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1993-08-16
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***************************************************************************
APLogin - Replacement Login program for IBM TCP/IP.
Version 1.00ß
Copyright (c)1993 Andy Collins, Eric D. Mudama, All Rights Reserved
***************************************************************************
INCLUDED FILES:
READ.ME -The file you should already have read... :-)
install.txt -This file that you are reading
bin.zip -This includes the following: Note that by
unpacking bin.zip, you agree to the terms below.
(See DISCLAIMER)
-aplogin.exe -Replacement login program
-adduser.exe -Utility to add users to your passwd file
-greeting.txt -Sample Greeting message file
-welcome.txt -Sample Welcome message file
-badlogin.txt -Sample Badlogin message file
***************************************************************************
INSTALLATION:
To install APLogin, use the following procedure:
1. Rename the LOGIN.EXE that is included with IBM TCP/IP to
another name. This allows you to return to the old state
if you decide not to use APLogin.
2. Create a directory to hold APLogin. We recommend that
APLogin and its support files be contained in their own
directory.
3. Using a PKUNZIP 2.x compatible program, unzip the included
BIN.ZIP into this directory. This will unpack aplogin.exe,
adduser.exe, as well as the included sample text files.
4. Add the following environment variables to your config.sys
file:
Variable: Used for:
===========================================================================
ATLPAC_PASSWD_FILE location of passwd file (required)
ATLPAC_GREETING_FILE location of greeting file (optional)
ATLPAC_WELCOME_FILE location of welcome file (optional)
ATLPAC_BADLOGIN_FILE location of badlogin file (optional)
ATLPAC_LOG_FILE location of event log (optional)
Example:
===========================================================================
SET ATLPAC_PASSWD_FILE=C:\TCPIP\APLOGIN\PASSWD
SET ATLPAC_GREETING_FILE=C:\TCPIP\APLOGIN\GREETING.TXT
SET ATLPAC_WELCOME_FILE=C:\TCPIP\APLOGIN\WELCOME.TXT
SET ATLPAC_BADLOGIN_FILE=C:\TCPIP\APLOGIN\BADLOGIN.TXT
SET ATLPAC_LOG_FILE=c:\TCPIP\APLOGIN\MYLOG.TXT
5. Copy the APLOGIN.EXE file to LOGIN.EXE in your TCPIP\BIN directory.
This replaces the existing LOGIN.EXE, so be sure that you copied
the old one to another location.
6. Reboot your computer, to set the environment variables. Enjoy!
***************************************************************************
OPERATION:
The following section describes how this software works:
APLogin replaces your existing LOGIN.EXE program, and includes a login
procedure that supports multiple users with an encrypted password file.
We saw how the original TCP/IP login program only asked for a password,
which was contained in plain text in your config.sys file. We thought
that this could be improved, so we wrote APLOGIN.EXE.
Note that this does not secure the actual operation of your system, once
someone has successfully logged in. Behavior of your system after login
will not change by the use of this program.
The passwd file is a plain text file, like on any normal unix system.
Nobody, including root, can read another user's password from this file,
nor can a password be decoded. We believe that this program cannot be
broken unless someone has your actual username and password.
To allow for customization, we have included the ability to use your own
message files. These could announce any rules on your system, bulletins,
or current events to each person who logged in.
The first of these files, greeting.txt, is displayed before the user is
prompted for a username and a password. If a login is successful,
welcome.txt is displayed and the user is given a command prompt on your
system. This will usually be CMD.EXE. (Unless you have changed your
default command interpreter to 4OS2, or something else.) If a user fails
to get a correct password in three tries, the file badlogin.txt is
displayed and the connection is terminated. This file will usually just
say "Maximum retries exceeded." or something similiar. You are free to
customize these files as you wish. Keep in mind that these message files
are optional. If the files are not found, simple default messages will be
displayed.
Once you have installed the software, set the environment variables, and
rebooted your computer, it is time to create the passwd file. Move to the
location specified by the environment variable ATLPAC_PASSWD_FILE and type
'adduser'. If a passwd file does not exist here, one will be created.
Adduser will prompt you for a username and a password, which is hidden,
then it will prompt you to confirm the password. If the two passwords
match, it will add the user to the end of the password file. If the two
passwords do not match, the program will notify you of this and exit.
Also, adduser does not check to see if a user already exists. To change a
user's password, use any text editor to delete the line beginning with
their username. Then run adduser to add them to this file.
Once you have set up a user or two, you can try the program out, to
simulate a login, by typing 'aplogin' at the prompt. What is displayed is
that same information that someone 'telneting' into your machine will see.
Once you are satisfied with how it looks, you are ready to allow other
users to use your system.
If you wish to enable event logging, set the ATLPAC_LOG_FILE variable to a
text file of your choice. If this file does not exist, it will be created
at run time. This option allows logging of all successful and
unsuccessful logins to this file.
-Enjoy,
Eric D. Mudama and Andy Collins
***************************************************************************
REGISTRATION:
To register this software, please send check or money order for $5.00 to
either of the following addresses:
Eric D. Mudama Andy Collins
119 Bay State Road 12564 Scully Avenue
Boston, MA 02215 Saratoga, CA 95070
Please include the following form with your payment: It allows us to
enter you as a user in our database, and will get you upgrades in the
future. Also, if you don't include this form, we will have no idea what
the money is meant for. Thanks for your time...
====================== APLogin Registration Form ==========================
Name:______________________________________________________________________
Address:___________________________________________________________________
City:_______________________________ State:_________ Zip:________________
Internet E-Mail:___________________________________________________________
Host Address where it will be used: (optional) ______.______.______.______
Version of APLogin:______________________________________________ (1.00ß)
# of copies of APLogin in use:_____________ x $5.00 = ___________________
Total: ___________________
OPTIONAL:
Where did you get this copy of APLogin?
How did you hear about APLogin?
What suggestions do you have for future copies of APLogin?
================== End of APLogin Registration Form =======================
***************************************************************************
If you like this software, let us know. If you don't, let us know too.
We have a couple of other projects in mind, so some encouragement would be
great.
If this software does not work with your setup, let us know. We will
devote what time we can to getting it to work with your machine. Note that
this software has been tested under OS/2 2.1, and therefore ought to work
under OS/2 2.0, but this cannot be guaranteed. Also, it ought to work
with any recent release of IBM's base TCP/IP package.
Also note that this software is a 32-bit application, and therefore will
not work with versions of OS/2 prior to OS/2 2.0.
Thank you for your time,
Eric D. Mudama (edmudama@athena.mit.edu)
Andy Collins (acollins@uclink.berkeley.edu)
***************************************************************************
COPYRIGHT NOTICE AND DISCLAIMER:
Andy Collins and Eric D. Mudama disclaim all warranties, whether expressed
or implied, including without limitation, warranties of fitness and
merchantability with resspect to this software and the accompanying
documentation. Neither Andy Collins nor Eric D. Mudama, nor any other
people associated with us are responsible for any damages incurred through
the use of or the inability to use this software. By using this software,
you agree to these terms.
This software is shareware. If you like it, or decide to continue to use
this software beyond the 15-day trial period, a $5 registration fee is
required. By registering this software, you will recieve notification of
new releases of this software, and be entitled to free upgrades forever
when they become available.
This software may be distributed freely, provided that there is no fee
charged for the program, and that all of the original files are included
in the distribution without modifications. A distribution fee may be
charged, provided that no special fee is charged for this software.
Copyright (c)1993 Andy Collins, Eric D. Mudama, All Rights Reserved
*************************** End of Document *******************************