Hello,
I recently installed Hamachi, in combination with UltraVNC. However, I only intend to use this on my local network- for accessing computers on different floors, etc. I have not forwarded any ports on my router. Is this secure? I am using MS logon for VNC authentication.
Thanks
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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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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
Join us on social networks and share our announcements:
- Website: https://uvnc.com/
- GitHub: https://github.com/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
security question
Re: security question
And you use "private IPs" (192.168.x.x, 10.x.x.x, 172.16.x.x.) in your LAN?
If yes: Then no one from outside can access your LAN. However, Clients on your Hamachi VNC can access any other Hamachi Client on that Hamachi network segmentLocally you type in the LAN-IP (f. ex. 192.168.1.12), the network name of the PC (f. ex. PC12 - if your PC or router can resolve this network name to the IP 192.168.1.12) or the Hamachi IP (f. ex. 5.63.150.200) of any PC of your LAN to get access.
Keep port 5800 and 5900 on your router closed - no forwarding.
This should be save. Correct me when I'm wrong!
If yes: Then no one from outside can access your LAN. However, Clients on your Hamachi VNC can access any other Hamachi Client on that Hamachi network segmentLocally you type in the LAN-IP (f. ex. 192.168.1.12), the network name of the PC (f. ex. PC12 - if your PC or router can resolve this network name to the IP 192.168.1.12) or the Hamachi IP (f. ex. 5.63.150.200) of any PC of your LAN to get access.
Keep port 5800 and 5900 on your router closed - no forwarding.
This should be save. Correct me when I'm wrong!