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Network Supervisor's Toolkit
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Network Supervisor's Toolkit.iso
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logins
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logout
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logout.txt
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1996-07-10
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7KB
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181 lines
Unloading the Netware Shell
There are times when it is necessary to free up the memory used by
the NetWare workstation shell, whether it is to run a memory
intensive application, such a Aldus' Pagemaker, or to load other
network communications software, such as Digital Equipment Corp's
DECNET DOS. Additionally, it would be nice to easily restore the
workstation's path specifications, DOS COMSPEC (tells DOS where to
find COMMAND.COM), etc., to the state they were in before logging
in to the network. To accomplish these tasks most of us resort to
the infamous <Ctrl><Alt><Del> keys. With the help of a couple of
utilities, there is now a better way.
SETCWD, from Cyco Software of the Netherlands, will set the
environment variables CWD and DRV to the current working directory
and current working drive. By using %DRV% and %CWD% in a batch
file, you can return to that drive and directory.
LASTDRIV, from Software Suprizes, determines the last valid drive
available to a PC. If used after loading the NetWare shell and
before logging in, LASTDRIV will locate the SYS:LOGIN directory on
a file server.
MARKNET and RELNET, part of TSR Utilities Version 2.8 from
TurboPower Software, are specifically designed to release network
communications software. (TSR stands for Terminate-and-stay-
resident or RAM-Resident software.) The programs were written
primarily to release the NetWare shell but seems to work with other
LAN software as well, such as DECNET DOS.
MARKNET writes a disk file in which it stores information about the
system's status, then leaves a mark in memory 144 to 192 bytes in
size. RELNET will release any RAM-resident software loaded after
this mark.
By using these utilities in batch files you can create a logout
routine that will unload the NetWare shell files and restore your
DOS environment to the state it was in before loading the shell.
Here is one way to set this up:
o Copy SETCWD.EXE, LASTDRIV.EXE, MARKNET.EXE and RELNET.EXE to
the root directory of you boot disk (or the directory that
contains your network boot files, including the SHELL.CFG
file, if any).
o If your boot files are in the root directory of your boot
disk, add the command SETCWD to your AUTOEXEC.BAT file before
any drive or directory change commands. SETCWD will set the
variable DRV equal to the current drive letter (e.g., "C:"),
and set the variable CWD to your current directory (if this
is the root directory, then it would be "\"). Example:
SETCWD
PROMPT=$P$G
PATH C:\;C:\UTIL;C:\DOS
If your boot files are not in the root directory, use CHDIR
(CD) in your AUTOEXEC.BAT file to go to the directory
containing your boot files. SETCWD should be the very next
command in the AUTOEXEC.BAT file. Example:
PROMPT=$P$G
PATH C:\;C:\UTIL;C:\DOS
CD\NETBOOT
SETCWD
o If you want to load the shell and log in to a file server from
your AUTOEXEC.BAT file add the following lines to the end of
the file (after you have changed to the boot file directory
and run SETCWD):
MARKNET %DRV%\SHELL.MRK
IPX
NET3
LASTDRIV
LOGIN^Z *
This will:
o create the status file in the boot file directory of your
boot disk)
o load the shell
o locate the SYS:LOGIN directory on the file server
o run the LOGIN program.
If you do not want to load the shell and log in to a file
server from your AUTOEXEC.BAT file, then create a separate
batch file (such as NET.BAT) with the following lines:
%DRV%
CD%CWD%
MARKNET %DRV%\SHELL.MRK
IPX
NET3
LASTDRIV
LOGIN^Z *
This batch file will:
o change to your boot disk
o change to your network boot file directory
o create the status file in the boot file directory of your
boot disk)
o load the shell
o locate the SYS:LOGIN directory on the file server
o run the LOGIN program.
o Rename the LOGOUT.EXE program in SYS:PUBLIC LOGOFF.EXE. You
will have to flag the program read/write before you change the
name, then re-flag it read only.
o Create the following batch file in the SYS:PUBLIC directory
on your file server, name it LOGOUT.BAT, and flag it SRO
(shareable read only):
ECHO OFF
IF NOT '%1'=='' GOTO END
%DRV%
CD %CWD%
IF EXIST %DRV%\CLEARNET.BAT CLEARNET
:END
LOGOFF %1^Z *
This file checks to see if you have entered a file server name
as a parameter to the LOGOUT command. If you have entered a
server name, you are only logged out of that file server, and
the workstation shell is unaffected. If you have not entered
a server name, and there is a CLEARNET.BAT file in the boot
file directory of your workstation, control is passed to
CLEARNET.BAT, which logs you out of all servers, removes the
shell and all TSRs loaded after the shell and then resets the
DOS environment. If there is no CLEARNET.BAT file, you are
logged out in the normal manner.
o Create the following batch file in the root directory of your
boot disk and name it CLEARNET.BAT:
LOGOFF
RELNET %DRV%\SHELL.MRK^Z *
This batch runs the re-named LOGOFF (formerly LOGOUT) to log
you out of all file servers, then runs RELNET, which resets
the DOS environment based on the information previously placed
in the SHELL.MRK file by MARKNET.
If you log out from a station that has MARKNET and RELNET set up
properly, your shell will be unloaded and your environment reset.
If the workstation is not setup, you will just have a normal
logout.
MAPMEM, which is part of TSR Utilities, will display memory usage
in your PC. This can be used to make sure that the proper programs
are removed from memory. The DOS SET command will tell you if the
environment has been properly reset.
* A Note on Batch File End-Of-File Markers: In these batch file
examples the end-of-file marker (^Z) is placed at the end of the
last line, rather than on the following line. DOS looks for
another command to execute each time it encounters a carriage
return in a batch file. This is what causes the double prompt
displayed after the execution of batch files. By placing the end-
of-file marker on the same line as the last command, the double
prompt is eliminated, and DOS does not look to the boot drive to
execute another command after running the NetWare login script.
Patrick H. Corrigan
The Corrigan Group - Information Services
San Francisco, California
Telephone: 415/296-9219
Fax: 415/296-9421
CServ: 75170,146
June, 1989
This file is from the companion disk to Building Local Area Networks
With Novell's NetWare, by Patrick H. Corrigan and Aisling Guy. It was
uploaded by Patrick Corrigan.