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Set up Secure VNC server in OCI Compute instances

edited Nov 9, 2022 8:26AM in Linux

Applies to:

Oracle Cloud Infrastructure - Version N/A and later

Information in this document applies to any platform.


Goal

 Set up Secure VNC server in RHEL /Oracle Linux / CentOS using SSH tunnel


Solution

In this article, we will see how to setup secure VNC server using SSH tunnel in RHEL/Oracle Linux /CentOS based OCI instances.


Step-by-step instructions:

VNC protocol is un-encrypted. Even though the log in process has some encryption, it is possible to sniff VNC traffic and collect sensitive information. You can fully secure a VNC session by tunneling it via a SSH tunnel. Another advantage of tunneling VNC via SSH is that you do not need to open VNC ports – TCP 590X on your Subnet’s Security List. The existing rule for SSH traffic will do fine.

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