HDTenEightyP/NetNews huggingface dataset:
From: davidh@muppet.bt.co.uk (David Hobley)
Newsgroups: alt.hackers
Subject: Re: stupid floppy tricks
Date: 18 Nov 92 10:23:02 GMT
Reply-To: davidh@muppet.bt.co.uk
Organization: British Telecom Research Laboratories

In article Fvq@cs.psu.edu, liblit@cs.psu.edu (Benjamin R. Liblit) writes:
>In article <1992Nov17.170841.6298@mcs.anl.gov>,
>hoffberg@medusa.aps.anl.gov (Mike G. Hoffberg) writes:
>
>> OK, for all of you people out there with Apple ][ disk drives, why
>> don't 5.25" High Density disks work in the drives?
>
>Just think about the density of information you're dealing with here.
>Even if you could produce the proper signals in the write head, you
>couldn't lay them down on the disk surface accurately enough.  It
>would be like trying to type by hitting the keys with a basketball.
>
>(Disclaimer: I don't particularly know what I'm talking about here.)
>

As I recall, the new disc drives had heads which were 1/2 the size of
the older drives to allow them to access the higher density data.
To read old format low density, they used to move to the centre of
the (wide) track to read.

 	+++++++++++++++++++++++++++++
      ++Low density r/w head
      |	-----------------------------	
      |	High density r/w head
      |	-----------------------------
      ++Low density r/w head	
	+++++++++++++++++++++++++++++

Thus with the new discs, the old drive would try to write one track over
two of the new ones, and everything got rather confused. I'm pretty certain
that was why.

ObHack:
	Writing a disc formatter in m/c for my BBC to get the interleave right.
Ended up 3x as fast as the commercial one I used previously.

ObHack2:
	When I upgraded my BBC B to a Master, I got a lot of old games working
by editing the binaries and modifying all the jmp to_direct_addresses to the OS rom
to go through the vectors in page 2 (? -- been kinda a long time now). Simple enough
but it irritated me at the time.
---
        David Hobley    davidh@muppet.bt.co.uk
Through the darkness of futures past / The magician longs to see.
One chance out between two worlds    / Fire walk with me.
Newsgroups: alt.hackers
From: koziarz@chinet.chi.il.us (Louis Koziarz)
Subject: Re: stupid floppy tricks
Organization: Chinet - Public Access UNIX
Date: Thu, 19 Nov 1992 19:12:26 GMT

>>> OK, for all of you people out there with Apple ][ disk drives, why
>>> don't 5.25" High Density disks work in the drives?

Sigh...I miss the old Apple ][ disk drives, especially hacking RWTS.

ObHack: Liberating and modifying the Disk ][ interface card's recalibrate
        routine to slam the r/w head against the home plate at different
        frequencies...ever hear a disk drive play 'Daisy' before booting?

-- 
Louis Koziarz
koziarz@chinet.chi.il.us
Newsgroups: alt.hackers
From: scm3775@tamsun.tamu.edu (Sean Malloy)
Subject: Re: Cheapo hack.  Kinda, sorta, not.
Organization: Texas A&M University, College Station
Date: Sat, 21 Nov 1992 07:05:25 GMT


Ben Feen writes:
>Anyone ever decoded the DTMF at the beginning of track 8 on _Hack_, entitled
>"Hard Currency"?  I don't have the equipment to do it, and don't feel like
>playing it into a telephone to find out who answers...

Hmmm...  Well, the "simple" solution to decoding DTMF tones (read: 
doesn't require me to purchase equipment) is to sample the track
and write a program to do a discrete Fourier transform on the
data and look at the frequency spectrum.

ObHack: starting (but never finishing) the above...  Maybe after finals.

-Sean

-- 
 
  Sean C. Malloy  -  Texas A&M University  -  scm@tamu.edu
Newsgroups: alt.hackers
From: adamfox@super.super.org (Adam Fox)
Subject: Re: cracking login?
Keywords: cracking loign
Organization: Supercomputing Research Center, Bowie, MD  USA
Date: Sun, 22 Nov 1992 21:56:21 GMT

In article <1eorh6INN684@dixie.cs.ubc.ca>, hassan@cs.ubc.ca (Moustafa Hassan) writes:
|> I've thought of a scheme for logging in as any user in a given file system.
|> The only problem is that it's too easy.  I must be under some illusion.
|> I'd appreciate it if someone pointed out the flaw in my algorithm:
|> 
|> 1.  Obtain the code for login.c.  I've done this.  I'm having some trouble
|>     compiling it, because some constants are defined differently on my 
|>     system.  I should be able to fix this within a month's work.
|> 2.  Change the call to getpass to a function that reads in an arbitrary number
|>     of characters up to the newline.  This is trivial.
|> 3.  Remove the encryption step where the password is encrypted.
|> 4.  Recompile.
|> 5.  When executing login, give it (the publically available) user id and 
|>     encrypted password of any user on the system, and you're in.
|> 
|> As I said, this scheme is too easy, and I refuse to believe that unix systems
|> lack security to such a degree.  Would someone take the time to disillusion
|> me?

I don't believe this will work because if I am not mistaken, the password
is sent PLAINTEXT and is then encrypted on the remote host, then compared
with the encrypted string in the password database.  Therefore, sending an 
encrypted hash would not help as that hash would be hashed.

-- Adam Fox
adamfox@super.org


Newsgroups: alt.hackers
From: deraadt@newt.cuc.ab.ca (Theo de Raadt)
Subject: Re: ping from 30,000 feet
Organization: little lizard city
	<1e1ntmINNdb6@terminator.rs.itd.umich.edu>
Date: Sun, 15 Nov 1992 21:11:20 GMT

Re: sending mail from weird places.

This summer a few friends and I climbed Mount Shasta. I sent email
out of a Motorola "mail brick" thingy that one of the guys brought
along. So, you can count that as mail from 14,162 ft. Naturally, it
was very short piece of mail -- it was bloody cold.
 <tdr.
--

This space not left unintentionally unblank.		deraadt@newt.cuc.ab.ca
Newsgroups: alt.hackers
From: sfought@mcs213k.cs.umr.edu (Shane Fought)
Subject: Hackin
Date: Tue, 17 Nov 1992 07:43:20 GMT
Organization: University of Missouri - Rolla

Well I guess ill see if this post goes out.  If not well then atleast it will
be flame proof.

Hack..  working revising dictionary hacking of unix passwords, using defualt
passwords that are distibuted to new users.  Next I hope to get into the
protected directories on the Novell file server...

Later...
From: hennessy@acsu.buffalo.edu (DOG BASEBALL!!!)
Newsgroups: alt.hackers
Subject: Thanks for replies, and a sub-hack
Date: 16 Nov 92 17:57:03 GMT
Organization: Ministry of Information, Lower Volta.


	Thanks for all the replies, I figured out what was needed, and
also learned some interesting things about how usenet news handles
formatting and how condescending some folks can be and how nice others
can be.  

BubbleGumHack:  The wiper fluid wouldn't work on my '81 VW Rabbit, and
my windscreen was covered in road salt, so I had to pull over to wipe
it off with napkins (ALWAYS keep your napkins from drive-thru!).  I
looked under the hood to see if my fluid was empty, and the reservoir
was _F_u_l_l_! so I checked the line from the reservoir to
the nozzle and lo and behold, a hole!  so, luckily I was chewing gum
at the time, so I took it out of my mouth, wrapped it round the hole,
and had a clean windscreen!  And the gum stayed there until I totaled
the car, I guess it froze on and stuck!
	alright, not much, but better than nuttin.

-- 
   /I\          Fuck 'em if they can't take a joke.
  /(*)\         hennessy@acsu.buffalo.edu                 
 /IIIII\        "Leave EVERYTHING to ME!" - Powdered Toast Man       
/IIIIIII\       Happiness is a warm gun.
Newsgroups: alt.hackers
From: schubach@skink.cis.ohio-state.edu (bernard william schubach)
Subject: Re: Stupid Floppy Tricks.
Organization: The Ohio State University Dept. of Computer and Info. Science
Date: Mon, 23 Nov 1992 23:21:20 GMT

In article <1992Nov23.121606@cogs.sussex.ac.uk> joek@cogs.sussex.ac.uk (Josef Karthauser) writes:
>
>I discovered this quite by accident, but what's strange is that on 3 1/2"
>disks the problem doesn't seem to exist. The media is interchangable!

Speaking of which, I recently saw an ad for IBM PS/2s with
2.88MB drives.
Does anyone know anything about these "super high density drives."

ObNONhack: This posting
ObSemiHack: A friend couldn't remember his DOSSHELL password.
A quick look at DOSSHELL.INI, and I found that the
passwords were in plain text.
ObRealHack: Maybe next time.

Bernie.
Newsgroups: alt.hackers
From: dododge@wam.umd.edu (David O. Dodge)
Subject: Re: how to: use underlines/extended chars in posts?
Organization: University of Maryland, College Park
Date: Thu, 19 Nov 1992 03:15:25 GMT

In article <1992Nov15.000148.29093@CSD-NewsHost.Stanford.EDU> nlu@Xenon.Stanford.EDU (Nelson Lu) writes:
>In article <1992Nov14.235438.28775@CSD-NewsHost.Stanford.EDU> nlu@Xenon.Stanford.EDU (Nelson Lu) writes:
>
>>Well, can't you just use ^H for going back a character and then insert _ for
>>underline?
>>
>>(e. g. (I hope this works) U_n_d_e_r_l_i_n_e_)
>
>Well, it didn't, but this should:
>
>_U_n_d_e_r_l_i_n_e

Not on my screen (VT-100 emulator). I'm seeing highlighted text.
Just one more reason why you shouldn't use control characters in postings.

ObHack: This (my first) posting, if it makes it through.

                                             -Dave Dodge/dododge@wam.umd.edu
Newsgroups: alt.hackers
From: b645zax@utarlg.uta.edu (David Richardson)
Subject:  Hacker-Pschorr Beer
News-Software: VAX/VMS VNEWS 1.41    
Keywords:  Hacker, beer, German
Organization: The University of Texas at Arlington
Date: Wed, 18 Nov 1992 00:43:00 GMT

Found at a garage sale:  1 paper coaster (for hot/cold drinks) with the
following ad:

                 1417  P

             HACKER-PSCHORR
                MUNCHEN
             Braurosl Weisse
    Altbaeyerisches      Hefe-Weissbier

 (Picture of young lad on horseback, holding a beer)

     Hacker-Pschorr - Das Bier furs Leben

Anyone care to translate?

OBHack:
Getting Laser Printer to print Times 13 on a Mac AS PROSTSCRIPT.  Status:  In 
progress (52Pt. divided by 4 works though, but I want PostScript!).

-David Richardson  -  The University of Texas at Arlington  -  +1 817 856 6609
b645zax@utarlg.uta.edu                         after 12/15/92: +1 817 461 4799
Postal: 1904 Silverleaf, Pantego, TX 76013-3124 USA    (other nets on request)
SPAN:  UTSPAN::UTADNX::UTARLG::B645ZAX    uucp: uunet!utarlg.utarl.edu!b645zax
Newsgroups: alt.hackers
From: d9mj@crux3.cit.cornell.edu (Scott Coolness)
Subject: Re: Need help from Mac hackers
Organization: Cornell Information Technologies
Date: 20 Nov 92 03:38:34 GMT

kennu@mits.mdata.fi (Kenneth Falck) writes:

>In desperation, I tried simply to read the file into MacWrite
>and Print it, but of course this resulted in the actual PostScript
>code being printed out instead of the contents...

If you get a program called SendPS, that'll send the file as/is to the
printer, or use msword and assign the postscript style to the whole
document. (Postscript style == send it straight)
--
From ALICE IN WONDERLAND by Lewis Carrol:

  So she set to work, and very soon finished off the cake.

Newsgroups: alt.hackers
From: bill@bilver.uucp (Bill Vermillion)
Subject: Re: stupid floppy tricks
Organization: W. J. Vermillion - Winter Park, FL
Date: Mon, 23 Nov 1992 03:45:22 GMT
Keywords: Apple ][ disk drives


In article <1992Nov17.170841.6298@mcs.anl.gov> hoffberg@medusa.aps.anl.gov (Mike G. Hoffberg) writes:

>BTW, why do 5.25" DD disks have hub rings and HD disk don't?  Is it
>done this way so that you can tell them apart?

It's because of the design of the drives.  The original 5.25"
drives were belt driven.   And the motor did not turn on until
you selected the drive.  

The cones and clamping ring could sometimes deform the center
so re-inforcing rings were added.

All 5.25 HD drives are 1/2 height (or less).   All of them spin
the motor on insertion of the disk.  You insert the disk, and
turn the handle.   The spindle comes down toward the disk as it
is moving, and auto-centers the disk on the spindle.  The
clamping is accurately centered.

Because of this HD drives did not have to have disks with
re-inforrcing rings. 

On some early HH drives (720k - actually 740 on the system I
used them on), placing some of the disks that worked in the
old belt drive units would not work in the direct drive 1/2
height units.

The belt driven drives had sufficient torque, partially because
of the reduction via the pulley/belt combo, to overcome disks
that were tight in their jacket, while the 1/2 direct drives
didn't have the torque.

I have one execeptionally OLD 5.25 drive.    It has a hand
number serail number #1046 (if memory serves).  It came from
the 1st run of 1000 proto-type drives that Shugart built and
sent out for evaluation of what was then a new and daring
technology.   So it is from the first run of 1000 5.25 inch
drives that were EVER built.  35 track, SD, and the circuit
board snaps on and off.

I acquired this drive in 1982 or 1983 - and it was about 5 to 6
years old at that time.  I think 1976 was the year that the
5.25 drive came out.

-- 
Bill Vermillion - bill@bilver.oau.org  bill.vermillion@oau.org
                - bill@bilver.uucp 
                - ..!{peora|tous|tarpit}!bilver!bill

Newsgroups: alt.hackers
From: alvin@top.cis.syr.edu (Alvin Leung)
Subject: Re: Cheapo hack.  Kinda, sorta, not.
Organization: Syracuse University CIS Dept.
Date: Sun, 22 Nov 92 15:40:43 EST

In article <1992Nov22.001905.18554@eng.umd.edu>, russotto@eng.umd.edu (Matthew T. Russotto) writes:
|> In article <1992Nov21.070525.3948@tamsun.tamu.edu> scm3775@tamsun.tamu.edu (Sean Malloy) writes:
|> >
|> >Ben Feen writes:
|> >>Anyone ever decoded the DTMF at the beginning of track 8 on _Hack_, entitled
|> >>"Hard Currency"?  I don't have the equipment to do it, and don't feel like
|> >>playing it into a telephone to find out who answers...
|> >
|> >Hmmm...  Well, the "simple" solution to decoding DTMF tones (read: 
|> >doesn't require me to purchase equipment) is to sample the track
|> >and write a program to do a discrete Fourier transform on the
|> >data and look at the frequency spectrum.
|> 
|> Simple?  Come on, use your HEAD, man-- and I mean that literally.
|> You've got a great fourier analysis system, working in real time and
|> parallel processing, built in.  Now, it doesn't return numeric output
|> (at least most people's don't...), but you can use an ordinary
|> telephone and do comparisons.
|> 

   Is not that difficult, if you have a sound card that can sample and a PC.

ObHack:
   This post.  Will it work?

Alvin
  ------------------------------------------------------------------------------

#include <std_disclaimer.h>

aleung@mailbox.syr.edu

Newsgroups: alt.hackers
From: joek@cogs.sussex.ac.uk (Josef Karthauser)
Subject: Re: Stupid Floppy Tricks.
Organization: University of Sussex
Date: Mon, 23 Nov 1992 12:16:06 GMT


> I think Mike meant "why can't you use a high-density disk in a
> low-density drive (and get *low-density* storage on it)".  And he
> was on the right track with the answer; the magnetic coating on
> the HD disk has a much higher remanence (or is it coercivity?)
> which means that the magnetic flux produced by the low-density
> drive heads is too weak to affect it (or at least, too weak to
> make a reliable recording).

I discovered this quite by accident, but what's strange is that on 3 1/2"
disks the problem doesn't seem to exist. The media is interchangable!

ObDiskProtection: Using a 1770 disk chip, putting eleven sectors per track where
the sector numbers were a Z80 program to unscramble the data once it had loaded.
Try writing a Z80 proggie where each eleven bytes had to be different. Quite
convienient really as the first byte, the boot sector, had to be $00 which is a
nop.

*********************************************
* Josef Karthauser  |  joek@cogs.susx.ac.uk *
*********************************************


Newsgroups: alt.hackers
From: mouse@thunder.mcrcim.mcgill.edu
Subject: Re: lucky : -)
Organization: me myself and i
Date: Wed, 18 Nov 92 10:35:40 GMT

>> I had effectivly lost /bin. Jumped into /usr/bin (only other place
>> with binaries). /usr/bin was still there, intact :-).

> Neat hack, but I take it you weren't on a Sun:
> lrwxrwxrwx  1 root     daemon          7 Mar  9  1992 /bin -> usr/bin

Yah, great, isn't it?  Used to be, you needed only one filesystem, and
you could put your system back together.  Now you need two, and you
better have the block device for /usr memorized, 'cause if you lose
fstab, your SOL without that.  (There's not even an fsck in /sbin, so
you can't just try filesystems till you get lucky.)

> On a Sun, because you have still have the Berkeley binaries, you
> could do something like:

> /usr/ucb/more /usr/ucb/which>/usr/ucb/which.safe
> /usr/ucb/compress -c /bin/chmod|/usr/ucb/uncompress>/usr/ucb/which

Why use two different methods to copy files?

Besides, if you've lost the execute bits on /bin, compress will be
unable to look up /bin/chmod.

(ObHack?  What obhack?  Oh, if you insist.  Lessee.  How about adding
break and continue primitives to DaemonMUCK (a version derived from
2.2.8.5d, in case anyone cares).)

					der Mouse

			    mouse@larry.mcrcim.mcgill.edu
Newsgroups: alt.hackers
From: psrjd@acad2.alaska.edu
Subject: Of Mice and Vnews...
News-Software: VAX/VMS VNEWS 1.4-b1  
Organization: University of Alaska, Anchorage
Date: Wed, 18 Nov 1992 21:51:00 GMT

The local powers that be decided that V-News is no longer an acceptable
alternative to ANU News several moons ago.  Given the choice of the to, VNEWS
is the weapon of preference.  (If this post goes through, you know one of the
reasons why.)  A little rooting about found the sources for VNEWS.  After
snagging a copy via FTP, I tried compiling.  Did it work?  Of course not.  I
hadn't suffered appropriately!  Rooting through the compile and link files
found the offender, the program was looking for TWG$COMMON, and the libraries
therein.  No problem, no access.  Go talk to a consultant.  "Sorry, even *I*
don't have access to that!  That's system software!!"  NSS.  TMSIDK.  Back to
square one.

Step two in this tale of woe:  While rooting about one of the books for a
class, I came accross the following instructions:  (VAXen, MACRO mnemonics)
CHME, CHMK, and CHMS.  CHange Mode Executive, CHange Mode Kernel, and CHange
Mode Supervisor.  Nifty!  If I can't get the libs one way, maybe I can get it
another!  (*Grin*)  It just means finishing this particular class...

By now, you should have seen the hole in my methods.  Ask someone who knows. 
20 seconds with someone more knowledgable than my (ignorant) self, and I've got
the name of the disk/directory needed, and the knowledge that it is also open
access.  (Sepuku has its appeal, at times like this.)

OBHack:  Write a program for my HP48SX that takes a matrix apart, writes the
components of the matrix as rational numbers, and return the rational numbers
as lists resembling the form of the matrix.  Unfortunately, the 48 doesn't like
algebraics in a matrix.

Newsgroups: alt.hackers
From: schaker@carina.unm.edu (Stefan Chakerian)
Subject: Re: stupid floppy tricks
Date: Thu, 19 Nov 92 21:08:20 GMT
Organization: University of New Mexico, Albuquerque

>>> OK, for all of you people out there with Apple ][ disk drives, why
>>> don't 5.25" High Density disks work in the drives?
>>
>>Just think about the density of information you're dealing with here.
>>Even if you could produce the proper signals in the write head, you
>>couldn't lay them down on the disk surface accurately enough.  It
>>would be like trying to type by hitting the keys with a basketball.

survey says?   Eeeench.

>I think Mike meant "why can't you use a high-density disk in a
>low-density drive (and get *low-density* storage on it)".  And he
>was on the right track with the answer; the magnetic coating on
>the HD disk has a much higher remanence (or is it coercivity?)
>which means that the magnetic flux produced by the low-density
>drive heads is too weak to affect it (or at least, too weak to
>make a reliable recording).
>
>The opposite also applies; trying to write a low-density floppy
>on a high density drive usually doesn't work well, because the
>field produced by the head is so strong that it alters several
>bits at a time.

If this were true, why can MSDOS read several?  Perhaps it's because
they use different drives, but it draws a good parallel.

I had wondered this a long time ago, and after some digging through
disk specs, came to the conclusion that there are guard tracks between
tracks on floppies.  When you try to use a high density disk, you're
trying to write directly over one of these guard tracks, which is
designed to have poor writing characteristics to avoid bleeding between
tracks.  Of course, I don't have the data to justify this anymore, so
my high-school discovery is certainly open to refutation.

ObHack: converting RDOS programs to ProDOS so I could use my harddrive.
Unfortunately, I never figured out how to rewrite the roms on the
drive to deal with prodos.  Gotta love those corvus drives.  10Mb,
bigger and heavier than the computer itself.

anyone want to buy an old Apple //e?  Tons of software + originals,
10 mb hd, color monitor, 5 drives (4-drive controller, 2 drive controller),
printer + grappler, 1200 bps Apple cat, Z80 card w/wordstar (doubles as
a fast ramdisk), NMI/Reset card, more.  Heavily worn keycaps.
If you order now, i can throw in a mockingboard.

Damn, i wish I had all that money back to spend on a new computer.
It must've cost well over $3000, possible over $5000.  Sonofabitch.

				stef

-- 
    _---_     Stefan Chakerian
   / o o \    schaker@triton.unm.edu, schaker@unmb.bitnet
  | \___/ |   
   \_____/    Have a nice day.  Somewhere else.
From: mark@coombs.anu.edu.au (Mark)
Newsgroups: alt.hackers
Subject: Re: Hackin
Date: 17 Nov 92 09:42:05 GMT
Organization: Australian National University
NNTP-Posting-Host: 150.203.76.2
Organisation: Wassat?!

>Next I hope to get into the protected directories on the Novell file server...

Funny, I just 'cd' to them :)

ObHackForMySanity:

Overlaying the MSDOG environment with as many Unix commands as I could find.
Novell is starting to be nice-ish now. Even got 'man' working thanks to some
perl scripts. 

ObberHackInCaseThatDoesntMeanMuchToYou:

Installing two switches on my old Beeb cabinet so that if I pressed one it
would change the 5 1/4" drive into a 3 1/2" one. Same with the other switch
for the other logical drive position. Even had lights to show which was the
active one. 

(I started with two 5 1/4" and two 3 1/2" drives in case you missed the point)
(And you can only address two drives at once normally)

Mark
From: mjo@slee01.srl.ford.com (Mike O'Connor)
Newsgroups: alt.hackers
Subject: Re: hey y'all
Date: 19 Nov 1992 00:56:32 GMT
Organization: Not an official spokesperson for Ford Motor Co.
Distribution: na
Reply-To: "Mike O'Connor" <mjo@fmsrl7.srl.ford.com>
NNTP-Posting-Host: slee01.srl.ford.com

In article <gilligan.722123168@cs1.bradley.edu> gilligan@cs1.bradley.edu (Edward Henigin) writes:

:I went into one of the applications on the menu, at random (I picked 
:Lotus 123) and forked a shell to dos, where I typed the data files
:for the menu program.  The passwords were there, not even encrypted.

When I was an academic systems programmer...  <sigh>

I loved pointing COMSPEC to a program that ran a nice program that
informed them that the "automatic virus detection software" has
"detected a virus of unknown origin" on their PC and that the hard
drive was to be formatted.  Got quite a few people riled up.  :)

Those were the days.

						...Mike

--
 Michael J. O'Connor           |  Internet:  mjo@FMSRL7.SRL.FORD.COM
 Ford Motor Company, OPEO      |  UUCP:      ...!{backbone}!fmsrl7!mjo
 20000 Rotunda, Bldg. 1-3001   |  Phone:     +1 (313) 248-1260
 Dearborn, MI  48121           |  Fax:       +1 (313) 323-6277