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Text File | 1993-04-03 | 5.0 KB | 120 lines | [TEXT/QED1] |
- System Folder Lock & Control Panel Lock
- ===============================
-
- At the school where I teach, we have recently installed several Mac LC's with
- hard drives. In the past, we had only dual-floppy Pluses, SE's, and Classics, so
- security was not a big problem. However, with the hard drives on the new
- machines, the potential for problems is great. The Locks I've written are intended
- to help avoid problems such as bozos mucking around with the Control Panel or
- System Folder. The Locks work well together under system 6.0.7 or 6.0.8,
- but I have not yet had time to make them system 7 compatible. =(
-
-
- Shareware:
- -----------
-
- I wrote these programs because I needed them. If you use them, please be
- considerate enough to compensate me for my lost March Break (I spent the whole
- week working on these things).
-
- If you use the System Folder Lock, I ask that you send $10. If you use the Control
- Panel Lock, I ask that you send $5. If you use both, just send $10. Site licenses
- are available, as are educational discounts for bulk orders.
-
- As the control panel interface says, registered users will get goodies in return—
- whatever I happen to have come up with lately, including the most recent versions
- of The Locks. Right now, I'm working on a program to scan a hard drive and
- compare the contents against a master list of what should/shouldn't be there, and
- automatically move unrecognized junk to a common folder called "Student Work"
- (the kids have a habit of leaving a lot of garbage on the hard drives, and it's a pain
- to manually clean it up).
-
-
- My address is:
-
- Roy Wood
- 122 Britannia Avenue
- London, Ontario
- CANADA
- N6H 2J5
- (519) 438-3177
-
- or you can contact me at school:
-
- Roy Wood
- c/o Birchmount Park CI
- 3663 Danforth Avenue
- Scarborough, Ontario
- CANADA
- M1N 2G2
-
-
-
- System Folder Lock:
- -------------------
- Place this cdev in your system folder, and once it has loaded, the system folder
- will be invisible under all circumstances. Note that this patch does not simply
- mark the system folder as invisible; it hooks into the PBGetCatInfo system trap
- and prevents the system folder from being listed in any dialog box, as well as the
- Finder. If the system folder were simply marked as invisible, it would still appear
- in save/load dialogs, and bozos would still be able to get into it and muck around.
- Note that access to the system folder is still possible— e.g. MS Word can still
- create its temporary files in the system folder.
-
- Note that the System Folder Lock must be the last INIT to load; otherwise when
- it locks the system folder, the System will not be able to locate any INIT's
- which should be loaded after the System Folder Lock.
-
- The System Folder Lock has a simple control panel interface which allows you to
- enable/disable locking of the system folder. Obviously this simple interface is
- a security problem, which is where the Control Panel Lock comes in....
-
-
- Control Panel Lock:
- ------------------
- Place this cdev in your system folder, and after it has loaded, access to the
- Control Panel will be password-protected. This means that bozos will not be able
- to muck around with stuff they shouldn't be mucking around with— e.g. the System
- Folder Lock.
-
- To gain access to the Control Panel when it is locked, hold down the command
- and option keys while choosing "Control Panel" from the apple menu. A dialog box
- will appear and you will be prompted to enter the password (the default password
- is "BPCI", no quotation marks of course). If you enter the correct password, you
- gain access; if you enter the wrong password, you're out of luck. Be aware that
- the delete key is not implemented— sorry!
-
- The Control Panel Lock has a simple control panel interface that allows you to
- change the password easily.
-
-
- Installation of System Folder or Control Panel Lock:
- -----------------------------------------------
- No tricks are involved in installing The Locks— just place them in your system
- folder and reboot. If things work right, you should see their icons displayed at
- startup. If there is a problem with a Lock, its icon appears with an "X" drawn
- through it (at present, no information is given as to why there was a problem,
- though I could fix that if enough REGISTERED users were to encourage me).
-
-
- Removal of System Folder or Control Panel Lock:
- ---------------------------------------------
- If you have access to the system folder, just drag The Lock out of the system
- folder, and then restart the machine. If you do not have access to the system
- folder (e.g. you forgot the password and can't get into the Control Panel), then
- boot up with a floppy and then remove The Lock from the now-unprotected
- system folder.
-
-
- Shortcomings of The Locks:
- -------------------------
- If a user boots up from a floppy, he or she will easily bypass The Locks. As well,
- the Control Panel Lock password is easy to discover if you have a copy of ResEdit
- and care to examine the Control Panel Lock's 'STR ' resources (no encoding, since
- there are so many loopholes anyway).
-
- Remember, The Locks are deterrents. Determined Bozos will always find some
- way to cause you grief.
-
-
-