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Install NX Server on Ubuntu

1. Open an terminal and enter:

Troubleshooting on Ubuntu:

Error message:

failed to load session gnome fallback

hint: enter your sudo password twice (hit enter also twice).

Installing XRDP on Ubuntu Server for RDP connection

1. Install the Ubuntu Desktop environment and a RDP Server:

 

2. Create a new user and add grant sudo rights:

 

3. Set users xsession configuration:

 

4. Now you can connect via rdp to your server.

SSH without a password

You can login with password or with certificates. To generate certificates use this commands and accept all questions with enter:

This will generate a public and private certificate pair under ~/.ssh/ 

Now you can authorise a user with the gernated public certificates on other machines. You only need to copy the content from the public certificates to the other remote systems in this file~/.ssh/authorized_keys

For this purpose there is a special ssh tool:

Without that tool you can do it this way: