OK, now I think I am following you. I wasn't thinking
of port forwarding as tunneling. Sorry. I think you
would have to do that, as someone wrote that the RPC
broker communications are in clear-text. But right
now I don't know how to do port forwarding with SSH.
Can PuTTY do this?
Kevin
--- Nancy Anthracite <[EMAIL PROTECTED]> wrote:
> Yes, I have done that - put the server out in the
> DMZ and had someone connect
> CPRS to it, but I did not consider what I did to be
> secure. However, with
> port forwarding (tunneling), and private key public
> key authentication, I
> think it could be made secure. I think what you have
> done to CPRS combined
> with port forwarding could solve the problem that
> Shaun Wagner had with the
> rural hospitals that he was so frustrated with when
> the hospitals would not
> support his use of CPRS.
>
> On Saturday 12 February 2005 09:12 am, Kevin
> Toppenberg wrote:
> > Nancy,
> >
> > I'm still not completely following you here. I
> think
> > you are saying that you want to set up one server
> that
> > everyone could connect to, so we could colaborate.
> >
> > The only need for port forwarding would be if the
> > server is behind a firewall. But one could also
> make
> > the server secure (i.e. shut down all insecure
> ports),
> > and then specify to the firewall that this server
> is
> > the DMZ server. All unexpected traffic would be
> sent
> > to the server.
> >
> > I'm wondering if we are talking about the same
> thing
> > when you use the term 'port forwarding'.
> >
> > Kevin
> >
> > --- Nancy Anthracite <[EMAIL PROTECTED]>
> wrote:
> > > Just speculating on remote connections securely,
> > > using open source resources,
> > > over an Internet connection. I think port
> > > forwarding would work, but for
> > > that, you need a fixed port, so I am wondering
> about
> > > whether or not there is
> > > a way to do it without having to fix up and
> > > recompile CPRSChart every time a
> > > new one is released.
> > >
> > > Do you remember the post I passed on from Joel
> Ivey
> > > around Dec 21 that made it sound as if that port
> > > issue was going to be
> > > addressed?
> > >
> > > ************************************
> > > Subject: Re: CPRS and a single port
> > >
> > > > If it is not too complicated or confidential
> to
> > >
> > > explain, could you give me
> > >
> > > >an overview of your solution?
> > >
> > > None of our work, as far as I am concerned is
> > > confidential. We release all
> > > of our source code and appreciate any feedback
> as
> > > well.
> > >
> > > The solution that we chose was to use a UCX-type
> > > listener on the server (on
> > > VAX and I believe GT.M) that does not require a
> > > callback and is similar to
> > > the type of connection made with telnet. This
> and
> > > the use of different
> > > initial headers ( {XWB} vs [XWB] (new style) vs
> > > <XWB> (M2M broker) ) also
> > > provides the ability to differentiate between
> the
> > > old style connection and
> > > the new style so that some new parameter types
> could
> > > be added for data
> > > transfer (e.g., a global list in addition to a
> > > list). On NT, I believe the
> > > connection as it is made spawns off a new
> listener,
> > > so that it does not have
> > > to do a callback as well.
> > > ****************************
> > >
> > > Well, I thought maybe this addressed it. The
> > > trouble is, I did not entirely
> > > understand Joel's answer to my question and I do
> not
> > > understand exactly what
> > > this patch does either.
> > >
> > > If we could securely connect using port
> forwarding
> > > to a server and have lots
> > > of people work on configuring VistA and then
> > > checking out the results with
> > > CPRS and all, it might improve our ability to
> move
> > > along Open Source
> > > development efforts.
> > >
> > > On Friday 11 February 2005 09:52 pm, Kevin
> > >
> > > Toppenberg wrote:
> > > > Nancy,
> > > >
> > > > I'm too lazy to read the documentation right
> now.
> > >
> > > But
> > >
> > > > I will tell you that I'm pretty sure that the
> > >
> > > client
> > >
> > > > specifies which port the server is to call
> back
> > >
> > > on.
> > >
> > > > So I don't know that a server patch would fix
> > >
> > > that.
> > >
> > > > What is your motivation in this issue? What
> > >
> > > problem
> > >
> > > > are you working on?
> > > >
> > > > Kevin
> > > >
> > > > --- Nancy Anthracite <[EMAIL PROTECTED]>
> > >
> > > wrote:
> > > > > Is this patch the patch to allow connections
> on
> > >
> > > a
> > >
> > > > > limited number of ports? I
> > > > > can't quite follow all of it, so I would
> like a
> > >
> > > guru
> > >
> > > > > to explain it in a way I
> > > > > can follow, please - i.e., dumb it down big
> > >
> > > time,
> > >
> > > > > please. The documentation
> > > > > is in the RPC Broker section of the VDL.
> > > > > --
> > > > > Nancy Anthracite
> >
> >
>
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