[olug] Mail Relaying w/Filtering

[Eric Penne]

Along that same thread we would be able to set up a mail server on each
base station and have it email the info to us.  The problem is that the
base stations are low on memory.  The station is a 386 ALI chip with
8MB Disk on Chip and very little ram.  It works very well for our
purposes with some modification to the original Disk on Chip.  I think
these were originally used as a fax/email gateway with serial interface
to a console.  I am not completely sure about what can be done on this
machine but I will check it out.  It may be simpler to run an
individual server on each machine to send email.

Eric

--- Nick Walter <waltern at iivip.com> wrote:
> Oddly enough, I'm almost done with a very similar project for my
> employer.  We are trying to get linux systems to report status/log 
> information in automatically via the internet.  What I found to be
> the
> lowest-headache-factor method was to have the systems report the info
> to
> a web page.  Specifically to a cgi or java servlet that can do
> something
> intelligent (anything you want pretty much) with the info once it's
> submitted.  Going out on port 80 avoids firewall issues almost every
> time.  If your ISP tries to block port 80 incoming, change ISPs.
> 
> If you, or anyone working with you on the project, has c/c++ or java
> coding skills it's rather easy to set up a web server with a cgi or
> java
> servlet to accept HTTP POST or HTTP GET submissions.  If the
> information
> has a static structure this will be really easy, and it's still
> do-able
> if the amount or content of the information is variable.  
> 
> Once your collection-point web server has the data, it can email it
> out
> again, or compile summary reports, or do alarm notification if the
> data
> is a critical alert, etc.
> 
> In my project, I've found that the hardest part is not collecting the
> data, but assembling web-based summaries and reports that are pretty
> enough to satisfy the management and marketing people :)
> 
> Nick Walter
>  
> On Thu, 2002-11-14 at 10:04, Eric Penne wrote:
> > I have project coming up in the next couple weeks for work that I
> don't
> > have a lot of knowledge about.  We will be using Linux, so the good
> > news is that I will be able to read/learn about it.  
> > 
> > We have base stations out in the field that collect data from our
> > system.  These base stations (linux based 386) have ethernet,
> serial,
> > and modem connections.  The serial reads data from another module. 
> The
> > ethernet and modem are used for communications with us.  The modem
> can
> > dial into our service provider and email the data it has.  The
> service
> > provider won't let us do the same thing through ethernet because it
> > does not orginate from inside thier system (ie not from their modem
> > pool).  We wnat to set up a mail relay system that we can use for
> all
> > email communication (modem and ethernet).  Of course we don't want
> it
> > to be open to the rest of the world.  Here is my question:  Can we
> set
> > up a relay that can filter the mail so that it must conform to a
> > specific format or have a specific identifier in it?
> > 
> > Ideally we wouldn't have to base it on MAC address or anything so
> that
> > we don't have to update the mail server everytime we send out new
> > units.  We also might have other issues with the buyers firewalls
> but
> > that will be addressed later.
> > 
> > Later
> > Eric
> > 
> > 
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=====
Eric Penne - epenne at ieee.org

One nation, under God, INDIVISIBLE.

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