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

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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bruteforce hacking fix plz

Any features you would like to see in UltraVNC? Propose it here
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cabbie8675
Posts: 1
Joined: 2012-07-31 09:15

bruteforce hacking fix plz

Post by cabbie8675 »

Being bruteforce hacked terribly from brazil and lavatia.
need hacker prevention plz
Can someone please make a gui for authhosts and also set up some automatic ipaddress authhosts ban after failing so many times.(have count reset on successful logon)
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Rudi De Vos
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Posts: 6978
Joined: 2004-04-23 10:21
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Re: bruteforce hacking fix plz

Post by Rudi De Vos »

There is already a timeout after each bad password from the same ip address.
Time between each try increase.

If you use vnc to give support on a pc with some user, you can add the "required accept". Then the hacker always
get the refused by user answer.

Try to use another port the 5900, most hackers scans only that port for vnc access.
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3DZ
Posts: 2
Joined: 2012-05-11 11:45

Re: bruteforce hacking fix plz

Post by 3DZ »

There is already a timeout after each bad password from the same ip address.
Time between each try increase.
I infer from this that the timeout can be increased. Where is this setting changed?
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