server user interface. Note vncpasswd is not relevant when VNC Server is set to use the system authentication or single sign-on (SSO) schemes.
Modes¶
Run vncpasswd with one of the following flags to specify a password of at least six case-sensitive alphanumeric characters for a particular VNC Server mode and user. The password chosen is DES-encoded and stored as the value of the Password parameter in the specified configuration file:
-service
- VNC Server in Service Mode. Note elevated privileges are required.
The password is stored for the root user only in
/root/.vnc/config.d/vncserver-x11
. -user
- VNC Server in User Mode. The password is stored for the current user
only in
$HOME/.vnc/config.d/vncserver-x11
. -virtual
- VNC Server in Virtual Mode. The password is stored for the current
user only in
$HOME/.vnc/config.d/Xvnc
.
Run vncpasswd -file FILE
to nominate a different configuration file.
Depending on the file chosen, this might apply
the password system-wide (across all VNC Server modes, or for all
users), or lock VNC Server down using policy (so the password
cannot be changed by users). For example, nominate:
/etc/vnc/config.d/Xvnc
to apply the password to VNC Server in Virtual Mode for all users./etc/vnc/config.d/common.custom
to apply the password across all VNC Server modes, for all users./etc/vnc/policy.d/common
to apply the password across all VNC Server modes, for all users, and lock VNC Server down.
For a full list of available configuration files, visit https://www.realvnc.com/docs/configure-vnc.html#configure-vnc-files
Run vncpasswd -print
to not specify a password but rather print it to
the console in the correct obfuscated format for manual entry into
configuration files or policy template files.
Options¶
If you have a Professional or Enterprise subscription, run vncpasswd -type TYPE
to specify a password for a non-standard user, where TYPE is either:
- AdminPassword to specify a password for an administrative user able to bypass accept/reject prompts.
- ViewOnlyPassword to specify a password for a basic user able to observe but not interact.
- InputOnlyPassword to specify a password for a basic user able to interact but not observe.
- GuestPassword to specify a password for a guest user able to interact and observe once approval to connect has been acquired from an already-connected user.
This is not recommended, but if you wish to specify a password of less
than 6 characters, run vncpasswd -weakpwd
.
See also¶
vncserver-x11(1), vncserver-x11-serviced(1), vncserver-virtual(1), vncserver-virtuald(1), vncviewer(1)
Author¶
Copyright © 2002-2016 RealVNC Ltd.
RealVNC and VNC are trademarks of RealVNC Ltd and are protected by trademark registrations and/or pending trademark applications in the European Union, United States of America and other jurisdictions. Protected by UK patent 2481870; US patent 8760366; EU patent 2652951.