What is DNS :An Introduction

You type a web address – say www.facebook.com – in the web browser, your computer queries a DNS server to find the corresponding IP address where that site is located and once it has that information, it routes your browser to the correct website.

That is a simplified definition of DNS but, behind the scenes, several parties could get involved as soon as your computer asks for the IP address of a domain name. There’s the Resolving Name Server, the Root Name Server, the TLD Name Server and finally the Authoritative Name Server.

Confused? You don’t have to be as here’s an informative short video that explains the entire DNS workflow in simple English.



Even if you know the basics of DNS, do watch this video and you might end up learning a couple of new concepts around DNS and how it works. The video is courtesy learnDNS.com.

Speaking of DNS, do check our previous tutorials on setting up OpenDNS, Google DNS, learn how to compare two DNS services and know about scenarios when you should not change your DNS server and let it point to your ISP’s default DNS server.

Tip: Find the Name Servers of a Web Domain
If you would like to know about the Authoritative Name Server of any web domain, the one that will most definitely know the location of the IP address of that domain, follow these steps.

Open the command prompt windows by typing CMD in the Windows Run box.
On the command prompt, type NSLOOKUP and hit Enter.
Now type set querytype=soa without the quotes and hit Enter. Sentence case matters and there should be no extra spaces.
Finally type any domain name and in the results, the primary name server is the authoritative name server of that domain.

What is HTML5 :An introduction

HTML5 is a language for structuring and presenting content for the World Wide Web, and is a core technology of the Internet originally proposed by Opera Software.It is the fifth revision of the HTML standard (created in 1990 and standardized as HTML4 as of 1997)and as of March 2012 is still under development. Its core aims have been to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). HTML5 is intended to subsume not only HTML 4, but XHTML 1 and DOM Level 2 HTML as well.
The remaining doubts can be cleared by this image what new things HTML5 has to offer.

Hands-On: Twitter’s New Photo-Sharing Service

Twitter has begun rolling out its new photo-sharing feature to the masses.

The new Twitter photo service, which replaces the functionality provided by TwitPic, Yfrog and other photo-sharing services, is part of both Twitter’s photo and video revamp and Twitter’s new integration deep within Apple iOS 5. The photo feature is powered by Photobucket, a fact that is impossible to miss on tweets using the new Twitter feature.

I took Twitter’s new photo-sharing feature for a quick test drive. Check out the pics and let me know in the comments if you can access this new feature yet:

Mozilla Firefox Mobile WAP Browser – Coming soon for Mobile Phone Download

When it’s about Mobile internet browsing Opera Mini is widely used as a wap browser worldwide. Now, there is a good news for Firefox Likers. Mozilla Firefox is working hard these days to come up with their Mobile browser version. As a beta version, it is currently available for Nokia N900.
Download Firefox for mobile:

Visit Firefox.com/m on your Nokia N900
Download Firefox 1.1 beta:

Visit Firefox.com/m/beta on your Nokia N900

The version is able to encrypt all the information a user receives and sends it back through the cloud. Also it can sync with the desktop version of the browser.

Also Mozila which is considered to be the parent company of Firefox, is developing versions for Google’s Android as well as Microsoft’s Windows operating systems.

Those who have, iPhones and want to have Firefox on their desktop, they will have to wait a bit, as the company has to synchronize their desktop.

But still Opera is considered to be the most popular mobile browser at present. It is available for many mobile handsets.

Features: Firefox, a well known browser, is preparing to unveil its version for mobiles. Jay Sullivan who was in charge of the project said that the mobile version underwent various tests and would be launched by the end of the year. He also added a user would not have to sit in the evening and work on their PC, instead he would be able to walk. In case he received some urgent documents that he had to read there would be no necessity to back home and check his e-mail, as his mobile would be equipped withFirefox mobile version.

It’s built on the same engine as the desktop Firefox 3.6 and is packed full of familiar features. Watch the video to see how you’ve helped us get here and where we’re going next.

Facebook Adds Skype Video Chat Feature

Facebook has announced a partnership with Skype to add video chat to the social networking site.

The move is likely to be seen as a shot across the bow of Google, which recently launched a Facebook rival, Google+, also featuring video calling.

This is not the first time Facebook and Skype have teamed up – they already share some instant messaging tools.
Skype is in the process of being bought by Microsoft, which is a major shareholder in Facebook.

The new video-call service was launched by Facebook founder Mark Zuckerberg, who also revealed that the site now had more than 750 million users.
However, he said that the total number of active users was no longer a useful measure of the site’s success.

Instead, the amount of sharing – of photographs, videos and web links – was a better indication of how people engaged with the site, explained Mr Zuckerberg.

At launch, Facebook’s video chat service will only be able to connect two users face-to-face, whereas Google’s system allows group video calls, known as Hangouts.

Mark Zuckerberg: “This type of thing is only possible because of the social infrastructure that already exists”

Source:http://www.techpark.net

My Personal Top 10 Hacking softwares

There have been a lot of tools floating around the web who claim to be the best in their respective fields.
I have used many hacking tools that are built for both windows and linux platform and have seen that the linux tools are far more powerful than the windows tools. Keeping this thing in mind i thought to compile my list to those softwares that work well for both the platform and perform similar features.
The list has some new names compared to those in last years blog. I have also provided a download link of all the ten softwares compiled in a single zipped file to ease the downloading.

1.Nmap

Nmap ,by far is the best security scanning and hacking tool ever made. This software tops every list of top hacking softwares for its two reasons. Firstly,its ease of use and secondly,its wide usage.
It provides a wide range of features like port scanning, fingureprinting, os detection , ping , scanning an IP range , alive hosts etc. It has a rich command mode for advanced users which can combine several commands together to execute ones. Its the most recomended tool for new as well as advanced learners and security experts. It hosts its google opensource project every year. Download the zip.

2.SuperScan

Powerful TCP port scanner, pinger, resolver. SuperScan 4 is an update of the highly popular Windows port scanning tool, SuperScan. If you need an alternative for nmap on Windows with a decent interface, I
suggest you check this out, it’s pretty nice. It provides a cool scanning experience with lot of information displayed .Downlaod the zip

3.Cain and Abel

My personal favourite for password cracking of any kind.
Cain & Abel is a password recovery tool for Microsoft Operating Systems. It allows easy recovery of various kind of passwords by sniffing the network, cracking encrypted passwords using Dictionary, Brute-Force and Cryptanalysis attacks, recording VoIP conversations, decoding scrambled passwords, revealing password boxes, uncovering cached passwords and analyzing routing protocols.
The program does not exploit any software vulnerabilities or bugs that could not be fixed with little effort.Download The Zip


4.John The Riper

This is my personal favourite password cracking which has been in the market for over a decade and it has evolved into a powerful tool because of the special effort of the open source community.John the Ripper is a fast password cracker, currently available for many flavors of Unix (11 are officially supported, not counting different architectures), DOS, Win32, BeOS, and OpenVMS. Its primary purpose is to detect weak Unix passwords. Besides several crypt(3) password hash types most commonly found on various Unix flavors, supported out of the box are Kerberos AFS and Windows NT/2000/XP/2003 LM hashes, plus several more with contributed patches. Download the zip

5.fsCrack

FSCrack is a front end for John the Ripper (JtR) that provides a graphical user interface (GUI) for access to most of JtR’s functions.It increases the functionality of JTR and provides a detailed report of password cracking . The working is similar to JTR by using the SAM file of windows to crack the admin password. Download the zip

6.Nessus Security Scanner

This tool has been the best tool for both network administrators and hackers because of its wide implimentation.The Nessus® vulnerability scanner is the world-leader in active scanners, featuring high-speed discovery, configuration auditing, asset profiling, sensitive data discovery and vulnerability analysis of your security posture. Nessus scanners can be distributed throughout an entire enterprise, inside DMZs and across physically separate networks. Download the zip

7.Wireshark

Wireshark is a GTK+-based network protocol analyzer, or sniffer, that lets you capture and interactively browse the contents of network frames. The goal of the project is to create a commercial-quality analyzer for Unix and to give Wireshark features that are missing from closed-source sniffers. Works great on both Linux and Windows (with a GUI), easy to use and can reconstruct TCP/IP Streams!. Download the zip

8.Live Bulk Mailer

Live bulk mailer has the ability to still deface the spam filter of gmail,hotmail and yahoo. Its an email flooding tool that allows the attacker to send desired number of bulk mails to the victim inbox and flood it completely. This can be an annoying task and can also put you into trouble so before using this tool dont forget to use a proxy server to hide your IP address. Download the zip

9.Website Digger
Website digger is a tool that helps you to digg into a website and gain information about the host by applying whois query and also banner grabbing capability. This tool is useful while defacing a webpage. Download the zip

10.PuTTY

PuTTY is a free implementation of Telnet and SSH for Win32 and Unix platforms, along with an xterm terminal emulator. A must have for any h4. 0r wanting to telnet or SSH from Windows without having to use the crappy default MS command line clients.
Download the zip