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Re: Is it possible to use VNC through masquerading firewall?



Hey all,

TightVNC offers some pretty drastic improvements in terms of bandwidth
usage

http://www.tightvnc.com/

Roger

On Sat, 15 Sep 2001, Vineet Kumar wrote:

> * Christian Schlettig (ceres@mail.isis.de) [010915 07:50]:
> > Hello group,
> >
> > the following scenario:
> >
> > INET --ADSL|-- LINUX -- INTERNAL LAN
> >                 1.1        1.x
> >
> > i'm using debian 2.2r3 with kernel 2.2.19 for
> > the linux router. The internal lan has one
> > linux clients and 5 win95 clients. the router
> > acts as a email server and www proxy no other
> > services are used yet. I've installed VNC on
> > the clients and would like to remote
> > administrate them if the users ask for it and
> > turn VNC on.
> >
> > My question is whether it is possible to
> > initiate a VNC Connection from the inet to one
> > specific client in the internal LAN. Can i
> > configure VNC to use different ports on the
> > clients and then portforward them to the
> > internal client?
> >
>
> I might also recommend that you tunnel VNC through ssh, especially when
> used over the Internet. Otherwise, any text you type is being sent
> cleartext and could be sniffed. SSH will give you the added benefit of
> data compression. Read the VNC README for a tip on which screen painting
> algorithm to use with this; I recall that VNC uses a very generous
> (slow) algorithm when connecting to localhost by default, because it
> assumes you have unlimited bandwidth. When you set up a tunnel, though,
> you'll need to connect to localhost and still use a network-friendly
> algorithm.
>
> Sorry if that was vague; I haven't used it in some time.
>
> --
> Vineet                                   http://www.anti-dmca.org
> Unauthorized use of this .sig may constitute violation of US law.
> echo Qba\'g gernq ba zr\!             |tr 'a-zA-Z' 'n-za-mN-ZA-M'
>



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