KLUG Weekly Meeting Notes

Tuesday, August 30, 2005

 

AN INTRODUCTION TO VIRTUAL NETWORK COMPUTING (VNC)

CONNECTING ACROSS NETWORKS USING VNC AND SSH!

Presented by Bill Hollett

LOOK HERE FOR THE POSTING OF BILL’S SLIDES:
http://kalamazoolinux.org/presentations/

These tools will add a new dimension to your internet and network
computing functionality. Connectivity with plenty of security.
Bill Hollett’s presentation was slide-based and he approached
his subject as if the audience was in need of explanations and
definition at various levels. Sometimes the content of other KLUG
presentations assumes that you already have a broad knowledge
of the dynamic universe of Open Source/Linux implementation.
KLUG is fortunate to have people participating in the group with
various levels of skill and experience. Questions were handled
on-the-fly and he went into deeper explanations at several points
to make sure that everyone had understood his examples. We
saw how to implement VNC from many different network to PC
configurations.

Dirk Bartley was the Secure Shell (SSH) expert of the evening
with backup from Adam Williams. He assisted Bill in interpreting

what the SSH commands are and how the forwarding ports are set."

Bill had been learning and implementing VNC on his home and work
computers for only a short time when he sprained his ankle working
around the house. There he was, stranded on a couch at home, unable
to get up and move around without great pain. He had his PC’s all
loaded with free open source VNC server and viewer software from
RealVNC. He grabbed a small portable running Win95a that had
about 32 Mb of RAM. He connected to the web and launched a
browser and obtained a VNC viewer for this relic. From this small
portable he completed his projects that required he work with four
other PC’s attached to a network and/or connected to the internet.
It all worked. All the applications ran as expected regardless of
platform or connection. He was quick to utilize his new VNC skill.
If it had been a Win3.11 network connected to the internet?

VNC supports cross-platform use (Linux to Windows or Windows to
Linux). It also can be tunneled securely over a public network (like
the internet) using SSH. Bill had a big smile on his face through
most of his presentation. You could tell that he likes RealVNC!

"VNC (Virtual Network Computing) software makes it possible to view
and fully-interact with one computer from any other computer or mobile
device anywhere on the Internet. VNC software is cross-platform,
allowing remote control between different types of computer. For
ultimate simplicity, there is even a Java viewer, so that any desktop
can be controlled remotely from within a browser without having to
install software."

Real VNC - Virtual Network Computing
http://realvnc.com/

"The open source version of VNC has been freely available since 1998,
and more than 50 million copies of the software have been downloaded.
The software has also appeared on numerous magazine cover disks, and for
several years all popular versions of Linux have included VNC. It is in
active use by many millions in industry, commerce, education and at
home. Virtually all Fortune 500 companies use VNC, and installations of
VNC across thousands of workstations are commonplace."


You might want to explore TightVNC as it enables SSH tunneling and
has other features that you might utilize.
http://www.tightvnc.com/intro.html

Another option is exploring web-based VNC. This site employs VNC…
http://www.gotomypc.com

(12 Linux Enthusiasts Attending)



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