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THE IBM VMSSP SYSTEM
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PART ONE
BY
THE MOTORHEAD
Uploaded by Elric of Imrryr
Lunatic Labs UnLimted
INTRODUCTION
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IBM's VMSSP mainframe operating system is for one of the most
sophistocated computers available today, the IBM 303x and 308x families of
processors. These computers can handle vast quantities of memory, handle
hundereds of users logged in at one time, plus access many high-volume hard
disks at once. To someone who has only used an Apple, a VMSSP computer would
definitely fit the title 'supercomputer'. This series of
tutorial text files will attempt to give the reader enough knowledge about the
system to perform some usefulddestructivewwhatever tasks on
hishher own.
LOGGING IN
----------
Logging onto the computer is, of course the first and most important
step. The first thing you have to find is a valid username. This can be hard
to do, because there is, to my knowledge, no way of seeing who is on a
system before you have logged in. Very clever for security, but not too
friendly for the average userhhacker. If you need to hack out a username, they
are from 1 to 8 characters long, and have a 1-to-8 character password
associated with them. Start out by trying such common first and last names
like 'Jones', etc.
The login command on a VMSSP system is, quite simply, LOGIN (or LOGON). You
would issue the login command like this:
.LOGIN []
(The '.' is the prompt, and is optional; if you don't supply a
password, the system will prompt you for one.) If the username you have tried
isn't valid, you will get the message:
DMKLOG053E NOT IN CP DIRECTORY
If the password you've tried is wrong, this message will appear:
DMKLOG050E PASSWORD INCORRECT
If there is already somebody logged in
on the account you've tried, you will get this message:
DMKLOG054E ALREADY LOGGED ON {LINE|GRAF|LUNAME} raddr
Once you've gotten a correct usernameppassword combination, you will
be greeted with this line:
LOGMSG- hh:mm:ss mmdddyyy
This indicates when the system logon message was most recently revised. Then
the system logon message will be displayed, and you will be told if you
have any files waiting for you in your 'reader' (which will be explained
later). This message will look like this:
FILES: {nnn|NO} RDR, {nnn|NO} PRT, {nnn|NO} PUN
One important thing to look for is one of the following messages:
LOGON AT hh:mm:ss zone weekday mmdddyyy
RECONNECTED AT hh:mm:ss zone weekday mmdddyyy
RECONNECTED means that you have ben re-connected to a session that was stopped
using the 'DISC' command instead of just logging out. You should get off this
as soon as possible, as the person who disconnected probably will be wanting to
get back onto their account.
Now that you know how to log into the system, you are ready for some of
the more basic commands of the operating system.
QUERY
-----
The QUERY command is used to get various bits of information about your
session on the machine, and various other system statistics. There are many
options associated with this command, and only a few of them will be described
here. (Note: the QUERY command can be abbreviated to just 'Q')
Q TIME - display the current time and date on the screen
Q Reader|PRinter|PUnch - displays on the screen files, if any, in the
reader.
Q DIsK [mode] - Gives information about the various 'minidisks' attached
to the session at one time.
Q SEARCH - Similar to Q DISK.
Q USERS - Tell how many users are logged on to the system.
Q NAMES - give the usernames and terminal addresses of all users logged
onto the system.
LISTFILE [ []]
---------------------------
The LISTFILE will give a list of all or some of the files on one of the
minidisks attached. The wildcard character '*' can be used to search for
groups of files with a certain filenameffiletype.
GIME