Thursday, December 29, 2011

HP Releases Firmware Update to Prevent Unauthorized Access

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After the Columbia University researchers Ang Cui and Salvatore Stolfo found a vulnerability in HP LaserJet printers that can allow a hacker to remotely control to launch cyber attacks, steal information and within a few possibilities can even destroy the device, HP finally released a firmware update as a precautionary measure which is expected to reduce the problem.

In a statement issued by the company, HP said that: "HP has built a firmware update to reduce this problem and establish proactive communication with customers and partners. So far there are no customers who reported unauthorized access to the HP device that is used. "

"HP reaffirms recommendation to perform actions according to the recommended procedure for securing the device by placing printers behind a firewall and, if possible, disable the remote firmware uploads on the printer."

While this all may go well, the problem is demonstrated again by investigators in November has caused much controversy. Some even sued the company for not warning their customers that there is vulnerability, especially since previous reports indicate that the level of security with a high risk exists in the printer.

At a moment of weakness it found a lot of debate that emerged about the circumstances in which attacks can be successfully launched and HP had to face much criticism, even from trusted security experts such as Mikko Hypponen. "First of all, how does HP do not have a signature or a certificate showing that the new firmware is the original firmware from HP?" Hypponen said.

Meanwhile, customers who depend on the model of LaserJet printers that have the vulnerability to attack immediately advised to upgrade the firmware on the device to prevent possible adverse incident.

Although HP does not report attacks that use vulnerabilities, but we never know what might have been designed or prepared by the criminals in cyberspace during this period. Also recommended to follow the instructions given by the company in Secure Printing and Imaging section to ensure you are protected in case of other bugs have also been found as a zero-day.
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Sunday, December 25, 2011

Healthy Benefits of Sweating seven

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Although sweating is often associated with something that is dirty, but actually sweating is healthy. Moreover, the sweat itself is basically odorless. He will be a problem if it mixes with bacteria that accumulate in the skin of the armpit. Listen to 7 healthy benefits of these sweat.
1. Cool the body
Sweating is the body's natural mechanism to regulate the temperature increases as we move or heat. "The sweat that comes out will help the body get rid of heat, so we will not be hot," said Adam Friedman, dermatology and cosmetic surgeon from Montefiore Medical Center, USA.

Because of the importance of the function of sweat, so if we can not sweat would endanger lives. "There is a condition called ectodermal dysplasia, which makes a person can not sweat," said Joel Schlessinger, a dermatologist.

People who suffer from ectodermal dysplasia conditions as they will be prohibited from exercising that heat can be bad for the heart and other body functions. So, thanks to sweating.
2. Brighten the face
The sweat streaming down his face, not only cools the body but also have an effect on facial skin clean. According to Schlesinger, the sweat on the face will reduce the dirt that clog pores. It will also prevent acne.

You can also do a "fake sport" to trigger sweating by heating the face. The trick, hold your face to steam for three minutes. "Evaporate the face is one way to clean skin. Afterwards do not forget to clean your face with perspiration that is not removed can cause clogged pores anymore," he said.
3. Healthy circulation
When we sweat, rapid heartbeat and circulation will be increased, especially around the skin. "Basic sweat glands located in the lower layers of skin that are located very close to the small blood vessels," said Kara Rogers, editor of biomedical Encylopaedia Britannica.

He added, when the sweat glands dilate, blood flow to the skin will increase so that the spur of the circulatory system.
4. Against infection
Sweating was very effective against the bacteria Staphylococcus aureus which is resistant to antibiotics. Besides sweating will also be reduced harmful bacteria and fungi on the skin.

According to Friedman, in the sweat fluid contained nitrite, which is converted into nitric acid when it reaches the skin surface, a gas containing antibacterial and antifungal. "Sweat also contains a natural antibiotic called Dermicidin that can kill bacteria," he said.
5. Disposing of poison
Research shows sweat contains various components, including toxic metal in small quantities. Because of that sweating is often referred to as detoksikan. With the number to 5 million sweat glands in human skin, do not be surprised if the sweating is a mechanism for removing toxins from the body.

"Toxins are discharged through sweat is usually a toxin that is far below the skin. They went out through the pores along with dust and oil are trapped. The cleaning process will enhance the immune system and helps the body fight the flu," said Rogers.

6. Cure
Do you know why we sweat during a fever? Sweating is a way to awaken the body's immune system to fight pathogens that make us sick. "Expenditure sweat is a way the body heal itself," said Christian Nix, a traditional Chinese medicine.

The same mechanism occurs when you exercise or in hot places. In addition to stimulating metabolism to maintain body weight, because the body will burn more calories but also this will stimulate the immune system.

7. Reduce asthma
If the sweat out of your body after exercising so much, then you suffer from asthma risk is lower. Thus the conclusion of research by a team from the University of Michigan.

Although not yet completely clear link between sweat and asthma, but researchers said the setting of sweat in the body are also associated with setting the amount of water released through the respiratory tract. In other words, people who rarely sweating generally have drier airways making it more prone to suffer from asthma.
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Thursday, December 22, 2011

Symantec Reveals Trends in Cyber ​​Security from Crime

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Goodbye 2011 and welcome 2012. Welcoming the year 2012, Symantec revealed some security trends revealed by the Regional Technical Director, System Engineering Symantec, Raymond Goh.He said the threat of data theft attack intelligence data and data will be increasingly important company data blindly in the year 2012, the hacker is expected to launch an attack to industrial facilities.

He further explained, Devices and Smart Phone Tablet PC will increase the number of users, therefore the security in the use of smartphones and tablet PCs to be tightened.

The number of users of these devices allows cyber criminals to be more focus on peripheral devices such crimes. For example, virus attacks Android Smartphone malware that attack.

Symantec recently discovered a series of attacks by the code name "Nitro" targeting private companies associated with research, development and manufacturing of chemicals and advanced materials. According to Raymond Goh, Corporate companies engaged in chemical materials should be more vigilant against attacks of cyber criminals.

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Firefox Version 9 Available With Improvements In JavaScript, Memory and Security

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Seeing his main rival, Internet Explorer (IE) and Google Chrome which has advantages in JavaScript so that the load process so much faster, Firefox re-launched the latest version of Firefox, the Firefox version 9.

Firefox version 9 has passed and now the beta version can be downloaded even though not yet officially announced, the advantages offered by Firefox version 9 is increased so that the JavaScript engine can load up to 30 percent faster than previous versions.

Lainnnya advantage is, if one of the plugins used to crash or freeze, it will not affect the overall performance of the browser. All you need to do is reload the page to restart the plugin and try again. Unlike the previous versions, when a plugin crashes, it should be in close firefox and re-opened.

Another part that has improved on Firefox version 9 is on the memory that claimed far more efficient because the new interface type is a method to decide and set the type of a variable in the JavaScript runtime. In terms of security, Firefox Version 9 has a security that can automatically keep your device from viruses Malware, Trojans and Spyware.

For those of you Mac OS X Lion Users will also get a more beautiful by using a theme that has been refurbished integration and support two-finger swipe. In addition to changes that can directly view your clay, Mozilla also do some repairs in the engine-ons such as support for HTML5, MathML and CSS.

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Palm WebOS 1.2.1 is Now Available Now With Improved iTunes Media Sync

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Palm has just announced the availability of an update to version 1.2.1 which will be used for webOS Palm Pre device. The latest operating system is able to repair Exchange mail syncing process experienced by some users.

On the other hand, for many others, the operating system is useful to run a media sync using iTunes 9.0.1 with or without the support of USB-IF as well though.

In fact, Palm has signaled its commitment to the hijackers by improving synchronization approach using photo applications in order to maintain the structure of the album wisely while allowing even the lowest-resolution images that will be synced to the Palm Pre available. Enjoy.


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Linux Mint 9 Isadora New Ready for the Users

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None of the most meritorious than Clement Lefebvre has announced the next major version of Linux Mint operating system. Dubbed Isadora, Linux Mint 9 is available starting today and is ready for download. Open source operating system is distributed both to the architecture 32-bit and 64-bit, like a Live CD or Live DVD (with Oracle's Java 6, VLC media player, OpenOffice.org, F-Spot, Samba, extra wallpapers and DejaVu fonts).

The existence of Linux Mint 9 (Isadora) itself is based on the latest release of the operating system Ubuntu 10.04 LTS (Lucid Lynx), and is powered by Linux kernel 2.6.32.11 same. Linux Mint 9 is equipped with more than 30,000 software packages repository, backup / restore the latest tools, which have been repaired Mint Menu, Windows installer, new artwork and many other great improvements.

Operating system Linux Mint 9 has an installer that has been modified and looks similar to the features of Ubuntu 10.0 counterpart. These operating systems include the latest features fairly good. And one feature not found on the popular Ubuntu OS, which is the welcome screen which is very helpful and instructive. The existence of useful applications and desktop improvements, such as Mozilla, Thunderbird 3 Pidgin or Open in Terminal script for Nautilus is also present in this release!

Linux Mint 9 (Isadora) was able to boot faster, with support for 3 years on the desktop and 5 years on the server (LTS release). In the presence of many good and beautiful wallpapers, some of GNOME icon themes are nice and humble GNOME, would have made the operating system is just like eye-catching.

Literally, Linux Mint will still always be the operating system's elegant, easy to use, up-to-date, 100% free and the Linux operating system based on the popularity of the Ubuntu operating system. This operating system offers paid commercial support to both businesses and individuals. Besides ityu, also of course the free community support is available from the forum and IRC channel.

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Ubuntu 12.04, Linux OS Offering More Efficient Energy Consumption

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Your laptop has a problem with batteries? Perhaps these problems can be solved using the Ubuntu OS version 12:04.

Ubuntu engineer named Colin King said that he is now working on power management of an OS. The goal, he wants the energy consumption of the Ubuntu 12:04 can be more efficient compared to other OS. OS is reportedly going to be downloaded in April 2012.

In a test conducted King, reduction of power consumption has been fruitless. This OS will arrange for USB, PCI controller, wireless, Bluetooth and other features that consume less power.
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Sunday, December 11, 2011

Download Modul Fisika BAB 3

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Download Modul Fisika BAB 3 Magnet





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Thursday, December 8, 2011

Nine Disease Due to Technological Progress

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Technology does offer convenience in the activity. But convenience is not necessarily without consequence. Research has found there are some health problems due to the use of technology in everyday life ranging from depression up to narcissism.

The nine diseases caused by technological advances as reported DailyRecord, Friday (11/25/2011), among others:

1. Hypersensitivity to Electromagnetic Waves from Wifi to Signal Phone

From wi-fi signal to a cell phone, people are surrounded by wireless communication. And for some people, exposure to electromagnetic fields can make the illness. Symptoms range from acute headaches and skin-burning up muscle twitching and severe pain.

An estimated 5 percent of Americans believe that they suffer from this condition and some of them have moved away to areas where wireless communication can dikonrtol strictly controlled to avoid problems.

2. Depression Facebook

Earlier this year, a group of physicians in the U.S. warned that teenagers can become so obsessed with Facebook and the expense of his health.

American Academy of Pediatrics states that neglected children on social networking sites would be more depressed than ignored in real life.

This organization warned of the risk of mental health of children who are victims of cyber-bullying and confirms that the use of some of the websites in the long run can affect sleep patterns and level of self-esteem.

3. Repeated strain injuries which caused a lot of Typing on Keyboard

Usually factory workers, tailors and musicians who had the most at risk of developing repetitive strain injuries. But today's office workers can suffer similar problems due to spending too much time using the keyboard.

The use of fingers, wrists, arms and shoulders repetitively can cause damage that can not be repaired by the body from time to time. Preventive measures such as regular breaks are recommended.

4. Headaches Due to Mobile Phone

For years, experts engaged in a fierce debate over whether cell phones dangerous or not. But studies have shown no relationship between headache and the use of mobile phones.

Research commissioned by mobile phone manufacturers in 2008 and found that a phone call shortly before bedtime can affect sleep quality can cause headaches the next day.

5. Internet Addiction

Many psychiatrists today that offer treatment for Internet addiction and has been treating patients who say that the online world has taken over his life.

According to U.S. psychiatrist, Jerald Block, the condition must be seen as a clinical disorder to see the ever increasing number of people who are addicted to gaming and pornography on the intenet.

6. Reduced Loss due to musical instruments such as Ipod

Some diseases may be new technology over troubling for 10 to 15 years. But already more than 30 years since it first raised concerns that listening to loud music through speakers may damage hearing.

The iPod has replaced the Walkman, but concerns remain the same. France has banned the gadget manufacturers to manufacture earphones that produce noise exceeds a certain level.

7. Play Nintendo Wii injury time

When the Nintendo Wii was first released, people of all ages are excited to try this game that replaces the 'stick' that ancient. The problem is many people who enjoy playing Wii games to lose track of time, causing muscle spasms.

8. Drunk from Game or Movie 3D

A peneltiian Association of Ophthalmologists released in the United States have found health problems due to television and 3D games. A quarter of users reported experiencing eye strain, blurred vision, dizziness, headache, or nausea after viewing 3D content.

People who experience such symptoms of drunkenness are highly susceptible to visual tricks that are used as a trick of visual technology.

9. Narcissism on Social Networking Sites

A study published earlier this year by two U.S. academics who find students who are getting fatter more selfish than previous generations because of the influence of modern technology.

Students of today are also more likely to display less narcissistic behavior and show empathy seeprti displayed in behavior or habit of constantly updating social networking sites.

In peneltiian, the men found to be more inclined to do this, although they are assumed not to use technology more often than women.a
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Understanding of Cisco Router

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On this occasion we will discuss about the definition CISCO Router.

Cisco is the main equipment that is widely used in Wide Area Networks or Wide Area Network (WAN). With Cisco routers, the information can be forwarded to the addresses that are far apart and located on a different computer networks. Which aims to be able to forward data packets from one LAN to another LAN.

Cisco routers use routing tables and protocol that serves to regulate the data traffic. Data packets arrive at the router is checked and forwarded to the addressee. In order for the received data packet to reach the destination quickly, the router must process the data with very precise. To that end, Cisco routers using the Central Processing Unit (CPU) as used in the computer to process data traffic quickly.

Like computers, Cisco routers also have some kind of memory is ROM, RAM, NVRAM and FLASH, which is useful to help work the CPU. In addition it is also equipped with a number of interfaces to connect with the outside world and out of the data.

The operating system used by Cisco routers are the Internetwork Operating System (IOS).

The memory used by Cisco routers each having its own utility as follows:

• ROM is useful for storing bootstrap system that serves to regulate the process of booting and running the Power On Self Test (POST) and the IOS image.

• RAM is useful for storing and running configuration and IOS operating systems are active.

• NVRAM configuration is useful for storing the initial (start-up configuration).

• FLASH useful for storing IOS image. By using FLASH, a new version of IOS can be obtained from the TFTP server without having to replace components in the router.

Thus a review of Understanding CISCO Router.

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