The problem
I have a Windows machine in my local network and I want to connect to it via RDP from my Linux machine. For this I use remmina
which is a nice RDP client. When not using a VPN, I can connect to the Windows machine without any problems. But when I use a VPN, I cannot connect to the Windows machine anymore.
The solution
The solution was to allow RDO WS and WSS in the Windows firewall. Those rules are usually disabled by default. After enabling them, I can connect to the Windows machine via RDP even when using a VPN.
Reference for the ports:
- WS: 3387
- WS-Secure: 3391
Open challenge after somw time, I cannot connect through VPN my favorite VPN (tailscale) but through OpenVPN it works. I have to investigate this further.