Installing the Madwifi drivers for Ubuntu
Operating Systems
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WARNING: This is a very dry and dull article, reading this could cause bordom to the point of coma, read at your own risk!!
Ok, well after I got Ubuntu up and running I had a little problem, Ubuntu didn't recognize my wireless card! So what was a guy to do? Of course I got on another computer and googled it, I came across many different tutorials and other documents on installing the drivers but they were so confusing, I wound up spending all day and night trying to get it working, then I finnaly figured it out (no thanks to the readme), so to try and save you all the hassle I decided to write this little "tutorial".
Here we go...
Ok, first thing's first, you have to download the drivers and make sure you have all the build essentials to install them. The drivers that I managed to get working, and the drivers this tutorial is based on are the madwifi drivers for Atheros cards.
Open up a console and type in the following:
It should ask for your root password, and t... View In Full
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Uploading Files [php]
Programming
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PHP as you all know is a very powerful and yet fairly loose language, however one of it's very usefully abilities is the ability to upload files. PHP can upload literally any type of file you allow it to. However this can also open up many holes for many exploits, which is why we'll also cover some basic security along with uploading the files.
Where shall we start? How about at the very beginning, how are you going to upload files without a form to upload them from?
First I'll show you an example:
Now, I'm assuming you have basic knowledge of HTML, however one of the parts of this you may not have yet seen is:
enctype="multipart/form-data"
This part, although rather large and seemingly unnecessary, is required to upload files as it tells the View In Full
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6.67 out of 10 |
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Secure Hashing
Security
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Note: Examples used in this article are in PHP
Many developers believe in the practice of securing passwords and other financial data using a hash function (a function of turning some kind of data into a small number that may serve as a digital "fingerprint"). However just hashing a password isn’t enough it may still be bruteforced and as usernames and passwords are determined by the users not all will meet minimum secure levels so it is up to the developer to pick up where they leave off.
Many developers use hashes such as MD5 however very good this also has it’s flaws as it is only a 128-bit digest (encryption) it is far less secure then say the SHA1 hash which is a 160-bit digest. To cover for this many use something called “salts” which are random characters appended to the data before it is encrypted which would make it harder to brute-force. Even though salting the data is a great method of protection there is still more we can do.
Combining different message digest... View In Full
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2 Comments |
7.00 out of 10 |
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Module Development guide for Derangedminds
Web Development
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Please do not rate this article as it has yet to be completed, however if you have any comments on it feel free to submit them.
Introduction
This document was created in order to be a guide for users to create their own modules and submit to an administrator for consideration of being placed on the site. This guide was made with the assumption that you have some moderate PHP, MySQL, and HTML knowledge.
Globals
string SNAME (DerangedMinds.net)
SNAME contains the value of the site name, by default the value “DerangedMinds.net” is assigned.
string SURL (http://www.derangedminds.net)
SURL contains the site url without the ending slash, this must not contain an ending slash due to possible errors. By defualt the value “http://www.derangedminds.net” is assigned.
string DEF_STYLE (default.css)
DEF_STYLE contains the default CSS file (contains site formatting along with the template files) for the site, the default value is “default.css”.
int SITE_ON (1)
S... View In Full
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Building your own Touch Panel
Design & Creativity
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I’m sure you all know what a touch panel is, those little things where when you touch them they react to you by displaying something on the screen, or moving something on a computer, etc. Well if you’re like me then you would love to have your own home-made touch pad ;p Well here I’ll show you how to make one. But first, it’s best if you actually know what it is and what it does.
There are many different types of touch panels, such as: Camera Vision (Machine Vision), RFID, Beam Array, etc. Today we will be making a Camera Vision Display, these work by sending light rays through a transparent surface such as glass or plastic and when you touch the “screen” it sends scattered light rays downward which are detected by a camera then processed by computer software such as VVVV (which we’ll be using today). Once the light is processed by the computer a projector can project an image back on the screen to produce output. Since this type of panel is sensitive to IR (Infrared) waves this c... View In Full
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1 Comments |
8.00 out of 10 |
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Various methods for Disabling UAC on Vista
Operating Systems
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Below are various methods to deactivate UAC on Windows Vista
Method #1
Ok anyone that uses Vista knows what UAC is (User Account Control) it's that annoying little thing that pops-up whenever you try to edit a file or play a game, or do anything for that matter! Now if you're like me you got sick of it a while ago (or maybe you just got vista?) and have already googled how to disable it. Now I don't know about you but everything that I've came across told me to find something called "secpol.msc" or "Search for UAC" well I searched and searched but couldn't find anything on my computer so I decided to look through the registery and after about 15 minutes I found the key!
To disable it all you have to do is find the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA
Now right click on that key and choose "Modify" change the 1 to a 0 and save the changes! That's it! Now no more annoying popup everytime you know what you... View In Full
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0 Comments |
8.00 out of 10 |
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Creating Secure Passwords
Security
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SecurePasswords
Passwords are the most basic types of security. Althout it is a very simple method a password can make or break a system. To use this authetication method succesfully and efficiently you will need to put secure guidelines in place.
To create a secure password it cannot be short. For Example: A four character password is easier to guess and/or bruteforce than a 16 character password.(although many sites have methods to prevent or hinder bruteforceing such as CAPTCHA images) Always try and keep passwords at a minumum of 12 characters. This will ensure the password is at least partly secure (as for as the length goes).
However just because a password is long doesn’t mean it’s secure. For Example: If you lock all the windows but leave your doors wide open is your house secure? NO! You will also want to throw a few numbers in there. Secure passwords ALWAYS have at least one number and one letter. These are called alphanumberic (big word huh?). Say you have... View In Full
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8.40 out of 10 |
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