10 Puzzle Websites to Sharpen Your Programming Skills. Solving programming puzzles is a fun way to develop your logical and problem solving abilities. Also, when you’re familiarizing yourself with a new programming language, solving puzzles for that language can help speed up the learning process. Here are the top 10 popular programming puzzle sites that will help test your thinking and improve your programming, problem solving, and logical thinking skills. 1. Programming Praxis Programming Praxis is a blog that includes a range of interesting problems with solutions usually available in several different programming languages. 2.
CodeKata is a blog of programming puzzles written by Dave Thomas, who’s most famous for the groundbreaking book, Pragmatic Programmer. 3. TopCoder is an active programming community of developers who love to solve puzzles. 4. 5. Facebook has a collection of very challenging programming puzzles that–should you manage to solve them–could result in you getting a job at Facebook! 6. 7. 8. 9. 10. 99 Prolog Problems. Chat with Your Friends through ms dos Command Prompt. -: Chat with Friends through ms dos Command Prompt :- 1) All you need is your friend's IP Address and your Command Prompt. 2) Open Notepad and write this code as it is.....! @echo off :A Cls echo MESSENGER set /p n=User: set /p m=Message: net send %n% %m% Pause Goto A 3) Now save this as "Messenger.Bat". 4) Open Command Prompt. 5) Drag this file (.bat file) over to Command Prompt and press Enter. 6) You would then see something like this: 7) Now, type the IP Address of the computer you want to contact and press enter You will see something like this: 8) Now all you need to do is type your message and press Enter.
ShareThis. Aho/Ullman Foundations of Computer Science. This book has been taken out of print by W. H. Freeman. You are welcome to use it if you like. We believed in 1992 it was the way to introduce theory in Computer Science, and we believe that today. --- Al Aho and Jeff Ullman Index The Book | Materials | Gradiance | Errata PDF's of the Book PrefaceTable of ContentsChapter 1 Computer Science: The Mechanization of Abstraction Chapter 2 Iteration, Induction, and Recursion Chapter 3 The Running Time of Programs Chapter 4 Combinatorics and Probability Chapter 5 The Tree Data Model Chapter 6 The List Data Model Chapter 7 The Set Data Model Chapter 8 The Relational Data Model Chapter 9 The Graph Data Model Chapter 10 Patterns, Automata, and Regular Expressions Chapter 11 Recursive Description of Patterns Chapter 12 Propositional Logic Chapter 13 Using Logic to Design Computer Components Chapter 14 Predicate Logic Index Supplementary Materials Gradiance Package Available Errata Sheet We are going to try to maintain errata.
How to Turn Your PlayStation 3 Into a Linux PC. (Photograph by Jeffrey Westbrook/Studio D) The Cell processor inside Sony's PlayStation 3 is a powerhouse that lets the gaming console render highly detailed graphics at blistering speed. That same chip gives the PS3 all the processing muscle it needs to become a fully functional computer. When we first heard this was possible, we were sure the procedure had to be illegal, or that it would at least void the warranty. But as it turns out, this is that rarest of finds in consumer electronics: a perfectly legal, manufacturer-supported hack that adds significant functionality. Step 1: Back Up Sony hardly walks people through the conversion process—you've got to know where to look in the PS3's menus, and many of the steps can be a bit tricky. Step 2: Upgrade Your Drive PlayStation 3 ships with either a 40 or 80 GB drive. The drive is located behind a small removable panel on the side of the PS3 and can be replaced without too much muss and fuss.
Step 3: Install Your New OS. Access Any Website Or Forum Without Registering. Visit any forum or website to find something useful and they will ask you to register. Every time a forum asks me to register, I simply close the site. You would probably do the same. But this time, lets face it. Before I begin, you should know how things work.
First grab the add-on for Firefox called ‘user agent’ here and install it. Select User Agent from the left sidebar and click Add. Crawl-66-249-66-1.googlebot.com and in user agent field type: Googlebot/2.1 (+ as shown in the screenshot below. Select Google Bot as your User Script by going to Tools > User Agent Switcher. Now browse any website or forum without registering. Advertisement. Firesheep.
The extension was created as a demonstration of the security risk of session hijacking vulnerabilities to users of web sites that only encrypt the login process and not the cookie(s) created during the login process.[3] It has been warned that the use of the extension to capture login details without permission would violate wiretapping laws and/or computer security laws in some countries. Despite the security threat surrounding Firesheep, representatives for Mozilla Add-ons have stated that it would not use the browser's internal add-on blacklist to disable use of Firesheep, as the blacklist has only been used to disable spyware or add-ons which inadvertently create security vulnerabilities, as opposed to attack tools (which may legitimately be used to test the security of one's own systems).[4] Note that even if they did, it wouldn't actually prevent anyone from using Firesheep, as Firefox contains a hidden setting to disable this blacklist.[5] Countermeasures[edit] HTTPS[edit]
Know the Trade – Your IT Security Information Portal CISSP/CEH/CISA/Hacker and Penetration Testing Specialist. Google Hacking allintitle:Brains, Corp. camera allintitle:"index of/admin" allintitle:"index of/root" allintitle:restricted filetype:doc site:gov allintitle:restricted filetype :mail allintitle:sensitive filetype:doc allinurl:/bash_history allinurl:winnt/system32/ (get cmd.exe) ext:ini eudora.ini ext:pwd inurl:(service|authors|administrators |users) "# -FrontPage-" filetype:bak inurl:"htaccess|passwd|shadow|htusers" filetype:conf slapd.conf filetype:ctt "msn" filetype:mdb inurl:"account|users|admin|administrators|passwd|password" filetype:mdb inurl:users.mdb filetype:QDF QDF filetype:pdf "Host Vulnerability Summary Report" "Assessment Report" filetype:sql ("passwd values ****" | "password values ****" | "pass values ****" ) filetype:xls inurl:"email.xls" filetype:user eggdrop user intitle:"Apache::Status" (inurl:server-status | inurl:status.html | inurl:apache.html) intitle:"Welcome to IIS 4.0!
" These log files record info about the SSH client PUTTY.