* * * * * * * * * * * * * * * *
                  *         ----------          *
                  *         "NOSintro"          *
                  *         ----------          *
                  *                             *
                  *    An Introduction to the   *
                  *            KA9Q             *
                  *   Network Operating System  *
                  *                             *
                  *      by Ian Wade, G3NRW     *
                  *                             *
                  *                             *
                  *  A "DOWERMAIN" PUBLICATION  *
                  *                             *
                  *      ISBN 1-897649-00-2     *
                  *                             *
                  * * * * * * * * * * * * * * * *


                    356 pages, fully illustrated.

          GB Pounds sterling:  11.50 + packing and postage



"NOSintro", the definitive guide to the KA9Q Network Operating
System (NOS), is now available.

In "NOSintro" you'll find a wealth of practical information,
hints and tips for setting up and using the KA9Q NOS.

Ideal for beginners and more advanced users alike.

-----------------------------------------------------------------
The emphasis is on hands-on practicalities.  You'll see exactly:

**   how to install NOS on a PC.

**   how to set up the control files.

**   how to check out basic operations before going live.

**   how to use NOS commands for transferring files, logging in
     to remote systems, sending mail and so on.

-----------------------------------------------------------------


=============
What's Inside
=============

1    Intro to NOSintro
2    NOSview
3    The Ground Rules
4    NOS in a Nutshell
5    Let's Meet the Locals
6    The TNC Revisited
7    A Peek at Protocols
8    Names, Domains and Addresses
9    Client/Server
10   Hands On - Hardware Checkout
11   Hands On - Software Installation
12   NOS File Compendium
13   Hands On - Session Manager
14   The NOS Command Set
15   Hands On - autoexec.nos
16   The ftpusers File
17   Hands On - FTP
18   NOS BBS - The Big Picture
19   Setting up the NOS BBS
20   The NOS BBS Command Set
21   Hands On - BBS File Server
22   Hands On - Remote Sysop
23   Forwarding SMTP Mail
24   Pop Mail Collection
25   PBBS Mail Forwarding
26   AX.25 Routing
27   Address Resolution Protocol
28   IP Routing
29   NET/ROM Routing
30   Going Live: Preparing the Files
31   Hands On - AX.25
32   Hands On - NET/ROM
33   Hands On - Ping and Hop
34   Hands On - DNS System
35   Trailing Flag

==========
Appendices
==========
1    Where to get the Software
2    NOS Command Set Reference
3    NOS Control Files
4    Character Codes
5    IP Address Coordinators
6    References


**   356 pages, copiously illustrated with over 80 detailed
     diagrams, plus countless examples of commands and screen
     displays.

**   Extensive and detailed appendices.

**   Full listings of all the control files needed for NOS.

**   Although specifically written for a DOS environment, most
     of the text is equally applicable to Amiga, Atari, MAC,
     UNIX, VMS and Archimedes implementations of NOS.
_________________________________________________________________



=================
MAIL ORDER PRICES
=================

All prices are in  (GB pounds sterling).

Mail to UK addresses:           12.85  GB pounds
Airmail to rest of Europe:      14.42  GB pounds
Airmail to Americas, Africa:    16.73  GB pounds
Airmail to rest of the world:   17.34  GB pounds

Payment either:

1.  By cheque, in GB pounds sterling, DRAWN ON A UK BANK ONLY.
    Cheque to be made payable to "DOWERMAIN LTD" and crossed
    "A/C PAYEE ONLY".  No other banks or currencies please; it's
    too expensive to convert to sterling.

    or

2.  By credit card.  You will be charged the appropriate price
    listed above in GB pounds sterling.  Your credit card company
    will add a nominal currency conversion charge if applicable.


To obtain your copy, please print out and fill in the order form
below:


--------------------------- cut here ----------------------------

                      NOSINTRO ORDER FORM


Name:      ..........................................


Address:   ..........................................


           ..........................................


           ..........................................


           ..........................................


Please send me a copy of "NOSintro" and bill my credit card:

       12.85 / 14.42 / 16.73 / 17.34 GB pounds
       (delete where not applicable)



Credit Card No (VISA/Mastercard/Eurocard):  .....................


Expiry Date:  ...........................



Signature:    ...........................


--------------------------- cut here ----------------------------

then mail to:

               DOWERMAIN LTD
               Maxlet House
               Liverpool Road
               Luton
               Bedfordshire
               LU1 1RF
               United Kingdom


(Please note: your order must be in written/printed form.
We cannot accept orders by phone or electronic mail).


P.S.  The book "NOSintro" makes several references to the
      "NOSview" software package.  This package contains a
      full working set of KA9Q NOS software, complete with
      all the control files listed in the book.

      The "NOSview" software is available free of charge.
      If you would like a copy, enclose a DOS-formatted
      diskette (any size EXCEPT 360KB) with your order for
      the book.  N.B.  I can only supply the software in
      DOS format.

      (Please make sure the diskette is adequately protected.
      I've received a few diskettes recently in very flimsy
      airmail envelopes, and of course they were damaged).


NOTE: NOSintro is available through the W.I.A bookshops