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Regarding Terminal service protocols

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Valued Contributor

Regarding Terminal service protocols

Hi All,

I want to know the details and difference between ICA, RDP, RFB and X protolcols.

whar are the OSs these protocols will support?

Thanks & regards,
Igor Karasik
Honored Contributor

Re: Regarding Terminal service protocols

ICA - protocol used by Citrix for windows terminal servers
RDP - protocol used by Microsoft for windows terminal servers
RDP is pretty close to ICA, Microsoft buy this technology from Citrix many years ago.
(See as well)
RDP and ICA have Linux/Unix clients (
RFB - RFB (remote framebuffer) is a simple protocol for remote access to graphical user
interfaces. Because it works at the framebuffer level it is applicable to all windowing systems and applications, including X11, Windows and Macintosh. RFB is the prototol used in VNC (Virtual Network Computing).
And X - used in Linux/Unix systems.
It is hard to compare RFB and X to ICA/RDP - it is just different.
Chandan Kumar_1
Honored Contributor

Re: Regarding Terminal service protocols

Hi Vel,

ICA Protocol:

The ICA protocol is used in both WinFrame and MetaFrame environments, and under the new product versions (1.8), WinFrame and MetaFrame have comparable features.

RDP Protocol:

RFB Protocol:

X Protocol:

Hope this helps you!
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