"Joseph A. Knapka" wrote:
>
> Harmen van der Wal wrote:
> >
<...>
> > Well, I'm no expert on this, but I've been planning to look into this
> > for a while now, and maybe build the ideal firewall Java viewer;-) I
> > guess the techiniques are pretty standard.
> >
> > This discusses them in some detail, and has the Java-utils ready made:
> > http://www.mokabyte.it/2000/06/firewallutil.htm
>
> This looks very easy. It seems to imply that once the client and
> the server have exchanged a POST and response with no content-length
> specified, they can carry on their RFB conversation without
> interference from the proxy, provided the same connection
> is used. I will look at adding support for this to my server
> patches, once I'm sure I understand it.
That would be "Full-duplex Firewall Tunneling with Low Overhead". What
worries me about that, is that "simulative multiplexed communication" by
using HTTP/1.0's GET or POST operator, seems to be the only way for
applets to go. If I read http://www.mokabyte.it/2000/06/firewallutil.htm
correctly.
The latter method is more complicated and has a much bigger overhead:-(
>
> > I remember there's also some coding examples on Suns Java site, on the
> > subject of thread pools, if I'm not mistaken. I'd have to look it up.
> > I don't think we want Java on the server-side though.
>
> Possibly the author of the Java VNC server package would like
> to comment (jVNC? VNCj?).
No disrespect intended;-)
>
> > Also check out:
> > http://www.nocrew.org/software/httptunnel.html
> >
> > Maybe we, and Jonathan? can collaborate on this...
> >
>
> That sounds like a good idea. I think I can handle the Win
> and X servers :-) It may also make sense to add HTTP tunneling
> to the native viewers, since the Java viewer is very noticably
> slower.
I will start working on the Java viewer and report back when I have
something.
I'll start with checking if I really need simulative multiplexed
communication, and if I do, see if I can hook it up with existing
(server side) http tunnel tools.
So some of you people out there may want to tell me what http tunneling
stuff you use, besides http://www.nocrew.org/software/httptunnel.html,
off course.
--
Harmen
Firewall VNC Client: http://www.workspot.net/~harmen/vnc/readme.html
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