Hi all,
The "AuthHosts=" in the "ultravnc.ini" is no longer working as expected - can anyone help / verify?
For years I had in
ultravnc.ini
entry
AuthHosts=-:+"My External Fixed IP"
(i.e. I want to accept the connection from only one single IP address)
and that worked fine (AFAIK v1.3x) for years but when I installed the new v1.4.0.6 I suddenly got "Rejected" info when I tried to connect to my machine with VNC Server !
It is as if only first entry in the "AuthHosts=" is obeyed... very strange...
Many thanks for help in advance!
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
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Feedback is welcome
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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
2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130
2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!
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
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The "AuthHosts=" in the "ultravnc.ini" is no longer working as expected - can anyone help / verify?
- Rudi De Vos
- Admin & Developer

- Posts: 6986
- Joined: 2004-04-23 10:21
- Contact:
Re: The "AuthHosts=" in the "ultravnc.ini" is no longer working as expected - can anyone help / verify?
1.4.0.7 host filter fix
Please use viewtopic.php?t=37743
Please use viewtopic.php?t=37743
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Re: The "AuthHosts=" in the "ultravnc.ini" is no longer working as expected - can anyone help / verify?
Hi all,
Much obliged!!!
I will try it tomorrow morning the first thing...
Much obliged!!!
I will try it tomorrow morning the first thing...
Re: The "AuthHosts=" in the "ultravnc.ini" is no longer working as expected - can anyone help / verify?
Hi all,
"Your connection has beed rejected."
message with "ultravnc.ini" entry
AuthHosts=-:+"My Fixed External IP":
Can you please check / verify?
I have installed the v1.4.0.8 from the link you posted but, unfortunately I still get:
"Your connection has beed rejected."
message with "ultravnc.ini" entry
AuthHosts=-:+"My Fixed External IP":
Can you please check / verify?
Re: The "AuthHosts=" in the "ultravnc.ini" is no longer working as expected - can anyone help / verify?
Hi all,
Instead of full fixed IP which is not working the filtering of the 3 starting fileds did the trick (i.e. xxx.yyy.zzz of my "My Fixed External IP")!
AuthHosts=-:+xxx.yyy.zzz:
Instead of full fixed IP which is not working the filtering of the 3 starting fileds did the trick (i.e. xxx.yyy.zzz of my "My Fixed External IP")!
AuthHosts=-:+xxx.yyy.zzz:
- Rudi De Vos
- Admin & Developer

- Posts: 6986
- Joined: 2004-04-23 10:21
- Contact:
Re: The "AuthHosts=" in the "ultravnc.ini" is no longer working as expected - can anyone help / verify?
AuthHosts=-:+"My Fixed External IP": should work
tested with 127.0.0.1 and localhost
Will test it again with an external viewer
tested with 127.0.0.1 and localhost
Will test it again with an external viewer
UltraVNC links (join us on social networks):
- Website: https://uvnc.com/
- Forum: https://forum.uvnc.com/
- GitHub sourcecode: https://github.com/ultravnc/UltraVNC
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- Reddit community: https://www.reddit.com/r/ultravnc
- OpenHub: https://openhub.net/p/ultravnc
- uvnc2me: https://uvnc2me.com/
- 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/