For the price and setup of that - Terminal Server licenses may be in the
same range as well.  Not sure.

And if you do go with VMs, use Win 98 as it doesn't eat as much away
from the host.

/David.

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of K.S.
Bhaskar
Sent: Friday, September 24, 2004 2:12 PM
To: [EMAIL PROTECTED]
Subject: Re: [Hardhats-members] Vista without CPRS

Shaun --

Here is an alternative proposal.  On the VistA server machine, or better
yet, on another PC inside the server firewall, run VMWare.  For every
user that wants to run the CPRS GUI, fire up a Windows guest within
which the CPRS GUI will run.  This Windows guest will run a TightVNC
(http://tightvnc.com/) server.  The client will run a TightVNC client
(there are native VNC clients, clients in Java, clients that run in
browsers, clients for just about every operating system) which will
tunnel through the firewalls (and which can be carried over an ssh
connection).  VNC can also be made very secure.

One benefit of this is that the server session doesn't go away (unless
the server goes down).  So, if the network connection is lost, a client
can reconnect to the session.  A session can be left running while a
client changes from one location to another - simply terminating the
client, going to the new location, and starting a new client to connect
to the server will to the trick.

The down side is that the server will need a lot of memory, and some
decent CPU.  But computers are getting cheaper all the time, and it
doesn't need to be a high end machine or need high end IO - i.e.,
Walmart PCs will to the trick as long as they have enough RAM.

-- Bhaskar

On Fri, 2004-09-24 at 11:28, CS Wagner wrote:
> Our problem is that we have a firewall on our network where the Vista 
> server is.  The client side has a firewall also where CPRS is.  CPRS 
> requires a connection from the server to the client on a randomly 
> generated port.  To allow for that, we'd have to basically remove the 
> entire client-side firewall.  Sure, we can only ports 5,000 and up,
but 
> that's still a huge hole in the firewall.
> 
> We tried the VPN route, but that led to yet another issue.  The
server's 
> network does have VPN, but it is highly restricted.  There is a lot of

> paperwork involved in getting an account set up.  Once done, we'd have

> another problem - the client's computer won't be able to use the 
> client-side network anymore.  That means that they'd have to have a
CPRS 
> computer on VPN and a regular computer off the VPN for everything
else.
> 
> As for tunneling on SSH, that would be the #1 solution if CPRS ran
well 
> on Linux.  We could tunnel into the Vista server on port 22 and
display 
> the X-CPRS on the client's machine.  We could also upgrade CPRS easily

> by only upgrading it on the server and not going client to client.
But, 
> the major dawback is getting CPRS to run on Linux without paying out
so 
> much money that we'd be better of buying some other EMR system.
> 
>  -Shaun
> 
> Joseph Dal Molin wrote:
> 
> >What is the issue regarding your network security...it will be good
to
> >know should others have a similar setup?
> >
> >And dumb question...did you try setting up a VPN and tunneling...??
> >
> >Joseph
> >
> >On Fri, 2004-09-24 at 10:32, CS Wagner wrote:
> >  
> >
> >>It is becoming clear that we cannot use CPRS with our network
security.  
> >>Is it possible to effectively use Vista without CPRS?  I can easily
set 
> >>up SSH accounts for each user so that gtm starts when the login.  I 
> >>assume that setting the primary menu in Vista will change what they
see 
> >>once gtm starts.  I just don't know what menus to give the different

> >>people (nurses, providers, clerks...).  I also haven't found user's 
> >>documentation.  Everything is directed toward the 
> >>administrator/programmer, not the average user.  So, I'm afraid I'll

> >>have to set aside a lot of time to write documentation while I'm
trying 
> >>to learn what to do.
> >>
> >>What I'm trying to get done right now:
> >> * Have a provider SSH in and immediately get to a patient selection

> >>screen where he can view/edit patient info
> >> * Give nurses the same menu - is there any function for a nurse to 
> >>hand-off the patient to a provider without having the nurse log off
and 
> >>having the provider log back in and select the same patient?
> >> * Have clerks SSH in and immediately get to a screen to add
patients or 
> >>schedule visits for existing patients.
> >>
> >>If I can get to that point, my history has included years of making 
> >>graphical front-ends for telnet/ssh menus (written in Cobol and/or 
> >>Ada).  I will be able to do the same for this without the loop-back 
> >>security headache of CPRS.
> >>
> >> -Shaun
> >>
> >>
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