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How To: Hack UnrealIRCd Using Python Socket Programming

UnrealIRCd is an open-source IRC server that has been around since 1999 and is perhaps the most widely used one today. Version 3.2.8.1 was vulnerable to remote code execution due to a backdoor in the software. Today, we will be exploiting the vulnerability with Metasploit, examining the underlying code to understand it, and creating our own version of the exploit in Python.

How To: Create Packets from Scratch with Scapy for Scanning & DoSing

By using almost any packet-crafting tool, a hacker can perform denial-of-service (DoS) attacks. With the power to create just about any packet with any characteristics, a hacker can easily find one that will take down a host or network. Nmap and Hping are effective packet manipulation tools, but there's also Scapy, which is almost infinitely customizable.

How To: Use Maltego to Target Company Email Addresses That May Be Vulnerable from Third-Party Breaches

The easiest way around a security policy is to find users who don't follow it. The Have I Been Pwned database identifies accounts with information breached by major third parties like Yahoo and LinkedIn. With Maltego, hackers can locate breached accounts created using company email addresses, potentially giving attackers access to a company account if the employee reuses a compromised password.

News: Thieves Using GPS Apps

This is just a heads up that thieves are now using GPS fitness apps to target people. Thieves are using popular GPS fitness apps such as Strava to find out where you live where they will then come and steal your bikes.

How To: Tone Your Waistline

In this how to video, I discuss three different exercises that have really helped me to tone my waistline. Although you cannot specifically target different fat deposits while dieting, it is still important to perform these exercises to give your core and waist that aesthetic look. These exercises have given me great results, but a solid diet and a good training program is also extremely important to sculpting your body. Enjoy!

How To: Show up on Google results in the right country, wherever your server

Google is the biggest and best search engine on Earth, and if you are a webmaster and want your website to be a big success it would really behoove you to know as much about how it works as possible. The Google Webmasters series of videos and website were created to teach webmasters, SEO professionals, and others how Google works by answering their questions and giving them insights into how they can best integrate and utilize Google's functionality to improve their business. This video will ...

How To: Graph a rational function using limits

Need help figuring out how to graph a rational function with limits? Learn how to graph a rational function using limits to find discontinuities and functional asymptotes with this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).

How To: Correct colors in photos with Photoshop CS3

Need to color correct your photos and you're not sure how? In this video, the basics of RGB and CMYK colors are discussed as well as how to use them to color correct everything from everyday snapshots to portrait photographs. By using the eyedropper and the info palette to read the colors in the photos, you can then color correct. Based on the CMYK read out of the color sample targets, you can then adjust the color channels using a curves adjustment to achieve the kind of colors you'd like. A...

How To: Do a killer upper chest workout

First of all you have to understand that this exercise is very versatile and you can actually target different areas of your chest just by twisting your wrists. First of all lie down on the bench and hold the dumbbells in your hands. You can do this upper chest exercise to build your upper chest muscles using dumbbells. Now bring your dumbbells down and then again take them up. While bringing your dumbbells you have to twist your wrists towards inside such that your palms are facing away from...

How To: Count data without an upper limit in Microsoft Excel

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 198th installment in their series of digital spreadsheet magic tricks, you'll learn three different methods for counting quantitative data in categories that include a lower limit but not an upper limit.

How To: Flash the Benq VAD6038 Xbox 360 DVD drive

In this Video Games video tutorial you are going to learn how to flash the Benq VAD6038 Xbox 360 DVD drive. This video will show how to do this with the connectivity kit and the jungle flasher. You will need a compatible card for this. VIA 6421a SATA PCI card is probably the best card. Install the VIA card and make the connections as shown in the video. Before you power on the connectivity kit, install the port IO 32 drivers and also the USB drivers for the connectivity kit if you are using U...

How To: Throw a cast net the right way

First, you have to lay down your net and bundle up the rope in one hand like an extension cord all the way up to the net. Hold the net in the same hand, and grasp the rim of the net with the other hand. When you want to throw the net, grab the net midway with the rim in the other hand, and throw it towards your target with some spin, so the net lands flat on the water. If the net landed properly, it should sink slowly to the bottom, trapping some fish underneath it. To retract the net, simply...

How To: Do Sumo squats

In this video tutorial, viewers learn how to perform a sumo squat. It is the same as a regular squat, except the legs are extended more wider. The bar should be setup a little bit below your shoulder level. Go into a split stance when picking up the bar. Keep your core muscles tight and keep the bar stabilized. Spread the legs wide, pass the shoulder width. This exercise target the leg muscles and helps strengthen them. Inhale when going up and exhale when going down. This video will benefit ...

How To: Use the siva count card sleight for many card tricks

In this video tutorial, viewers learn how to perform the Siva count sleight card trick. This sleight card trick is very similar to the Elmsley, except it is a reversal. It reveals the cards instead of facing them down. This sleight uses 5 cards, but only reveal 4 of them. It hides the target card. The card that you want to hide needs to be in he middle (3rd card). When going through each card, users have to double drop the card and not allow the spectator to see the hidden card. This video wi...

How To: Build massive chest muscles with the dumbell press

If you're tired of getting sand kicked in your face at the beach because of your tiny chest muscles then the dumbell press exercise is for you. This professional tutorial demonstrates the simple workout that can build up your pectoral muscles in a healthy manner. The dumbell bench press is an awesome functional, athletic movement for you athletes. You will work the target muscle better by visualizing the target muscle. Go slow (a 3-1-3 tempo), and visualize that you are squeezing water out of...

How To: Calculate a limit by getting a common denominator

This video explores how to get the limit by getting a common denominator. When you try and plug in a limit, for example when the denominator goes to zero, you can get yourself into a situation where you get the answer (0/0) which is mathematically irrelevant. To solve this problem, you must find a common denominator and split the problem up into its various parts. By setting common denominators in the numerator, you can then flip the fraction around allowing you to properly calculate the limi...

How To: Adjust a rear derailleur using the limit screws

This video explains how to adjust a rear derailleur using the limit screws in a bicycle. There is a limit screw which has low and high gear. When the limit screw is turned in, the pulley moves inboard and when turned out, it moves the other way. The derailleur moves along with the inboard. When turned in, it travels with the inboard and holds the chain. Care should be taken not to turn much deeper as the derailleur might throw the chain off. The viewer will get some useful information upon wa...

How To: Understand the central limit theorem

Central limit theorum is easily one of the most fundamental and profound concepts in statistics and perhaps in mathematics as a whole. In probability theory, the central limit theorum (CLT) states conditions under which the mean of a suffiently large number of independent random large variables (each with finite means and variance) will be normally distributed, approximately. Huh? If you are having trouble understanding central limit theorum and need help trying to solve it, check out this tu...

How To: Add and subtract complex numbers

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

How To: Find real and imaginary parts of a complex number

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

How To: Divide complex numbers

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

How To: Use imaginary numbers and quadratic equations

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

How To: Write the square root of a negative complex number

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

How To: Multiply complex numbers

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

How To: Represent complex numbers with the Argand Diagram

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.

How To: Find the complex conjugate of a complex number

Need a little help with your math homework? No problem, the Math Centre offers students video tutorials that will provide as a reference guide for self-study. Students get self-study resources targeted to the needs of individual courses, and teachers gain generic mathematics support and study materials for use with students.