Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: https://forum.uvnc.com/viewtopic.php?t=37885
Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864

Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/ultravnc
- Mastodon: https://mastodon.social/@ultravnc
- Facebook: https://www.facebook.com/ultravnc1
- X/Twitter: https://x.com/ultravnc1
- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc

Encrypted connection doesn't work

Single Click discussions / bugs
Post Reply
honda4life
Posts: 2
Joined: 2009-09-06 19:35

Encrypted connection doesn't work

Post by honda4life »

Hello everyone,

I'm trying to use an encrypted connection, but it doesn 't work.

here is a snippet from my helpdesk.txt:

Code: Select all

[HOST]
Beveiligde verbinding
-plugin -connect 192.168.1.101:5500 -noregistry
I've included my rc4.key from my UltraVNC directory to the custom directory.

Note that the not secured connection works like a charm.

Finally when i'm closing the SC I ended with this message:

Code: Select all

Connection failed - Error reading Protocol Version

Possible causes:

- You've forgotten to select a DSMPlugin and the server uses a
DSMPlugin
During connection try, I see a horizontal white line at the top center of my screen, when clicked that, I get a message that vnc isn't responding (i can force it to close of wait).

When I'm opening the tray icon from the viewer the checkbox from the plugin is checked and the rc4.key is found.

I really don't know what's wrong, probably a noob issue.

Thanks
Last edited by honda4life on 2009-09-06 19:57, edited 1 time in total.
YY
200
200
Posts: 996
Joined: 2006-11-13 15:11

Re: Encrypted connection doesn't work

Post by YY »

Just a two points suggest to check:

1. Are you sure the DSMplugin using at the SC.exe and VNCviewer are the same? Different version are not compatible. The one provided with the present SingleClick online creator is 1.2.4.0,, and before that (about 2 month ago) it used 1.1.6

The latest UVNC installer bundles the 1.2.4.0, while previous version bundled 1.2.2.0

Also, if you are using 1.2.4.0 plugin, you should use it to create the key rather than using one generated with previous version.


2. If your listening viewer is running on Vista, try to copy and run the vncviewer.exe to a non-restricted area . The listening viewer may fail to create temporary file when inside these restricted folder (e.g. \Windows or \Program Files in Vista have restriction & protection by the OS) thus unable to use DSMplugin
Last edited by YY on 2009-09-07 02:46, edited 1 time in total.
honda4life
Posts: 2
Joined: 2009-09-06 19:35

Re: Encrypted connection doesn't work

Post by honda4life »

updated to latest version now, noticed the new MSRC4Plugin.dsm in VNC directory (old version was 122), created a new pair of key files with the new plugin, generated the SC with the new key, but still the same result

Program is running with administrative privileges, so write acces shouldn't be a problem I think.

I haven't restarted yet after update, probably this isn't the current issue.
royep
Posts: 4
Joined: 2009-08-25 13:50

Re: Encrypted connection doesn't work

Post by royep »

Hi,

try compiling through:
http://support1.uvnc.com/cgi-bin/upload4.pl
user: foo
pass: foobar
it uses the newer MSRC4Plugin.dsm version and should solve the compatibility issues between the versions.
Post Reply