473,320 Members | 2,041 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,320 software developers and data experts.

How can I tell if file on linux box is moving across my LAN?

MLH
For simplicity, lets call my linux box L and my Windows box W.
Both are nodes on the LAN. Here are the knowns:

1) I have an MS Access app that automates sending of eMail
containing driver license scans for ID documentation to certified
recipients. It is a fee-based service.
2) L has SMTP mail service on it
3) W has outlook express mail client s'ware configured to use
POP & SMTP services on L
4) L has a 50K bitmap graphic file on it that I want to include
as an attachment to an eMail I am creating on W.
5) The file system in which the bitmap graphic is stored looks
like a directory to my Windows box and is seen as z:\ by W.

So I just type the full path & filespec as follows
z:\mydir\mybitmap.jpg
into outlook express' ATTACH: field and VOILA - there she goes.

QUESTION: When I click SEND, does the 50K graphic move across
the LAN from L to W, become attached to the eMail, then move again
from W to L and finally out the SMTP gateway?

My gut feeling is NO, it does not. Short of using a protocol analyzer
to snoop the wire, can any of you suggest a technique that will
proove my hypothesis right or wrong?

Normally, I wouldn't give this topic a second thought. But now, every
two days, I have 1000 of these transmissions and the rate is climbing.
It may become a source of congestion at a future point in time.

Nov 13 '05 #1
2 1218
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

I believe the email client retrieves the attachment and attaches it to
the email & then sends the completed email to the email server.

If you're worried about back-and-forth congestion, why not just copy the
image to the W box?

--
MGFoster:::mgf00 <at> earthlink <decimal-point> net
Oakland, CA (USA)

-----BEGIN PGP SIGNATURE-----
Version: PGP for Personal Privacy 5.0
Charset: noconv

iQA/AwUBQlw79oechKqOuFEgEQLeIACfXPmWMaSJhgwzy27e0kc2Q1 sNww4AoJ4H
mv+QBbs5OmtsoDfC3l30/XbE
=x1DR
-----END PGP SIGNATURE-----

MLH wrote:
For simplicity, lets call my linux box L and my Windows box W.
Both are nodes on the LAN. Here are the knowns:

1) I have an MS Access app that automates sending of eMail
containing driver license scans for ID documentation to certified
recipients. It is a fee-based service.
2) L has SMTP mail service on it
3) W has outlook express mail client s'ware configured to use
POP & SMTP services on L
4) L has a 50K bitmap graphic file on it that I want to include
as an attachment to an eMail I am creating on W.
5) The file system in which the bitmap graphic is stored looks
like a directory to my Windows box and is seen as z:\ by W.

So I just type the full path & filespec as follows
z:\mydir\mybitmap.jpg
into outlook express' ATTACH: field and VOILA - there she goes.

QUESTION: When I click SEND, does the 50K graphic move across
the LAN from L to W, become attached to the eMail, then move again
from W to L and finally out the SMTP gateway?

My gut feeling is NO, it does not. Short of using a protocol analyzer
to snoop the wire, can any of you suggest a technique that will
proove my hypothesis right or wrong?

Normally, I wouldn't give this topic a second thought. But now, every
two days, I have 1000 of these transmissions and the rate is climbing.
It may become a source of congestion at a future point in time.

Nov 13 '05 #2
MLH
It looks like I may have to do that. But I was trying to create an
environment in which the image file would not have to cross the
LAN at all when attached to an eMail. If on the W box, it will
definitely have to cross the LAN on its way to the SMTP gateway.

Crossing the wire once is better than twice, but ZERO was my
goal. Dunno if I can attain that.
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

I believe the email client retrieves the attachment and attaches it to
the email & then sends the completed email to the email server.

If you're worried about back-and-forth congestion, why not just copy the
image to the W box?


Nov 13 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

1
by: Burt | last post by:
My company needs to move a 30 Gig SQL Server across the country as soon as possble on July 1. Turns out moving the full db across the network takes a few hours. I'd like to move a full copy of...
6
by: Ernesto | last post by:
I'm in the process of moving a Python application from Windows to Linux. This means that the drivers for windows ".dll" now must be Linux drivers "shared library file" (.so I think). With...
10
by: Markus Enders | last post by:
Hi everybody, currently we use DB2 7.1 on several Solaris machines. Now we are planning, to migrate to SUSE Linux (newest version). I wonder, if we can keep our DB2 version 7.1, or if we need to...
11
by: ulyses | last post by:
Let's assume I have following file: 2938929384902491233..... 923949919199191919112.... File contains INTs only. What is more they are huge. For example first row in file may contain integer...
2
by: fuzzybr80 | last post by:
I am using MySQL 5.0 with a number of innodb tables whose ibdata files are growing quite quickly and filling up the /var partition (file is /var/mysql/ibdata1). Earlier on I followed instructions...
28
by: Tim Daneliuk | last post by:
I have a program wherein I want one behavior when a file is set as executable and a different behavior if it is not. Is there a simple way to determine whether a given named file is executable...
3
by: smusunuri | last post by:
Right now we have DB2 on Z/OS, collecting information on putting DB2 on Linux zseries. So that our company can save money on Z/OS cpu cycles(or MIPS). On our mainframe we have...
2
by: jonny | last post by:
I am using Visual Web Developer with ASP and VB.NET to build website. I would like to have Text moving across my screen that says "Example text moving across screen for viewers to read.". I...
15
by: mcjason | last post by:
I saw something interesting about a grid pair puzzle problem that it looks like a machine when you find each that work out the way it does and say with all the others that work out the way they...
0
by: DolphinDB | last post by:
Tired of spending countless mintues downsampling your data? Look no further! In this article, you’ll learn how to efficiently downsample 6.48 billion high-frequency records to 61 million...
1
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: Vimpel783 | last post by:
Hello! Guys, I found this code on the Internet, but I need to modify it a little. It works well, the problem is this: Data is sent from only one cell, in this case B5, but it is necessary that data...
0
by: jfyes | last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
1
by: PapaRatzi | last post by:
Hello, I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
0
by: Defcon1945 | last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 3 Apr 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome former...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.