there is more than one way to do that. one of them is to install a VNC server on your windows-based system, configure it (for login credentials), run the service and just connect to it from linux with a linux-based VNC client.
for start you can use:
as a VNC server on windows and "KRDC" or "realVNC" as your linux VNC client.
If you want to connect from Linux to Windows via SSH you can install OpenSSH on Windows (look at this for example ), or if you want to remote disktop from Linux, first activate the remote disktop in Windows, configure Firewall or stop firewall and the second step use the remote client service (rdesktop) to remote Windows from Linux.
I hope this can help you
As my partners said before, there are various utilities to connect by ssh to a windows server.
In my opinion, the easiest one is copssh . Is a small daemon who allows you to login in the windows server by ssh.
I use it to browse for the filesystem and to execute unix scripts from taks manteinance and monitoring
You can see it in https://www.itefix.no/i2/copssh