UltraVNC

My apologies for my belated reply; I had been away from the forum for a while.

To address the security concerns, you are correct that if the server does not have a client authentication public key, then the server does not advertise that it needs client authentication from the viewer.

The general ...

I believe before the .9 versions support for certain things was notified in a nonstandard way using the protocol version. RFB3.8 compliance had to get rid of that. If you use a .9 or higher server then things should be fine.

I had been meaning to clean up some of these but it is tricky sometimes dealing with the localization of the strings. The German version at least is very out of date.

Are these still intended to be maintained?

I am honestly uneducated regarding the localization efforts of uvnc, and as such I have ...

Yeah, basically compressing in an XZ stream using LZMA2. The parameters are tuned for the kind of data and network patterns VNC uses.

More CPU and RAM but much better compression. This works well for me since bandwidth is usually the limiting factor rather than server resources.

I'll probably have ...

Two viewers, same server, updating twice a second to eliminate CPU differences on bandwidth, running through a repeater.

I'll explain more once I have time, but it's much more exciting to just leave this here.


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winvnc 1.0.9.3.2 direct reverse connect to vncviewer 1.0.9.3.2
weird "Show status windows Information"
Connected (SecureVNCPlugin-v2.3.0.0)
In progress (no encryption)

Why in progess if there no encryption ?
what is mean ? i miss something ?

Things like this are why I want to drop support ...

Those of you using the 1.0.9.x betas are the ones who will benefit from my changes most, since I've basically abandoned the inflexible legacy interface for the integrated interface developed initially for my special 1.0.8.2 builds and merged into the 1.0.9.x releases.

Notable changes are faster ...

(I also updated the sticky topic, but it is best to localize discussion in a single thread here if anyone runs into issues or has other suggestions, feedback, etc.)

SecureVNC DSM Plugin
Simple, effective, secure VNC sessions
For 32- and 64-bit Windows 2000, Windows XP, Window Vista, Windows 7 ...

This is definitely resolved by the way, in case there was any doubt.

Just change the password in the vnc server settings.

from beta forum:

My ping times are being very erratic; anyone want to help subjectively test something? I'm trying to test this improvement to the responsiveness of the screen updates sent to the VNC viewer. You can enable it after connecting in the options dialog: the 'Preemptive Updates ...

Wait, what is this ColtB45's simple CAD-with-UAC-Disabled patch? Can you link me?

Any idea regarding how the single UAC elevation (DIS_UAC) option works? Forum posts or etc?

I am currently using the official builds of uvnc for our sc distribution. All in all it comes to about a megabyte. It's a bit hefty, but not so much these days. I also have a tiny dropper app that simply ...

The handshake has to be 'unencrypted' because the keys have not yet been established. However the handshake itself consists of encrypted data using RSA and AES. The passphrase is used, along with a salt, to generate the AES key that is used to protect the handshake. So don't worry; the passphrase is ...

Please get v2.2.4.0 from the website. This fixes the client auth
issue on servers, as well as a few minor changes. Note the bug only affected the experimental interface, not the classic one. However with this resolved I would consider the experimental interface complete.

The encrypted communication begins after the initial handshake, at least in terms of the status window. The handshake itself is encrypted. But the data stream between the server and client is not modified until the handshake has succeeded.

Is everything working properly now? Please note that only ...

I will be looking into this as well.

Please send me the source of an app that has the issue.

adam.walling@gmail.com

Please get the new winvnc.exe and/or winvnc_64.exe from the website and give it a shot. You may have to restart the service in order for the new config to take effect but it should save properly now.

The binaries are updated but I have not had time to update the text of the website yet. Â

Let me ...

Thanks for your reply. I have renamed it but as you have said it is not possible with the new SC.
Could somebody please fix this? The old SC isn't really usable with Vista oder Windows 7 and SecureVNC especially with the certificates is perfect for SC because of the asymmetric encrypting approach ...

Scratch all this; I figured it out, based on a hunch after the seemingly unrelated SC reply. The configuration is not working properly when running as a service. I'll figure out what is going on and post new 'experimental' server builds and update subversion as soon as possible.

A temporary ...

supercoe wrote:I'm a fan of unofficial builds.

Well then, check it out:

http://adamwalling.com/SecureVNC

Make sure you get the new plugin build, too.

That status only shows the currently loaded DSM plugin, but does not actually reflect the current encryption status.

My new changes to the plugin architecture provide a better way of handling this. You'll be able to see exactly what encryption parameters are being used.

I am doing my best to get ...

FYI, there is a new version in the works that integrates deeper into UltraVNC which makes things much more stable and also provides much better feedback for debugging some of these issues.

As far as I know, the old SC is deprecated, but I've been making my own just based off of the official builds ...

Pluton interface! Awesome. I intended to say plugin, but once again I was thwarted by auto-spellcheck on a smart phone.

Anyway, here you go:

SecureVNC Plugin v2.2.0.0

x86 / 32-bit - SecureVNCPlugin.dsm
x64 / 64-bit - SecureVNCPlugin64.dsm

* Fixes crash due to UltraVNC host attempting to ...

Thank you for all your help. I found the issue to be due to an attempt to encrypt data and send a packet in UltraVNC where the socket is closed. Normally this is not a problem, but was causing a crash since the pluton interface was released when the socket was closed. Regardless, I prevented the ...

Thanks for all the info everyone. I shall look into this as soon as I get a chance. I'll post any updates here.

For the most part, a lot of problems come from the plugin architecture itself. It has been used for far more than it's original intention. However I will definitely take a look and try to patch up these issues regardless of where the bug exists.

I'll have to look into it. A lot of issues seem to come from limitations in the original DSM architecture. I am working on a new version that has more integration with VNC rather than simply modifying the data stream to include the handshake. H

Yeah it works fine over the repeater. Also the 32 bit version of uvnc and the plugin will work out on x64 systems just fine; that is how we do it.

I've been terribly busy, sorry. But I'll see if I can figure out what is going on soon. Also I remember seeing an issue posted somewhere regarding autoreconnect not working with the dsm plugins; my hunch is that the state is not being reset so the handshake is not occurring. I'll look at that too. I ...