Hey all,

I just contributed to the RealVNC team by purchasing a T-shirt, so I hope
somebody can give me a hand with this issue.

I run a Linux box at home with vncserver running on it, set for desktop
:1. It works beautifully. I can connect to the server using either the
Windows or Unix VNC clients from anywhere on the Internet. I can even
point my web browser to the server and it will load up the vncviewer
applet. This all works great even though my home server is behind a
firewall. (I first had to open ports 5801 and 5901, of course.)

Unfortunately, when I'm at work, I can't use the VNC client on my Windows
workstation. This is because our corporate network uses a proxy server
that only allows incoming and outgoing connections on standard ports (such
as port 80 for web browsing). My network admin won't open any other ports
because I don't use VNC for work-related stuff, just personal projects
when I'm on break.

I've been told that the VNC server can send and receive its RFB packets
through port 80, which presumably would allow the VNC client to go through
the proxy.
(http://www.realvnc.com/pipermail/vnc-list/2003-February/037556.html) I'm
not running a web server on my Linux box at home, so there shouldn't be
any problem having the server listen to port 80. In the morning, I start
up the VNC server like this:

vncserver -rfbport 80

No error messages are reported, so when I get to work, I run vncviewer.exe
on my Windows machine. Unfortunately, no matter what port setting I
provide, I always get the error "Failed to connect to server" after a few
moments. I've tried all the suggestions for port values given in the FAQ
(http://www.uk.research.att.com/vnc/faq.html#q54) and mailing list
archives
(http://www.realvnc.com/pipermail/vnc-list/2001-August/024415.html), but
nothing seems to work. I've also tried telnetting to my home server using
each of these ports, but I never get a response.

Interestingly, if I point my web browser to my home server (without any
port setting specified), I get back a web page containing this text:

RFB 003.003

So I know my server is running and listening. I just don't know how to get
the Windows VNC client to work right. I can install any additional
software on my server if necessary, and I'd have no problem connecting to
my home server using a Java applet and my web browser, if there's some way
to get that working instead. I could even hack around with the source code
for the server and client if I knew what patches were necessary.

Thanks for any advice!

Trevor Harmon
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