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VNC Viewer error : No Matching security types

We are trying to access a Ubuntu system over the remote desktop connectivity for a long hours. We can able to connect/access Remote desktop from Ubuntu to Ubuntu. But neither windows or any other VNC viewer from other OS. We needed to access Ubuntu Desktop remotely from any system.

How do I enable Remote Desktop Access

Remote-desktop

type 18 TLS security enforced.
type 2 VNC security not published by default

While I’m trying to access it from Windowsusing Vinc Viewer, I got the error “No Matching security types“. Same will get if I uses the latest VNC client application as well.

vnc-error

This error showing that Remote Desktop connectivity from Ubuntu is using some kind of encryption by default. That why we can communicate in between Ubuntu desktops over remote desktop and it will not support Non-SSL supported VNC client tool or that entryption wont support our client tool.

Problem

Ubuntu is using encryption while connecting Remote Desktop session. So normal VNC tool can not able to support it and shows connection failure.

Solution

Login to the current user session (GUI)and execute the command “settings set org.gnome.Vino require-encryption false”. After that VNC will work and get the access

🙂

Ubuntu-desktop

3 comments to VNC Viewer error : No Matching security types

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