After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome

2026-03-11: CVE-2026-3787 Clarification: https://forum.uvnc.com/viewtopic.php?t=38155

2025-12-14: 1.7.1.X-dev release builds need tests and feedback: https://forum.uvnc.com/viewtopic.php?t=38134

2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page

2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078

2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864

Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome

Disable has been setup without Authentication

Here you will find help for frequently asked questions as well as for your specific question
Post Reply
Simple_Mind
Posts: 3
Joined: 2022-02-27 09:43

Disable has been setup without Authentication

Post by Simple_Mind »

Hello,
i'm using Ultravnc only for my PCs at home.
I configured the vnc Server without Password.

When I use vnc viewer I get the Message:
"The Server has been setup without Authentication, do you trust this Server?"
Is there a way to disable this Message since I trust all my PCS ;-) ?
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6992
Joined: 2004-04-23 10:21
Contact:

Re: Disable has been setup without Authentication

Post by Rudi De Vos »

viewtopic.php?p=110487#p110487

Server option commandline
AllowUntrustedServers
ultravnc.ini
AllowUntrustedServers = 1
Gui
tab security
uncheck
[_] only servers with password
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/UltraVNC
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- 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
- uvnc2me: https://uvnc2me.com/
Simple_Mind
Posts: 3
Joined: 2022-02-27 09:43

Re: Disable has been setup without Authentication

Post by Simple_Mind »

Hello, tried the three solutions without success

Server option commandline
AllowUntrustedServers

How do I set a commandline? Tried to put it behind the link to vncviewer.
Vncviewer started to look for a Server "AllowUntrustedServers"

ultravnc.ini
AllowUntrustedServers = 1
Put the Line in the .ini and in the options.vnc without Change

Gui
tab security
uncheck
[_] only servers with password

I have Version 1.3.6. There is no option as mentioned above.
"Only allow encrypted Servers" is unchecked.
User avatar
Rudi De Vos
Admin & Developer
Admin & Developer
Posts: 6992
Joined: 2004-04-23 10:21
Contact:

Re: Disable has been setup without Authentication

Post by Rudi De Vos »

The link go to the 1.3.7 development build.
It wil be in the next update (Rel 1.3.8 ) or in the development build, see the provided link.
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/UltraVNC
- Mastodon: https://mastodon.social/@ultravnc
- Bluesky/AT Protocol: https://bsky.app/profile/ultravnc.bsky.social
- 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
- uvnc2me: https://uvnc2me.com/
Simple_Mind
Posts: 3
Joined: 2022-02-27 09:43

Re: Disable has been setup without Authentication

Post by Simple_Mind »

Oh no!
Overlooked the Version Number :oops:
Now its working.
Thank you.
Post Reply