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Paranoid Penguin - Secured Remote Desktop/Application Sessions

Issue 173

From Issue #173
September 2008

Sep 01, 2008  By Mick Bauer
 in
Run graphical applications from afar, securely.
Conclusion

Thus ends my crash course on how to control graphical applications over networks. I hope my examples of both techniques, SSH with X forwarding and VNC over SSH, help you get started with whatever particular distribution and software packages you prefer. Be safe!

Resources

The Cygwin/X (information about Cygwin's free X server for Microsoft Windows): x.cygwin.com.

Tichondrius' HOWTO for setting up VNC with resumable sessions—Ubuntu-centric, but mostly applicable to other distributions: ubuntuforums.org/showthread.php?t=122402.

Wikipedia's VNC article, which may be helpful in making sense of the different flavors of VNC: en.wikipedia.org/wiki/Vnc.

Mick Bauer (darth.elmo@wiremonkeys.org) is Network Security Architect for one of the US's largest banks. He is the author of the O'Reilly book Linux Server Security, 2nd edition (formerly called Building Secure Servers With Linux), an occasional presenter at information security conferences and composer of the “Network Engineering Polka”.

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Problem with conection

Sherlock_Brett's picture
Submitted by Sherlock_Brett (not verified) on Fri, 04/10/2009 - 08:56.

Thanks for this post, since it's what I needed. But I have a problem when I try the last step of the tutorial (I configured the rest exactly as described here): when I'm filling the fields as in Fig. 4 (with the same port), I receive this message (in Spanish, sorry): "Se cerró la conexión con el equipo «localhost:20226».", which means something like "Conection to localhost:20226 was closed." I don't know what can it be. Maybe the point is that I'm trying to conect Ubuntu 8.04 to 8.10 ¿? (BTW, I'm also using the "ufw" firewall and I opened 20226 ports in both computers, TCP and UDP)

Anyway, thank you in advance for any kind of help.

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