Revision as of 23:20, 3 February 2010 by Algotruneman (talk | contribs) (RDP typo fixed)



Retired teacher (junior high science, computer skills) and technology director
AB in Biology and MEd in Educational Leadership (both from Boston University)

Member of Massachusetts Computer Using Educators (20 years as board secretary) [1]

Facilitator for the FLOSS special interest group of MassCUE:


Tools for use in upcoming pages:

Images are clickable, wich displays the full-size image. You have to use the back-button of you browser to return.

Template:I18n/Language Navigation Bar

  • list preview test
  • second item of preview test

Image:Krfb.png|48px Krfb image

KRDC Desktop Sharing Client for the Remote User

Template:I18n/Language Navigation Bar

Krdc.png Use this tool to connect your computer to a the desktop of another computer to provide assistance or do work remotely
Screen Images are clickable, which displays the full-size image. You have to use the back-button of you browser to return.

Krdc is one of a pair of KDE programs (Krfb is the other) that let you share your desktop through the local network with another user, probably somebody like the tech downstairs who you want to help you figure out how to do something you are having trouble with. You can call the tech on the phone and be talking with her while she assists you. The tech can even "drive" your computer if you decide to let that happen.

KRDC is a client program. It must be matched by a server or "host" program that is running on another computer. In this explanation, we will use the terms:

  • guest for the machine and user that is remote who you want to invite
  • host for the machine and you as the one who is sharing your desktop

You will also need to refer to the Krfb Page to make complete sense of this explanation.

This explanation is, therefore, from the perspective of the technician who is going to work remotely as the "guest".

Steps to Connect

You will note that you, as a guest technician, can provide assistance to many different operating systems. You are not limited to KDE desktops.

  • Start Krdc (Kickoff button -> Applications -> Internet -> Krdc)
  • Type in the address of the host computer (VNC protocol)
    • Krfb(KDE3)-- (identify the screen number after the colon)
    • Krbf(KDE4)-- (identify the port after the colon)
    • Gnome--192l168.1.102 (the port number is assumed)
    • Windows(VNC)--to be tested
    • Windows(RDP)--to be tested
    • Macintosh(VNC)--to be tested
  • Type the password that the host requires
  • Adjust the screen to better fit (Session -> Scale remote screen...)
  • When your mouse is within the window limits from the host, you can control the remote computer if that ability was set at the host (recommended).

If you are not successfully connecting to the host computer and the host is running a firewall, the port for the VNC protocol must be opened on that computer. It may work out for the best if the technician does the initial setup of both computers, after which the host user just needs to click the appropriate sharing box when making the help call.

You can bookmark a connection in Krdc "guest" to save time with repeat tech help calls.

Krdc isn't the recommended way to administer a dedicated server because it is recommended that servers run without a GUI desktop. Server administrators are recommended to use command line and the secure SSH protocol.

This page was last edited on 16 June 2011, at 15:49. Content is available under Creative Commons License SA 4.0 unless otherwise noted.