How to test RDP credentials in command line without X server installed?

Question

I've been asked to test from time to time some RDP credentials, and it must be done through a linux server.

Is there any way to test some RDP credentials in command line, without a X11 server ?

Solution 1

xfreerdp is an x11 client. You could try to monitor TCP 3389 if you don't want the required x11 parts.

https://support.microsoft.com/en-us/help/187628/using-telnet-to-test-port-3389-functionality

Solution 2

Did some tests and research on my side, it can be done with freerdp, with the following command line :

xfreerdp --ignore-certificate --authonly -u user -p pass host

Comments

[SBO]

Only testing the port is not enough, I need to test the credentials.

[JokinAU]

Thanks for the info, I just needed to similarly test config through firewalls, credentials... so I used your tips and I managed to use it with: xfreerdp /cert-ignore /auth-only /d:microsoft.com /u:bgates /p:Melinda4Ever /v:remotes.microsoft.com /port:3390