Month: February 2010

Troubleshoot Computer Problems in 2010

troubleshoot error pages Troubleshoot Computer Problems in 2010

We are in 2010 dose not mean that computers will stop giving problems. Even in 2010 technology is not that advance to fix their own problems. So someone need to troubleshoot problems as they arrive. Lets have a couple of simple hacks and tricks that can be used to fix any computer problem.

Most of us think that computers are perfect or suppose to be perfect and get frustrated when something goes wrong. That is wrong and computers can only do what you program it to do and if somethings small goes wrong it start giving problems. So you need to fix it.

People think that if it is related to computers then it is too complicated and you need to learn about it to fix it. But what you learn in school or university will not help much when it come to troubleshoot.

One more thing that if you are scared of things will go worse with your action then you might have difficulties trying out new things and troubleshooting.

Whats is the problem?

Before you start doing anything you need to identify that there is a problem. It is easy. If things dose not work as it was before or giving out error messages or warnings or if it dose not do what it suppose to do then there is a problem. Identifying the problem is the most important part of troubleshooting. That is the one most of us dose not pay much attention.

What cause the problem?

After identifying the problem then try to look for the reason for it. If there is any error message it will give most of the information you need. Most of the modern operating systems and programs have detailed error or warnings that tell what cause the problem.

Even if you get a error code you can always refer to its documentation or use Google to get the explanation and more details about the problem.

In some cases you will not find any error or warning message. For example if keyboard is not responding or CD/DVD ROM is not been detected or computer is too slow kind of scenarios will not leave any error messages. So try to collect as much information as possible.

What are the related software hardware components?
Which actions cause the error?

Above are two good questions that you should answer to get a idea about the problem. On top of that before you move to the next step try to get more information about the environment as well.

What Operating System (OS) are you using?
What is the OS Service Pack or Software Version?
What are the other programs that run in the background?
What are the last couples of changes you have done? (Upgrade/Installed new Software)

More related questions you try to answer related to your problem with make it easy to solve it as you get better unresting.

What is the solution to the problem?

As you gather more information about the computer or internet related problem will make it easy to look for a solution.

1. If you have solved a similar or exactly the same problem then the solutions for your problem will be to apply similar. That is base on your experience and with time you will gather more and more experience you will be able to troubleshoot tech problems pretty easily.

2. Even without any prior knowledge you can find a way to solve your tech problem.

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You are not the first person to go through PROBLEM A.

Most of the cases (99% of time) you will notice that you are not the only one to face that problem or the first one to be. So you can always get help from others who have solved the problem. If you gone through blogs or forums related to your problem then you will notice how many people were gone through the same problem.

I use Google to find these forums and blogs which gives out step by step guides to solve tech problems. Great but how do you know whether it is going to work out. Small trick you need to do is to scan through the comments below the post or the conversations going on in the forums to see what others been saying. Because all the time you will not find the working solutions.

Another important fact when it comes to Googling is to use the appropriate search term.

1. Use the exact error message or code.

In this way you will be able to find the most appropriate solutions from Google. I will always try to copy and paste the exact error message in Google or in the documentations.

2. Use the exact error message or code with the software/OS/website/ name and version.

If the error message is generic you have to use the name of the software, application, OS or website with its version details with the error message to see the related discussion and solutions with Google.

3. Description of your problem with software/OS/website/ name and version

If there is no error message or code then you have to use a little description of the problem and all the other details related to the issue. That can be the operating system, software name or version details.

Always it is better to mix up the keywords or add and remove keywords to optimize the search result for your problem.

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After going through the solutions and related comments and replies if you feel like that you cannot fix it or there is a high probability to make thing worst then always better to get someone else help. Even though you are not going to fix it by yourself knowing the problem and the solution is a great help when you try to look for help.

How to fix it?

Here comes the fun part. Fixing the problem. Until now what we did is to understand the problem and solutions to it. So now we need to apply it and get our problem solved.

1. First thing first. It is always better to backup your content and system as some times things can go wrong. If something can go wrong it will (Murphy’s Law). Unless your operating system is crashed or files are corrupted you have a chance to back up all your content before you try troubleshooting. In most of the step by step guides they will instruct you to backup if what you are trying to do can cause any damage to the data.

When it comes to system back up System Restore comes in handy as you can roll back to previous state of you computer if your troubleshooting created further problems and if you feel like it is getting worst and worst.

2. Then take couple of deep breaths and follow the solution that you found out. It is really important to be patience even things are not going great. That helps to over come the problems.

3. After going through the instructions sometimes you might end up without solving the problem. In worst case it might brings up a new problem. Do not blame anyone as that is quite common with computers. In such situation you need to go back to first step and follow the steps to get it fix.

This is quite general way to solve problems but I have tried this to solve many problems as it comes. Always a positive mind set will help you to get through any difficult situation with your computer or related issues.

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How Hackers Work?

Thanks to the media, the word “hacker” has gotten a bad reputation. The word summons up thoughts of malicious computer users finding new ways to harass people, defraud corporations, steal information and maybe even destroy the economy or start a war by infiltrating military computer systems. While there’s no denying that there are hackers out there with bad intentions, they make up only a small percentage of the hacker community.

796a68f812628e8bd41182f167504d25  How Hackers Work?

The term computer hacker first showed up in the mid-1960s. A hacker was a programmer — someone who hacked out computer code. Hackers were visionaries who could see new ways to use computers, creating programs that no one else could conceive. They were the pioneers of the computer industry, building everything from small applications to operating systems. In this sense, people like Bill Gates, Steve Jobs and Steve Wozniak were all hackers — they saw the potential of what computers could do and created ways to achieve that potential.

A unifying trait among these hackers was a strong sense of curiosity, sometimes bordering on obsession. These hackers prided themselves on not only their ability to create new programs, but also to learn how other programs and systems worked. When a program had a bug — a section of bad code that prevented the program from working properly — hackers would often create and distribute small sections of code called patches to fix the problem. Some managed to land a job that leveraged their skills, getting paid for what they’d happily do for free.

As computers evolved, computer engineers began to network individual machines together into a system. Soon, the term hacker had a new meaning — a person using computers to explore a network to which he or she didn’t belong. Usually hackers didn’t have any malicious intent. They just wanted to know how computer networks worked and saw any barrier between them and that knowledge as a challenge.

In fact, that’s still the case today. While there are plenty of stories about malicious hackers sabotaging computer systems, infiltrating networks and spreading computer viruses, most hackers are just curious — they want to know all the intricacies of the computer world. Some use their knowledge to help corporations and governments construct better security measures. Others might use their skills for more unethical endeavors.

In this article, we’ll explore common techniques hackers use to infiltrate systems. We’ll examine hacker culture and the various kinds of hackers as well as learn about famous hackers, some of whom have run afoul of the law.

The Hacker Toolbox

The main resource hackers rely upon, apart from their own ingenuity, is computer code. While there is a large community of hackers on the Internet, only a relatively small number of hackers actually program code. Many hackers seek out and download code written by other people. There are thousands of different programs hackers use to explore computers and networks. These programs give hackers a lot of power over innocent users and organizations — once a skilled hacker knows how a system works, he can design programs that exploit it.

Malicious hackers use programs to:
Log keystrokes: Some programs allow hackers to review every keystroke a computer user makes. Once installed on a victim’s computer, the programs record each keystroke, giving the hacker everything he needs to infiltrate a system or even steal someone’s identity.
Hack passwords: There are many ways to hack someone’s password, from educated guesses to simple algorithms that generate combinations of letters, numbers and symbols. The trial and error method of hacking passwords is called a brute force attack, meaning the hacker tries to generate every possible combination to gain access. Another way to hack passwords is to use a dictionary attack, a program that inserts common words into password fields.
Infect a computer or system with a virus: Computer viruses are programs designed to duplicate themselves and cause problems ranging from crashing a computer to wiping out everything on a system’s hard drive. A hacker might install a virus by infiltrating a system, but it’s much more common for hackers to create simple viruses and send them out to potential victims via email, instant messages, Web sites with downloadable content or peer-to-peer networks.
Gain backdoor access: Similar to hacking passwords, some hackers create programs that search for unprotected pathways into network systems and computers. In the early days of the Internet, many computer systems had limited security, making it possible for a hacker to find a pathway into the system without a username or password. Another way a hacker might gain backdoor access is to infect a computer or system with a Trojan horse.
Create zombie computers: A zombie computer, or bot, is a computer that a hacker can use to send spam or commit Distributed Denial of Service (DDoS) attacks. After a victim executes seemingly innocent code, a connection opens between his computer and the hacker’s system. The hacker can secretly control the victim’s computer, using it to commit crimes or spread spam.
Spy on e-mail: Hackers have created code that lets them intercept and read e-mail messages — the Internet’s equivalent to wiretapping. Today, most e-mail programs use encryption formulas so complex that even if a hacker intercepts the message, he won’t be able to read it.

Hacker Culture

Individually, many hackers are antisocial. Their intense interest in computers and programming can become a communication barrier. Left to his or her own devices, a hacker can spend hours working on a computer program while neglecting everything else.

Computer networks gave hackers a way to associate with other people with their same interests. Before the Internet became easily accessible, hackers would set up and visit bulletin board systems (BBS). A hacker could host a bulletin board system on his or her computer and let people dial into the system to send messages, share information, play games and download programs. As hackers found one another, information exchanges increased dramatically.

Some hackers posted their accomplishments on a BBS, boasting about infiltrating secure systems. Often they would upload a document from their victims’ databases to prove their claims. By the early 1990s, law enforcement officials considered hackers an enormous security threat. There seemed to be hundreds of people who could hack into the world’s most secure systems at will

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There are many Web sites dedicated to hacking. The hacker journal “2600: The Hacker Quarterly” has its own site, complete with a live broadcast section dedicated to hacker topics. The print version is still available on newsstands. Web sites like Hacker.org promote learning and include puzzles and competitions for hackers to test their skills.

When caught — either by law enforcement or corporations — some hackers admit that they could have caused massive problems. Most hackers don’t want to cause trouble; instead, they hack into systems just because they wanted to know how the systems work. To a hacker, a secure system is like Mt. Everest — he or she infiltrates it for the sheer challenge. In the United States, a hacker can get into trouble for just entering a system. The Computer Fraud and Abuse Act outlaws unauthorized access to computer systems

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Hackers and Crackers

Many computer programmers insist that the word “hacker” applies only to law-abiding enthusiasts who help create programs and applications or improve computer security. Anyone using his or her skills maliciously isn’t a hacker at all, but a cracker.

Crackers infiltrate systems and cause mischief, or worse. Unfortunately, most people outside the hacker community use the word as a negative term because they don’t understand the distinction between hackers and crackers.

Not all hackers try to explore forbidden computer systems. Some use their talents and knowledge to create better software and security measures. In fact, many hackers who once used their skills to break into systems now put that knowledge and ingenuity to use by creating more comprehensive security measures. In a way, the Internet is a battleground between different kinds of hackers — the bad guys, or black hats, who try to infiltrate systems or spread viruses, and the good guys, or white hats, who bolster security systems and develop powerful virus protection software.

Hackers on both sides overwhelmingly support open source software, programs in which the source code is available for anyone to study, copy, distribute and modify. With open source software, hackers can learn from other hackers’ experiences and help make programs work better than they did before. Programs might range from simple applications to complex operating systems like Linux.

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There are several annual hacker events, most of which promote responsible behavior. A yearly convention in Las Vegas called DEFCON sees thousands of attendees gather to exchange programs, compete in contests, participate in panel discussions about hacking and computer development and generally promote the pursuit of satisfying curiosity. A similar event called the Chaos Communication Camp combines low-tech living arrangements — most attendees stay in tents — and high-tech conversation and activities.

In the next section, we’ll learn about hackers and legal issues.

Hackers and the Law

In general, most governments aren’t too crazy about hackers. Hackers’ ability to slip in and out of computers undetected, stealing classified information when it amuses them, is enough to give a government official a nightmare. Secret information, or intelligence, is incredibly important. Many government agents won’t take the time to differentiate between a curious hacker who wants to test his skills on an advanced security system and a spy.

Laws reflect this attitude. In the United States, there are several laws forbidding the practice of hacking. Some, like 18 U.S.C. § 1029, concentrate on the creation, distribution and use of codes and devices that give hackers unauthorized access to computer systems. The language of the law only specifies using or creating such a device with the intent to defraud, so an accused hacker could argue he just used the devices to learn how security systems worked.

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Another important law is 18 U.S.C. § 1030, part of which forbids unauthorized access to government computers. Even if a hacker just wants to get into the system, he or she could be breaking the law and be punished for accessing a nonpublic government computer

[Source: U.S. Department of Justice].

Punishments range from hefty fines to jail time. Minor offenses may earn a hacker as little as six months’ probation, while other offenses can result in a maximum sentence of 20 years in jail. One formula on the Department of Justice’s Web page factors in the financial damage a hacker causes, added to the number of his victims to determine an appropriate punishment [Source: U.S. Department of Justice].
Hacking a Living
Hackers who obey the law can make a good living. Several companies hire hackers to test their security systems for flaws. Hackers can also make their fortunes by creating useful programs and applications, like Stanford University students Larry Page and Sergey Brin. Page and Brin worked together to create a search engine they eventually named Google. Today, they are tied for 26th place on Forbes’ list of the world’s most wealthy billionaires

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Other countries have similar laws, some much more vague than legislation in the U.S. A recent German law forbids possession of “hacker tools.” Critics say that the law is too broad and that many legitimate applications fall under its vague definition of hacker tools. Some point out that under this legislation, companies would be breaking the law if they hired hackers to look for flaws in their security systems

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Hackers can commit crimes in one country while sitting comfortably in front of their computers on the other side of the world. Therefore, prosecuting a hacker is a complicated process. Law enforcement officials have to petition countries to extradite suspects in order to hold a trial, and this process can take years. One famous case is the United States’ indictment of hacker Gary McKinnon. Since 2002, McKinnon fought extradition charges to the U.S. for hacking into the Department of Defense and NASA computer systems. McKinnon, who hacked from the United Kingdom, defended himself by claiming that he merely pointed out flaws in important security systems. In April 2007, his battle against extradition came to an end when the British courts denied his appeal [Source: BBC News].

In the next section, we’ll look at some famous and notorious hackers.

Famous Hackers

Steve Jobs and Steve Wozniak, founders of Apple Computers, are both hackers. Some of their early exploits even resemble the questionable activities of some malicious hackers. However, both Jobs and Wozniak outgrew their malicious behavior and began concentrating on creating computer hardware and software. Their efforts helped usher in the age of the personal computer — before Apple, computer systems remained the property of large corporations, too expensive and cumbersome for average consumers.

Linus Torvalds, creator of Linux, is another famous honest hacker. His open source operating system is very popular with other hackers. He has helped promote the concept of open source software, showing that when you open information up to everyone, you can reap amazing benefits.

Richard Stallman, also known as “rms,” founded the GNU Project, a free operating system. He promotes the concept of free software and computer access. He works with organizations like the Free Software Foundation and opposes policies like Digital Rights Management.

On the other end of the spectrum are the black hats of the hacking world. At the age of 16, Jonathan James became the first juvenile hacker to get sent to prison. He committed computer intrusions on some very high-profile victims, including NASA and a Defense Threat Reduction Agency server. Online, Jonathan used the nickname (called a handle) “c0mrade.” Originally sentenced to house arrest, James was sent to prison when he violated parole.

Greg Finley/Getty Images
Hacker Kevin Mitnick, newly released from the Federal Correctional Institution in Lompoc, California.

Kevin Mitnick gained notoriety in the 1980s as a hacker who allegedly broke into the North American Aerospace Defense Command (NORAD) when he was 17 years old. Mitnick’s reputation seemed to grow with every retelling of his exploits, eventually leading to the rumor that Mitnick had made the FBI’s Most Wanted list. In reality, Mitnick was arrested several times for hacking into secure systems, usually to gain access to powerful computer software.

Kevin Poulsen, or Dark Dante, specialized in hacking phone systems. He’s famous for hacking the phones of a radio station called KIIS-FM. Poulsen’s hack allowed only calls originating from his house to make it through to the station, allowing him to win in various radio contests. Since then, he has turned over a new leaf, and now he’s famous for being a senior editor at Wired magazine.

Adrian Lamo hacked into computer systems using computers at libraries and Internet cafes. He would explore high-profile systems for security flaws, exploit the flaws to hack into the system, and then send a message to the corresponding company, letting them know about the security flaw. Unfortunately for Lamo, he was doing this on his own time rather than as a paid consultant — his activities were illegal. He also snooped around a lot, reading sensitive information and giving himself access to confidential material. He was caught after breaking into the computer system belonging to the New York Times.

It’s likely that there are thousands of hackers active online today, but an accurate count is impossible. Many hackers don’t really know what they are doing — they’re just using dangerous tools they don’t completely understand. Others know what they’re doing so well that they can slip in and out of systems without anyone ever knowing.