Y FIREWALLS

In your car, the firewall sits between the engine compartment and the front seat and is built to keep you from being burned by the heat of the combustion process. Your computer has a firewall, too, for much the same reason – to keep you and your data from being burned by hackers and thieves who are the unfortunate creators of “Internet combustion” and destruction. 


The firewall, a “combo” approach of software that regulates and monitors hardware and communications protocols, is there to inspect network traffic and all the “packets” of information that pass through to your inner sanctum, your CPU and hard drives. A firewall will rule out the possibility of harm, or at least greatly minimize, by noting and quarantining potentially harmful “zones” and will either deny or permit access to your computer based on the current set of rules that applies at the time, depending on many (very many) factors. 


Basic tasks and settings 


The basic task for a firewall is to regulate of the flow of traffic between different computer networks that have different “trust levels.” The Internet is full of countless overlapping zones, some safe and some totally deadly. On the other hand, internal networks are more likely to contain a zone or zones that offer a bit more trust. Zones that are in between the two, or are hard to categorize, are sometimes referred to as “perimeter networks” or, in a bit of geek humor, Demilitarized Zones (DMZ). 


Without proper configuration, a firewall can simply become another worthless tool. Standard security practices call for a "default-deny" firewall rule, meaning that the only network connections that are allowed are the ones that have been explicitly okayed, after due investigation. Unfortunately, such a setup requires detailed understanding of networkapplications and a great deal of time and energy to establish and administer. 


Who can do what? 


Many businesses and individuals lack sufficient computer and network knowledge to set up a default-deny firewall, and will therefore use a riskier but simpler "default-allow" rule, in which all traffic is permitted unless it has beenspecifically blocked for one of a number of possible reasons. This way of setting up a firewall makes “mysterious” and unplanned network connections possible, and the chance your system may be compromised becomes much more likely. 


Firewall technology had its first growth period in the computer technology revolution of the late 1980s, when the Internet was a fairly new in terms of its global reach and connectivity options. The predecessors to today’s hardware/software hybrid firewalls were the routers used in the mid 1980s to physically separate networks from each other. However small the Internet began, it was ultimately undone by supremely fast growth and the lack of security planning, and therefore there were the inevitable breaches caused by older (“prehistoric”) firewall formats. Fortunately, computer pros learn from their errors, and the firewall technology continues improving daily.

ENDANGERED TIGER

Though the tiger is one of the most powerful mammal, it also faces the worst chances of being extinct.

Tigers have been hunted heavily by humans over the past few years. The tiger population in the Indian sub-continent has declined seriously in the past fifty years. Nepal has only two hundred tigers, while India has about four thousand, a serious decline from the past figures. China and Korea are the biggest criminals as far as tiger poaching is concerned. In the nineteen hundreds, the entire tiger population was more than one lakh. However, today the global tiger population is less than ten thousand animals. 

While humans are the worst enemies of the tiger, it also has enemies in the form of elephants, bears and very large buffaloes.The only defense tigers have against their enemies are their razor sharp claws and their strong teeth. Other than that, sometimes the sheer weight of a tiger can kill a average sized humans. Tigers are known to weight as much as three hundred to five hundred pounds. 

The male tiger weighs five hundred pounds, whereas the tigress weighs three hundred pounds. The Siberian tiger is of the biggest size in the tiger family, and therefore the cat family. The tiger's average height is around three feet.

Tigers are very good climbers and swimmers. This adaptability saves them from natural disasters and floods. However, when it comes to fighting against their biggest mortal enemy - the human - tigers fall short of an arsenal in their weapon.

Tigers have been hunted by humans since time incarnate. In ancient times, some tigers were also tamed and kept as pets by royalty. Indeed, a tamed cat would add much color to the royal nature of people at that time.Tiger hunting was a sport played by royalty in ancient times. Also, in many Asian countries, there many superstitions regarding tigers. It doesn't matter whether wearing a talisman made out of a tiger's claw has any supernatural powers or not - a tiger will lose his life so that someone makes money out of it.

Other than that, tigers have been hunted for their fur. Ironically, the biggest enemies of tigers may be the connection they have with masculinity and strength in the minds of their largest predators, humans. Almost everything related to the tiger has been sold and held in high esteem and price, be it their claws, their fur, their teeth and in some cases, their eyes.

The tiger's body organs have also been rumored to be a cure for many of human ailments. This has also resulted in the reckless poaching of tigers, making the tigers an endangered species today.

Most of the tiger's body parts are said to be aphrodisiacs, medicines or poisons - possibly the most powerful in the world. This false notion has therefore made hunters hunt tigers for their whiskers, the aforementioned whiskers, their eyes, the aforementioned talismans and their penises, liver and fat, the aforementioned aphrodisiacs. The bones of a tiger are also said to be prized medicines.

Other than simple hunting, humans have also changed the natural habitat of the tiger. Humans have encroached on tiger land, which more often than not results in hunting tigers in the end. They have also destroyed their habitats by cutting down trees and polluting the atmosphere. More seriously, humans have hunted their prey, forcing tigers to either starve or take more risks. In reality, the tiger does not hunt any animal larger than itself, for example the elephant. 

There are now serious actions taken for the survival of this majestic beast at the brink of extinction. All sub species of the tiger, like the white tiger has been proclaimed to be endangered.China has banned the sale of all and any tiger related products since 1993. Since then, illegal poaching of tigers for their fur, bones and other organs is rampant.


This mammal really need a care now. These killing figures(1411) are itself telling that, they really need the attention else the day is not far when the Tiger will only become a text of some School book, and the coming generation just peeping their eyes while watching their photos.