Public bug reported:

Since a recent update, it is impossible to connect to my Ubuntu box
using VNC from a Windows machine unless I disable encryption on the vino
server.

I tested up-to-date tightVNC client and TigerVNC client on the Windows
machine, with the same result. As soon I try to connect, I receive the
following error:

[ 5872/ 6448] 2014-01-20 12:11:18:247   List of security type is read
[ 5872/ 6448] 2014-01-20 12:11:18:247 : Security Types received (1): Unknown 
type (18)
[ 5872/ 6448] 2014-01-20 12:11:18:247   Selecting auth-handler
[ 5872/ 6448] 2014-01-20 12:11:18:247 + RemoteViewerCore. Exception: No 
security types supported. Server sent security types, but we do not support any 
of their.

So it seems that the update changed the security type of vino to a new
one. I searched for a way to go back to the old one (until the clients
catches up) with no avail.

A solution is disabling the encryption completely, by

gsettings set org.gnome.Vino require-encryption false

...but this is subotpimal. Is there a way to switch the encryption back
to the old one?

** Affects: vino
     Importance: Unknown
         Status: Unknown

** Affects: vino (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- VNC accessible for WIndows machine only with encryption disabled
+ VNC accessible for Windows machines only with encryption disabled

** Bug watch added: Red Hat Bugzilla #981984
   https://bugzilla.redhat.com/show_bug.cgi?id=981984

** Also affects: vino via
   https://bugzilla.redhat.com/show_bug.cgi?id=981984
   Importance: Unknown
       Status: Unknown

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https://bugs.launchpad.net/bugs/1281250

Title:
  VNC accessible for Windows machines only with encryption disabled

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