why do we need intrusion detection systems

why do we need intrusion detection systems

Intrusion detection (IDS) or prevention (IPS) systems are still critical to overall information security success. Over the years, IDS/IPS has repeatedly been declared dead only to be revived each time. The goal of IDS is to detect cyberattacks by analyzing the signature of data packets as they traverse the network. By analyzing these packets we get real time alerts when bad things happen. IDS is a passive, detect and alert only tool. IPS adds an active protection method of adapting to the threat and blocking the traffic so the intended victim host is never reached. The weakness of all IDS and IPS systems is that they rely on signatures and can only see traffic that passes by them. Tuning signatures to eliminate false positives or keep up with the changing attack vectors used by

 why do we celebrate easter with eggs and bunnies

why do we celebrate easter with eggs and bunnies

What is Easter about? Easter is a Christian festival that celebrates the resurrection of Jesus Christ. The Bible says Christ died on the cross on Good Friday and came back to life three days later. Easter is on different dates each year, between 21 March and 25 April, depending on when there's a full moon in spring. There are some unusual modern traditions associated with it. Why do we have Easter eggs? A lot of us may chomp on chocolate eggs at Easter, but originally eating eggs was not allowed by the church during the week leading up to Easter (known as Holy Week). So any eggs laid that week were saved and decorated to make them "Holy Week eggs", then given to children as gifts. Victorians adapted the tradition with satin-covered cardboard eggs filled with Easter gifts. Why are Easter

 why do they call lsu stadium death valley

why do they call lsu stadium death valley

Only the toughest can survive the extreme conditions of CaliforniaБs Death Valley. The average high of 100-plus degree temperatures five months out of the year provides one of the most hostile environments for outsiders. But to the world of college football, Death Valley poses a different kind of threat to those who dare question its power. The thunderous roar that erupts from the stands can rattle opposing teams to their core and make the gridiron a barren wasteland for offenses. The only question for college football fans: Where is the real Death Valley Б Baton Rouge or Clemson, S. C.? Both LSU and Clemson lay claim to the Бreal Death Valley,Б with Clemson coach Dabo Swinney recently saying in a news conference his universityБs stadium was the original in a response to South Carolina

 why do we need iron in blood

why do we need iron in blood

Why do we need iron in our diet? The minerals required by our bodies are needed in very tiny amounts, and many minerals become poisonous in higher concentrations. б For example, iron is essential to make haemoglobin and blood, but drinking too much iron in water, or an overdose as few as 20 of the iron tablets used to treat anaemia, can be enough to kill. Our small intestines regulate the amount of iron we absorb from foods, depending on how much is present in the diet, and how much the body needs at that particular time. ...

 why does the t rex have small arms

why does the t rex have small arms

The Tyrannosaurus rex is revered as one of the most fearsome creatures to inhabit the earth, with an average weight of six tons and the power to using its massive jaw. But one researcher believes the dinosaur s mostб ridiculed body part may have been just as vicious: the T. rex s puny, undersized arms. According to Steven Stanley, a paleontologistб at the University of Hawaii at Manoa, T. rex arms were used to slash preyб in close proximity to the dinosaur. The arms, which were approximately three feet long, featured crescent-shaped talons that could be used to inflict mortal wounds to prey. And the short arm length was actually more beneficial for slashing, considering the size ofб T. rex sб head. БIts short, strong forelimbs and large claws would have permitted T. rex, whether mounted

 why should uniforms be mandatory in schools

why should uniforms be mandatory in schools

School uniform plays implicitely different positive roles. It also instills in them a sense of discipline, equality and commitement. Being mandatory, a uniform takes studies or school to a next level of seriousness and values. Students become more conscious that their school is an environment of respect. There are limits that they should not overtep which draw the guidelines for them to be responsible, inured to pressure, ready to face what any situation impose on them in the future. When they ll grow older they ll recognise the tremendous impact of this seemingly small details in their life. Uniforms could make a positive impact on the learning environment. Often, children's social lives are started in school. Which is fine. Our children need to learn to make friends and voice their

 why do they call washington the evergreen state

why do they call washington the evergreen state

Many cities come with their very own nicknames that may seem kind of random, but often have roots in what the city is all about or tell you a bit about the city s history. Seattle is no exception. Often called the Emerald City, Seattle s nickname might seem a little off, maybe even misplaced. After all, Seattle isn t known for emeralds. Or maybe your imagination goes toward The Wizard of Oz, but Seattle doesn t have a whole lot to do with Oz either (although, some might argue that Bill Gates is a bit of a wizard). Seattle s nickname is much more visual. Seattle is called the Emerald City because the city and surrounding areas are filled with greenery all year round. The nickname comes directly from this greenery. Emerald City also echoes Washington Stateвs nickname as The Evergreen State

 why do we need to protect wetlands

why do we need to protect wetlands

Why Are Wetlands Important? Wetlands prevent flooding by holding water much like a sponge. By doing so, wetlands help keep river levels normal and filter and purify the surface water. Wetlands accept water during storms and whenever water levels are high. When water levels are low, wetlands slowly release water. Wetlands also release vegetative matter into rivers, which helps feed fish in the rivers. Wetlands help to counter balance the human effect on rivers by rejuvenating them and surrounding ecosystems. Many animals that live in other habitats use wetlands for migration or reproduction. For example, herons nest in large old trees, but need shallow areas in order to wade for fish and aquatic life. Amphibians often forage in upland areas but return to the water to mate and reproduce.

 why do teeth move after having braces

why do teeth move after having braces

We get many people telling us they have worn braces to straighten their teeth in their teens, but their teeth have become crooked again. Straight Teeth Direct Pcan help you straighten your teeth again with clear aligners and here we explain why unplanned tooth movement can happen and what to do to prevent it from happening again. In nature everything follows the path of least resistance. The wind blows and the grass bends. In the same way think of the thousands of movements your jaw and facial muscles make every day of your life. Every time you even breathe, speak, chew, sneeze or smile different muscles come into play, stretching and contorting your mouth. And your tongue is another very powerful muscle, pushing against your teeth continuously as you form words. Over time the jaw grows

 why do toucans live in the tropical rainforest

why do toucans live in the tropical rainforest

The Toco toucan, the largest toucan species, measures approximately two feet, which makes it twice the size of the tawny-tufted toucanet, one of the smallest varieties. Toucans generally have a black plumage that contrasts with their brightly colored throats and faces. The colors of the bill vary and are reflected in the names of several species, such as the chestnut-mandibled and black-mandibled toucans. The most colorful bill is that of the keel-billed, or rainbow-billed toucan, which is mostly green with red, blue and orange parts. Though large, the bill of the toucan is mostly hollow and light. Its wings, however, are heavy, which makes the toucan a clumsy flyer that prefers hopping from branch to branch. ...