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DAVROM CONSULTING Newsletter - Issue # 08 - Dated: Sun Mar 17 20:47:54 EST 2002

From the desk of David Clark

Back in my Q_unix/Release4 days we used to find that similar support issues
seem to come around at the same time. For us this last month it seems to be
the "death of the tape drives" on SCO systems syndrome as well as some modem
issues on HP-UX. I have noticed this phenomenon for years in the support
industry and it hasn't changed.

In this issue we cover the new Caldera Messaging Server and connecting up
your SCO OpenServer/Unixware server as an Internet Gateway.

I would like to thank the reader for their time in reading this newsletter.


Caldera Volution Messaging Server

For those of you who could not attend the recent Caldera seminars on
Volution Messaging Server, I have quickly covered some details on this
awesome product.

With Caldera Volution Messaging Server we finally have a Linux product
that directly interfaces completely with MS Outlook clients including
features such as caldendaring which in the past UNIX e-mail server engines
could not provide.
Volution Messaging Server supports MS and non-MS e-mail clients such as
MS Outlook, Eudora, Netscape, Kmail, IMP - basically any e-mail client
should work as they all use standard POP and IMAP protocols.

Essentially you can put Volution Messaging Server right into a legacy
Windows MS Outlook network and provide a feature for feature robust
solution with the added "uptime strength" of UNIX/Linux and at a much
lower cost.

Volution Message Server provides you with a fully functional web interface
(ie managed by your favourite browser) and users in the e-mail system
exist independent of the Linux OS itself.

One nice part of the current licencing is that you can test drive the
product with the 60 day eval before committing to buy.

DAVROM CONSULTING sees the future of this product as one of its major
supported platforms so if you are interested in looking at this awesome
solution, please contact us.

For more information on the product you can go to:


SCO as your Internet Gateway

A few sites out there are using Windows PC's to connect to the Internet
to retrieve e-mail and surf the "net" - these require their own modem
and can only be used by one single user at a time. If you are running this
type of connection, why not consider using your SCO server as an Internet

Your existing SCO server is capable of acting as your Internet gateway
for your network instead of your local PC's dialing up with their own
modem. You use the same dialup connection from SCO as you would your
Windows PC (ISP username and password) and the SCO server is assigned a
dynamic IP address each time it connects - this helps with security as
well in that you are not running as a set IP address all the time and
most ISP's disconnect you after four hours, and you get a new IP when SCO
re-connects automatically. If you do get a permanent IP address then you
can turn your SCO server into your e-mail and webserver as well.

All that is required for SCO OpenServer server is to be setup with PPP
(MorningStar PPP is preferred) which comes bundled with SCO OpenServer. For
Unixware7 (now Caldera Open UNIX 8) PPP dialout is an integrated part of
the Network Manager.

For OpenServer you need the "ipf" supplement to turn your server into a
gateway with network translation (and firewall rules if required).

A few customers are now running this type of solution and it works well.
The local PC's in the network simply point to the SCO server as their
gateway and SCO handles the rest.

DAVROM provides a script that allows you to login and take the Internet
connection up or down as the case may and even perform some diagnostics
on your connection.
Please feel free to contact us to discuss implementing this for your

Tech Tip

Here is a quick procedure on ftp-ing a tar archive file up to a remote
server and using the automated feature of the $HOME/.netrc file.

Say we want to automatically upload a file called "portal.tar.gz" to a
remote server called "mail.dynamite.org". Firstly we place an entry in the
".netrc" file in our $HOME directory with an entry containing the login
name and password for the remote server:

machine mail.dynamite.org login mydymite password expl0de

next we need to make the ".netrc" file read-only by the owner with the

chmod 600 .netrc

Now we build a shell script called "dynamiteportal" using your favourite
UNIX text editor such as "vi", "vim" or "pico".

The contents of the script would be:

ftp mail.dynamite.org << eof
prompt no
put portal.tar.gz

Now make the script executable with "chmod 755 dynamtieportal".

Now run the script. It will copy the file up to the remote server with no
human intervention required.

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