Date : Wed, 17 Aug 2005 23:12:15 +0100
From : "Ian Wolstenholme" <BBCMailingList@...>
Subject: Re: Econet
I am not familiar with the FSCat utility you mention but I appreciate
that somebody may have written a programme to view the partitioned
section of a disc in Level 2 or 3 Econet. The point I was trying to make
is that you can go and view the L4 files on a 32-bit machine using
nothing other than the usual ADFS *CAT and *DIR commands.
On an 8-bit machine with a disc containing a L2 or L3 Econet partition,
you can't do this without a specialist utility programme like the one you
mention.
You can't instantly see the L2 or L3 partition simply by cataloguing the disc
whereas in L4 you can see the Econet files simply by cataloguing the disc.
Best wishes,
Ian
----- Original Message -----
From: jgh@... (Jonathan Graham Harston)
To: bbc-micro@...
Sent: 17 Aug 2005 01:19:06 +0100
Subject: [BBC-Micro] Re: Econet
"BeebMaster" <BeebMaster@...> wrote:
> I don't like Level 4 personally, it seems to me that there is no security
> on it. In other words it stores all the Econet data in ADFS format in
> a directory on your hard disc so anybody could go in and have a look.
Jonathan Graham Harston wrote:
> It's secure if you access it across the network. Like any server
> that you can access from the "console", the console owns
> everything, and so, of course, there is no security there. You
> secure it by locking it in a cupboard.
"Ian Wolstenholme" <BBCMailingList@...> wrote:
> I don't agree. If you go to the Archimedes server running L4
> Econet, you can examine the contents of the Econet area of
> the disc as it is simply stored as files on the hard disc in a separate
> directory. You can look into that directory in the same way that you
> could look into any other directory on the hard disc drive.
>
> If you go to the BBC micro server running L3 Econet, you can't
> look into any of the Econet partition as it is beyond the end of the
> hard or floppy disc attached to the machine. You can't go into the
> disc and look at what Econet users have stored as the data is
> not visible from the server machine.
Yes you can. Go to *ANY* machine running a fileserver, *ANY*
filesever, and bypass the file server program and you can bypass
the security and see the users' files. By the very virtue of the
fact that the file server program *itself* needs to be able to get
at those files, it is only the file server program that imposes
any security. Access the disks directly on the machine running the
file server program and you automatically and unavoidably bypass
that security, as you aren't using the security in the *file
server program*. See:
=>*FSCat
Level2FS: MASTER (162)
Dir. $
!BOOT WR/R BOOT DL/ ECONET WR/R LIBRARY DL/
PASSWORDS / TELETEXT DL/
<fx: change disks>
=>*FSCat
Level3FS: MASTER (092)
Dir. $
!Boot WR/R BOOT DL/ ECONET WR/R LIBRARY DL/
TELETEXT DL/ SYST DL/ UTILS DL/
<fx: change disks>
=>*FSCat
MDFS: System (109)
Dir. $
!ComDat WR/R !Fonts DL/ 'ArmBoot DL/ Apps D/
ArmBoot DL/ ArthurLib DL/ BackState DL/ Banners DL/
Boot DL/ C D/ DriveC LWR/WR FileDBs DL/
FS LR/ incoming DL/ index/htm r/R Library D/
NoKBD DL/ outgoing DL/ Rom D/ Support DL/
SysProgs DL/ Syst DL/ Teletext D/ Utils D/
_Make WR/R _Update WR/R _ZipNew WR/R
=>
--
J.G.Harston - jgh@... - mdfs.net/User/JGH
Sheffield Boundary Review at http://mdfs.net/User/JGH/Docs/Politics/ParlReview