You can use all functions of the system,
Uninstall and install software, test installed programs and
even delete or format the hard disk or system files...
As the title suggests, I will introduce you to a site where you can get free vps.
Please register to see the link Log in or register now.
On that screen, you can install VNC Viewer and putty to putty.
if you handle it there, you'll already have access with putty
VNC Viewer uses the way you do not want to come easy.