Saturday 9 June 2012

NAMES OF FREE ONLINE STORAGE WEBSITES

IS YOUR HARD DISK FULL
DON'T WORRY STORE DATA ONLINE FOR FREE

1) Windows Live SkyDrive : Windows Live SkyDrive which debuted as Windows Live Folders also offers a pretty good amount of 25GB storage space. It’s more reliable and secured. You have to sign up using your Windows Live Id or Hotmail Id. the best part of it is you can access files from your mobile device as well as you can compress and download all your files as a compressed archive. The files can also be specified as public or private with links for sharing as well.

2) Google : Google’s various services like mail docs and Picasa together contribute to have a storage space of about 10 GB which is constantly increasing. By installing a simpleextension we can use 7.5 GB Google’s email space as Hard Disk in our PC. Just install it and follow the instructions given and will show up as a separate hard disk in My Computer. very easy to use
 
3) Adrive : Adrive is another online file storage service with a whopping 50 GB of free storage and can extended to 10 TB with payment.
 
4) Dropbox : Dropbox can be used as client side software on our PC which offers 2 GB of online storage. Just install the software and drag and drop files to upload. The software will automatically upload all of your files when the computer is idle. The transmission of file data occurs over an encrypted channel (SSL) and all files are encrypted which is an added bonus. It even works with all major mobile platforms. good one
 
5) Amazon cloud Drive : If you just want a virtual drive for uploading videos, music docs or photos, you can use the Amazon Cloud drive. Your files can be neatly classified into categories in pre-existing folder structures and the service offers 5 GB of free space. However, files above 2 GB in size cannot be uploaded.

6) Others : Although I have listed only the major services here there are plenty of others too like Mozy, 4shared, Esnips, SafeSync, etc.

REMOVE PDF FILES PASSWORD

There’s a free Windows utility called BeCyPDFMetaEdit

that can help you remove passwords from PDF files but

without make any other change to the document. DOWNLOAD THE UTILITY.
Here’s what you need to do:

1. Launch the program and it will ask your for the location

of the PDF file.

2. Before you select and open the PDF, change the mode

to “Complete Rewrite.”

3. Switch to the Security tab and set the “Security System”

to “No encryption.” Click the Save button and your PDF

will no longer require a password to open.

WEBCAM TRICK


 Here’s a trick that will blow your mind. You can get access to all open public webcams through Google. There are many tricks by which one may get accessed to all the webcams running currently at a particular position and at particular time. However the Google Webcam trick seems to be one the easiest. Here are a simple few steps by which one may do the same.

Step 1: Log on google.com

Step 2: Type ‘inurl:/view.shtml’ as a query

Step 3: You may also try using intitle:”Live View / – AXIS” | inurl:view/view.shtml^ as a query.

Step 4: This would redirect you to a page with the home pages of these urls.

Step 5: The above query reveals the IP network webcams that have been indexed by Google. You can easily get access and locate those unprotected IP network cameras used that are released or leaked to the public internet insecure cameras by using Google.

Thursday 7 June 2012

BEST HACKERS OF ALL TIME 




IN THIS POST I AM GOING TO TELL YOU ABOUT SOME GREAT HACKERS

Black Hat

The Internet abounds with hackers, known as "black hats," who work to exploit computer systems. They are the ones you've seen on the news being hauled away for cybercrimes. Some of them do it for fun and curiosity, while others are looking for personal gain. In this section we profile five of the most famous and interesting "black hat" hackers.

    Jonathan James:- James gained notoriety when he became the first juvenile to be sent to prison for hacking. He was sentenced at 16 years old. In an anonymous PBS interview, he professes, "I was just looking around, playing around. What was fun for me was a challenge to see what I could pull off."

    James's major intrusions targeted high-profile organizations. He installed a backdoor into a Defense Threat Reduction Agency server. The DTRA is an agency of the Department of Defense charged with reducing the threat to the U.S. and its allies from nuclear, biological, chemical, conventional and special weapons. The backdoor he created enabled him to view sensitive emails and capture employee usernames and passwords.

    James also cracked into NASA computers, stealing software worth approximately $1.7 million. According to the Department of Justice, "The software supported the International Space Station's physical environment, including control of the temperature and humidity within the living space." NASA was forced to shut down its computer systems, ultimately racking up a $41,000 cost. James explained that he downloaded the code to supplement his studies on C programming, but contended, "The code itself was crappy . . . certainly not worth $1.7 million like they claimed."

    Given the extent of his intrusions, if James, also known as "c0mrade," had been an adult he likely would have served at least 10 years. Instead, he was banned from recreational computer use and was slated to serve a six-month sentence under house arrest with probation. However, he served six months in prison for violation of parole. Today, James asserts that he's learned his lesson and might start a computer security company.

    Adrian Lamo:- Lamo's claim to fame is his break-ins at major organizations like The New York Times and Microsoft. Dubbed the "homeless hacker," he used Internet connections at Kinko's, coffee shops and libraries to do his intrusions. In a profile article, "He Hacks by Day, Squats by Night," Lamo reflects, "I have a laptop in Pittsburgh, a change of clothes in D.C. It kind of redefines the term multi-jurisdictional."

    Lamo's intrusions consisted mainly of penetration testing, in which he found flaws in security, exploited them and then informed companies of their shortcomings. His hits include Yahoo!, Bank of America, Citigroup and Cingular. When white hat hackers are hired by companies to do penetration testing, it's legal. What Lamo did is not.

    When he broke into The New York Times' intranet, things got serious. He added himself to a list of experts and viewed personal information on contributors, including Social Security numbers. Lamo also hacked into The Times' LexisNexis account to research high-profile subject matter.

    For his intrusion at The New York Times, Lamo was ordered to pay approximately $65,000 in restitution. He was also sentenced to six months of home confinement and two years of probation, which expired January 16, 2007. Lamo is currently working as an award-winning journalist and public speaker.

    Kevin Mitnick:- A self-proclaimed "hacker poster boy," Mitnick went through a highly publicized pursuit by authorities. His mischief was hyped by the media but his actual offenses may be less notable than his notoriety suggests. The Department of Justice describes him as "the most wanted computer criminal in United States history." His exploits were detailed in two movies: Freedom Downtime and Takedown.

    Mitnick had a bit of hacking experience before committing the offenses that made him famous. He started out exploiting the Los Angeles bus punch card system to get free rides. Then, like Apple co-founder Steve Wozniak, dabbled in phone phreaking. Although there were numerous offenses, Mitnick was ultimately convicted for breaking into the Digital Equipment Corporation's computer network and stealing software.

    Mitnick's mischief got serious when he went on a two and a half year "coast-to-coast hacking spree." The CNN article, "Legendary computer hacker released from prison," explains that "he hacked into computers, stole corporate secrets, scrambled phone networks and broke into the national defense warning system." He then hacked into computer expert and fellow hacker Tsutomu Shimomura's home computer, which led to his undoing.

    Today, Mitnick has been able to move past his role as a black hat hacker and become a productive member of society. He served five years, about 8 months of it in solitary confinement, and is now a computer security consultant, author and speaker.

    Kevin Poulsen:- Also known as Dark Dante, Poulsen gained recognition for his hack of LA radio's KIIS-FM phone lines, which earned him a brand new Porsche, among other items. Law enforcement dubbed him "the Hannibal Lecter of computer crime."

    Authorities began to pursue Poulsen after he hacked into a federal investigation database. During this pursuit, he further drew the ire of the FBI by hacking into federal computers for wiretap information.

    His hacking specialty, however, revolved around telephones. Poulsen's most famous hack, KIIS-FM, was accomplished by taking over all of the station's phone lines. In a related feat, Poulsen also "reactivated old Yellow Page escort telephone numbers for an acquaintance who then ran a virtual escort agency." Later, when his photo came up on the show Unsolved Mysteries, 1-800 phone lines for the program crashed. Ultimately, Poulsen was captured in a supermarket and served a sentence of five years.

    Since serving time, Poulsen has worked as a journalist. He is now a senior editor for Wired News. His most prominent article details his work on identifying 744 sex offenders with MySpace profiles.

    Robert Tappan Morris:- Morris, son of former National Security Agency scientist Robert Morris, is known as the creator of the Morris Worm, the first computer worm to be unleashed on the Internet. As a result of this crime, he was the first person prosecuted under the 1986 Computer Fraud and Abuse Act.

    Morris wrote the code for the worm while he was a student at Cornell. He asserts that he intended to use it to see how large the Internet was. The worm, however, replicated itself excessively, slowing computers down so that they were no longer usable. It is not possible to know exactly how many computers were affected, but experts estimate an impact of 6,000 machines. He was sentenced to three years' probation, 400 hours of community service and a fined $10,500.

    Morris is currently working as a tenured professor at the MIT Computer Science and Artificial Intelligence Laboratory. He principally researches computer network architectures including distributed hash tables such as Chord and wireless mesh networks such as Roofnet.

White Hat

Hackers that use their skills for good are classified as "white hat." These white hats often work as certified "Ethical Hackers," hired by companies to test the integrity of their systems. Others, operate without company permission by bending but not breaking laws and in the process have created some really cool stuff. In this section we profile five white hat hackers and the technologies they have developed.

    Stephen Wozniak:- "Woz" is famous for being the "other Steve" of Apple. Wozniak, along with current Apple CEO Steve Jobs, co-founded Apple Computer. He has been awarded with the National Medal of Technology as well as honorary doctorates from Kettering University and Nova Southeastern University. Additionally, Woz was inducted into the National Inventors Hall of Fame in September 2000.

    Woz got his start in hacking making blue boxes, devices that bypass telephone-switching mechanisms to make free long-distance calls. After reading an article about phone phreaking in Esquire, Wozniak called up his buddy Jobs. The pair did research on frequencies, then built and sold blue boxes to their classmates in college. Wozniak even used a blue box to call the Pope while pretending to be Henry Kissinger.

    Wozniak dropped out of college and came up with the computer that eventually made him famous. Jobs had the bright idea to sell the computer as a fully assembled PC board. The Steves sold Wozniak's cherished scientific calculator and Jobs' VW van for capital and got to work assembling prototypes in Jobs' garage. Wozniak designed the hardware and most of the software. In the Letters section of Woz.org, he recalls doing "what Ed Roberts and Bill Gates and Paul Allen did and tons more, with no help." Wozniak and Jobs sold the first 100 of the Apple I to a local dealer for $666.66 each.

    Woz no longer works full time for Apple, focusing primarily on philanthropy instead. Most notable is his function as fairy godfather to the Los Gatos, Calif. School District. "Wozniak 'adopted' the Los Gatos School District, providing students and teachers with hands-on teaching and donations of state-of-the-art technology equipment."

    Tim Berners-Lee:- Berners-Lee is famed as the inventor of the World Wide Web, the system that we use to access sites, documents and files on the Internet. He has received numerous recognitions, most notably the Millennium Technology Prize.

    While a student at Oxford University, Berners-Lee was caught hacking access with a friend and subsequently banned from University computers. w3.org reports, "Whilst [at Oxford], he built his first computer with a soldering iron, TTL gates, an M6800 processor and an old television." Technological innovation seems to have run in his genes, as Berners-Lee's parents were mathematicians who worked on the Manchester Mark1, one of the earliest electronic computers.

    While working with CERN, a European nuclear research organization, Berners-Lee created a hypertext prototype system that helped researchers share and update information easily. He later realized that hypertext could be joined with the Internet. Berners-Lee recounts how he put them together: "I just had to take the hypertext idea and connect it to the TCP and DNS ideas and – ta-da! – the World Wide Web."

    Since his creation of the World Wide Web, Berners-Lee founded the World Wide Web Consortium at MIT. The W3C describes itself as "an international consortium where Member organizations, a full-time staff and the public work together to develop Web standards." Berners-Lee's World Wide Web idea, as well as standards from the W3C, is distributed freely with no patent or royalties due.

    Linus Torvalds:- Torvalds fathered Linux, the very popular Unix-based operating system. He calls himself "an engineer," and has said that his aspirations are simple, "I just want to have fun making the best damn operating system I can."

    Torvalds got his start in computers with a Commodore VIC-20, an 8-bit home computer. He then moved on to a Sinclair QL. Wikipedia reports that he modified the Sinclair "extensively, especially its operating system." Specifically, Torvalds hacks included "an assembler and a text editor…as well as a few games."

    Torvalds created the Linux kernel in 1991, using the Minix operating system as inspiration. He started with a task switcher in Intel 80386 assembly and a terminal driver. After that, he put out a call for others to contribute code, which they did. Currently, only about 2 percent of the current Linux kernel is written by Torvalds himself. The success of this public invitation to contribute code for Linux is touted as one of the most prominent examples of free/open source software.

    Currently, Torvalds serves as the Linux ringleader, coordinating the code that volunteer programmers contribute to the kernel. He has had an asteroid named after him and received honorary doctorates from Stockholm University and University of Helsinki. He was also featured in Time Magazine's "60 Years of Heroes."

    Richard Stallman:- Stallman's fame derives from the GNU Project, which he founded to develop a free operating system. For this, he's known as the father of free software. His "Serious Bio" asserts, "Non-free software keeps users divided and helpless, forbidden to share it and unable to change it. A free operating system is essential for people to be able to use computers in freedom."

    Stallman, who prefers to be called rms, got his start hacking at MIT. He worked as a "staff hacker" on the Emacs project and others. He was a critic of restricted computer access in the lab. When a password system was installed, Stallman broke it down, resetting passwords to null strings, then sent users messages informing them of the removal of the password system.

    Stallman's crusade for free software started with a printer. At the MIT lab, he and other hackers were allowed to modify code on printers so that they sent convenient alert messages. However, a new printer came along – one that they were not allowed to modify. It was located away from the lab and the absence of the alerts presented an inconvenience. It was at this point that he was "convinced…of the ethical need to require free software."

    With this inspiration, he began work on GNU. Stallman wrote an essay, "The GNU Project," in which he recalls choosing to work on an operating system because it's a foundation, "the crucial software to use a computer." At this time, the GNU/Linux version of the operating system uses the Linux kernel started by Torvalds. GNU is distributed under "copyleft," a method that employs copyright law to allow users to use, modify, copy and distribute the software.

    Stallman's life continues to revolve around the promotion of free software. He works against movements like Digital Rights Management (or as he prefers, Digital Restrictions Management) through organizations like Free Software Foundation and League for Programming Freedom. He has received extensive recognition for his work, including awards, fellowships and four honorary doctorates.

    Tsutomu Shimomura:- Shimomura reached fame in an unfortunate manner: he was hacked by Kevin Mitnick. Following this personal attack, he made it his cause to help the FBI capture him.

    Shimomura's work to catch Mitnick is commendable, but he is not without his own dark side. Author Bruce Sterling recalls: "He pulls out this AT&T cellphone, pulls it out of the shrinkwrap, finger-hacks it, and starts monitoring phone calls going up and down Capitol Hill while an FBI agent is standing at his shoulder, listening to him."

    Shimomura out-hacked Mitnick to bring him down. Shortly after finding out about the intrusion, he rallied a team and got to work finding Mitnick. Using Mitnick's cell phone, they tracked him near Raleigh-Durham International Airport. The article, "SDSC Computer Experts Help FBI Capture Computer Terrorist" recounts how Shimomura pinpointed Mitnick's location. Armed with a technician from the phone company, Shimomura "used a cellular frequency direction-finding antenna hooked up to a laptop to narrow the search to an apartment complex." Mitnick was arrested shortly thereafter. Following the pursuit, Shimomura wrote a book about the incident with journalist John Markoff, which was later turned into a movie.
 

Wednesday 6 June 2012

WHAT DOES A CRACKER DO

A cracker is someone who breaks into someone else's computer system, often on a network; bypasses passwords or licenses in computer programs; or in other ways intentionally breaches computer security. A cracker can be doing this for profit, maliciously, for some altruistic purpose or cause, or because the challenge is there. Some breaking-and-entering has been done ostensibly to point out weaknesses in a site's security system.
The term "cracker" is not to be confused with "hacker". Hackers generally deplore cracking. 

DIFFERENCE BETWEEN A HACKER AND A CRACKER

A hacker can be referred to as a ‘white hat’. Some don’t use a system illegally, but expose holes within systems. Their aim is to fix flaws within systems and to improve its security. ‘White hats’ may be security professionals, who are hired by companies to audit network security or test software. They use the "same software tools that crackers use" and "seeks to improve the security of his own network by proactively attacking it as a cracker would. White hats may even create software aimed at thwarting tools available to crackers.

Therefore, they help businesses by understanding how a cracker operates and then takes steps to secure a network against likely avenues of attack.

A hacker can write code in one or more languages, such as C, C++, assembly, Java. They understand what certain codes do and how it works.

Whereas a cracker can be referred to as a ‘black hat’. They break into systems illegally for personal gain, vandalism, or bragging rights. Most crackers are not very knowledgeable or skilful with little programming ability. They therefore rely on automated programs that are downloaded from disreputable websites.
A cracker understands that he/she is breaking the law, and therefore cover their tracks in order to prevent being caught. Fortunately, many crackers are caught due to their lack of skills.

In summary, hacking and cracking can be used both illegally and legally to gain access to a computer network. Other than the ethical difference between the two, the major factor that separates hackers and crackers is an understanding of computer systems and the ability to create software. "A hacker, in the classic sense of the term, is someone with a strong interest in how things work, who likes to tinker and create and modify things for the enjoyment of doing so.

Monday 4 June 2012

WHAT IS A HACKER

Hacker is a term used by some to mean "a clever programmer" and by others, especially those in popular media, to mean "someone who tries to break into computer systems."
1) Eric Raymond, compiler of The New Hacker's Dictionary, defines a hacker as a clever programmer. A "good hack" is a clever solution to a programming problem and "hacking" is the act of doing it. Raymond lists five possible characteristics that qualify one as a hacker, which we paraphrase here:
  • A person who enjoys learning details of a programming language or system
  • A person who enjoys actually doing the programming rather than just theorizing about it
  • A person capable of appreciating someone else's hacking
  • A person who picks up programming quickly
  • A person who is an expert at a particular programming language or system, as in "UNIX hacker"
There Are 3 types of hacker
1. white hat hacker
A white hat is the hero or good guy, especially in computing slang, where it refers to an ethical hacker or penetration tester who focuses on securing and protecting IT systems.

2.gray hat hackers
A grey hat, in the hacking community, refers to a skilled hacker who sometimes acts illegally, sometimes in good will, and sometimes not. They are a hybrid between white and black hat hackers. They usually do not hack for personal gain or have malicious intentions, but may or may not occasionally commit crimes during the course of their technological exploits

3.black hat hackers
A black hat is the villain or bad guy. The phrase is often used figuratively, especially in computing slang, where it refers to a hacker who breaks into networks or computers, or creates computer viruses. They does computer hacking for bad purpose.