Mark,

 

I believe your explanation along with Emmitts' has helped me understand
what is happening.

Now I know why sometimes the "screen display" when first connecting
sometimes comes up in "waves".

I am using remote access so, as you said, the work is all being done on
site and I just get the results.

This has all been very informative. 

Of course, I still would not want to have to set one up myself.

This semi-old dog has learned some new tricks but I am not sure about
learning the Internet.

 

James Belisle

________________________________

From: [email protected] [mailto:[email protected]] On Behalf Of Mark
Lindner
Sent: Monday, November 22, 2010 3:54 PM
To: RBASE-L Mailing List
Subject: [RBASE-L] - Re: Off topic

 

The question is really where is the data be processed.

 

If you use a straight VPN, the network thinks your computer is on the
network but on a very long and normally very slow cable.

When you do a query, all of the dataset is sent to your workstation over
that slow link, and then is processed at your station.

 

When you do a VPN and use remote access, the processing is done on the
local net on the machine you remote into or citrix server etc  and the
only thing that is sent to your desktop outside the office is the screen
display, and sound if any.  When you type on a remote desktop the slow
link carries the keystrokes to the local computer to execute.  Then the
office desktop/remote server executes the query at the office over a
faster internal link, and transmits the screen info only to you on your
slower vpn link.

 

In both examples the vpn gives you secure access, but without the remote
desktop the data has to travel to you.  With the remote the data stays
on the local network and the screens and keystrokes are all that travels
over the slow link.

 

Even if you have a fast internet connection it may be a 10-15mb speed
where a slow desktop these days would be 100mb, or even 1gb.  You won't
be able to match that on a vpn unless you spend big $$$$$.

 

 

 

 

Mark Lindner

Lindner & Associates PC

254 Second Ave

Needham MA  02494

PO Box 920435

Needham MA  02492 0005

781 247 1100  781 247 7900

Fax 781 247 7905

EFAX 857 366 9691

Toll Free   888 658 4269 

Direct 781 247 1160,  781 247 7902

 

 

        -----Original Message-----
        From: [email protected] [mailto:[email protected]] On Behalf Of
Jim Belisle
        Sent: Monday, November 22, 2010 4:42 PM
        To: RBASE-L Mailing List
        Subject: [RBASE-L] - Re: Off topic

        Emmitt,

         

        I will have to ask the IT people we contract with since these
type of connects are foreign to me (except I use them).

        The discussion has just got my interest up as to what is
actually happening when I connect.

        I am sure even if they explain it to me, it will take some
studying on my part to understand it all.

        I have enough just to understand what I am doing in RBASE
without all that is happening through the Internet connection.

        All I know is that it has been working for years. Maybe we have
some really good IT company!

         

        James Belisle

        
________________________________


        From: [email protected] [mailto:[email protected]] On Behalf Of
Emmitt Dove
        Sent: Monday, November 22, 2010 3:34 PM
        To: RBASE-L Mailing List
        Subject: [RBASE-L] - Re: Off topic

         

        Jim,

         

        The question to answer is, "Where is the code that is accessing
the database actually executing?"

         

        Emmitt Dove

        Converting Systems Architect

        Evergreen Packaging, Inc.

        [email protected]

        (203) 214-5683 m

        (203) 643-8022 o

        (203) 643-8086 f

        [email protected]

         

        From: [email protected] [mailto:[email protected]] On Behalf Of
Jim Belisle
        Sent: Monday, November 22, 2010 16:25
        To: RBASE-L Mailing List
        Subject: [RBASE-L] - Re: Off topic

         

        This has been an interesting discussion to me since I connect
remotely to my computer at the site almost daily.

        Since I did not set up the VPN, I do not know how the system is
set up.

         

        I log into the VPN first through a system called Forticlient. 

        When this verifies that I am who I say I am, it connects me to
my computer on site.

        I have access to everything on the server that I would have if I
were sitting at my desk on site.

        The speed can at times be slow but usually that is only when I
use my cad programs. Even then it is very good speed.

         

        As far as I know I have never caused any corruption to the RBASE
database. 

        If fact I do my UNLOAD RELOAD and PACKING the database remotely.

        There have been times when the server up there actually crashed
and no corruption occurred. 

         

        Would anyone venture as to what type of connection I would be on
since it seems to work speedily?

         

        James Belisle

        
________________________________


        From: [email protected] [mailto:[email protected]] On Behalf Of
Lawrence Lustig
        Sent: Monday, November 22, 2010 3:06 PM
        To: RBASE-L Mailing List
        Subject: [RBASE-L] - Re: Off topic

         

        << 

        There's a huge difference in using a VPN to create a remote
connection such as via RDP, Dameware, VNC, etc. so as to execute R:BASE
on a desktop inside the location where the database is located, and on
the other hand attempting to execute R:BASE locally with remote data no
matter the connection type.

         

        I've never considered the latter to be viable.

        >> 

         

        There's another problem with using VPN to attach a remote
computer to your trusted network, even if it's not for file-server based
database work.  Essentially, you're allowing an untrusted computer to
infect your network.

         

        The best use of a VPN is to provide a protected route to get to
a remote desktop connection as described by Emmitt.  Don't allow the VPN
access to your file server, only to the RD server.  This hides your
remote desktop access from port scanners while not allowing the remote
machine to actually infect the network.

        --

        Larry

         

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