Update: UltraVNC 1.4.3.6 and UltraVNC SC 1.4.3.6: viewtopic.php?t=37885
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Important: Please update to latest version before to create a reply, a topic or an issue: 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
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- Reddit community: https://www.reddit.com/r/ultravnc
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How to disable password (or have a blank one)?
How to disable password (or have a blank one)?
I can't disable the password or make it blank.
I know, I know... we should ALWAYS use a password, but I have a specific application where I need to be able to use JavaViewer and have a blank password.
Any thoughts?
Thanks!
-Patrick
I know, I know... we should ALWAYS use a password, but I have a specific application where I need to be able to use JavaViewer and have a blank password.
Any thoughts?
Thanks!
-Patrick
Re: How to disable password (or have a blank one)?
UltraVNC 1.0.9.6.1 (built 20110518)
OS Win: xp home + vista business + 7 home
only experienced user, not developer
OS Win: xp home + vista business + 7 home
only experienced user, not developer
Re: How to disable password (or have a blank one)?
I know about RealVNC, but I want UltraVNC (free, open source, better compression, file transfer and chat).
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Re: How to disable password (or have a blank one)?
UltraVNC is based on RealVNC
Re: How to disable password (or have a blank one)?
on the orginal realvnc page is only the regkey "AuthRequired"=dword:00000000 set.
AuthRequired
By default, all WinVNC servers will not accept incoming connections unless the server has had its password field set to a non-null value. This restriction was placed to ensure that misconfigured servers would not open security loopholes without the user realising. If a server is only to be used on a secure LAN, however, it may be desirable to forego such checking and allow machines to have a null password. Setting this registry value to zero will disable null-password checking by WinVNC. Local machine-specific setting.
Is a Password key at HKEY_LOCAL_MACHINE\SOFTWARE\ORL\WinVNC3\Default needed?
At Real VNC 3.3.7 i had to set a blank password key. then it works.
But at Ultra VNC 102 i get the WinVNC Error
Warning: This Maschine has been preconfigured to allow unt-authticated connections. to be accepted and to prevent user from enabeling authentication.
What can i do to fix it? bthx
AuthRequired
By default, all WinVNC servers will not accept incoming connections unless the server has had its password field set to a non-null value. This restriction was placed to ensure that misconfigured servers would not open security loopholes without the user realising. If a server is only to be used on a secure LAN, however, it may be desirable to forego such checking and allow machines to have a null password. Setting this registry value to zero will disable null-password checking by WinVNC. Local machine-specific setting.
Is a Password key at HKEY_LOCAL_MACHINE\SOFTWARE\ORL\WinVNC3\Default needed?
At Real VNC 3.3.7 i had to set a blank password key. then it works.
But at Ultra VNC 102 i get the WinVNC Error
Warning: This Maschine has been preconfigured to allow unt-authticated connections. to be accepted and to prevent user from enabeling authentication.
What can i do to fix it? bthx
Ultra VNC 1.02 EN stabile | WIN XP PRO DE - EN SP2 | Kubuntu Linux 8.04 | Debian ETCH | Windows 2008 Enterprise Server testing
Re: How to disable password (or have a blank one)?
AuthRequired
you need to add the key and set the value
then reboot
then set password, after the password is ignored.
you need to add the key and set the value
then reboot
then set password, after the password is ignored.
UltraVNC 1.0.9.6.1 (built 20110518)
OS Win: xp home + vista business + 7 home
only experienced user, not developer
OS Win: xp home + vista business + 7 home
only experienced user, not developer
Re: How to disable password (or have a blank one)?
thx but that doesn´t work.
Password Auth is disabled but the Errormsg, at every Windows Startup exits always.
Warning: This Maschine has been preconfigured to allow unt-authticated connections. to be accepted and to prevent user from enabeling authentication.
;-(
Can i get this Warning Disabled or only removed with compiling my own uvnc?
One alternative could be to set a password an send it per batch parameter like.
"C:\Programm Files\ultra vnc\UltraVNC-Viewer-102\vncviewer.exe -password yourpassword"
(VNC viewer passwortdparameter)
Password Auth is disabled but the Errormsg, at every Windows Startup exits always.
Warning: This Maschine has been preconfigured to allow unt-authticated connections. to be accepted and to prevent user from enabeling authentication.
;-(
Can i get this Warning Disabled or only removed with compiling my own uvnc?
One alternative could be to set a password an send it per batch parameter like.
"C:\Programm Files\ultra vnc\UltraVNC-Viewer-102\vncviewer.exe -password yourpassword"
(VNC viewer passwortdparameter)
Ultra VNC 1.02 EN stabile | WIN XP PRO DE - EN SP2 | Kubuntu Linux 8.04 | Debian ETCH | Windows 2008 Enterprise Server testing
Re: How to disable password (or have a blank one)?
This message is produced most likely due to the enable of "Forbid user to close down WinVNC"el_toro wrote:Password Auth is disabled but the Errormsg, at every Windows Startup exits always.
Warning: This Maschine has been preconfigured to allow unt-authticated connections. to be accepted and to prevent user from enabeling authentication.
Enable this option with an Null password will trigger this warning.
Re: How to disable password (or have a blank one)?
hi thx for help but doesn´t work i tried this days before.
Ultra VNC 1.02 EN stabile | WIN XP PRO DE - EN SP2 | Kubuntu Linux 8.04 | Debian ETCH | Windows 2008 Enterprise Server testing
Re: How to disable password (or have a blank one)?
Oh! That's strange.
I also heard a case of using "AuthRequired" & checking "Disable client options in tray icon menu" option that produced the said message. Did you have this option checked? Or have the "Disable Tray Icon" checked?
But in my test, this is the ONLY condition (using the "AuthRequired=0" key and enable "Forbid user to close down WinVNC") that can produce the same error message you received.
I also heard a case of using "AuthRequired" & checking "Disable client options in tray icon menu" option that produced the said message. Did you have this option checked? Or have the "Disable Tray Icon" checked?
But in my test, this is the ONLY condition (using the "AuthRequired=0" key and enable "Forbid user to close down WinVNC") that can produce the same error message you received.
Re: How to disable password (or have a blank one)?
restart windows
UltraVNC 1.0.9.6.1 (built 20110518)
OS Win: xp home + vista business + 7 home
only experienced user, not developer
OS Win: xp home + vista business + 7 home
only experienced user, not developer
Re: How to disable password (or have a blank one)?
thx redge but aber restart don´t work
Ultra VNC 1.02 EN stabile | WIN XP PRO DE - EN SP2 | Kubuntu Linux 8.04 | Debian ETCH | Windows 2008 Enterprise Server testing
Re: How to disable password (or have a blank one)?
1. Go to the UltraVNC Directory
2. open ultravnc.ini
3. add the value "AuthRequired=0"
4. save
5. set a blank password in Ultra VNC's Admin Properties
2. open ultravnc.ini
3. add the value "AuthRequired=0"
4. save
5. set a blank password in Ultra VNC's Admin Properties