Tag Archive: internet


De-Militarized zone (DMZ)

Every corporate office has a official public website which can be accessed by every individual using public internet. Data related to this site has to be stored in servers and the location of these servers is a challenge! The challenge is servers have to be accessible by the public users but they should not disturb the internal network of the organization in other words an attacker from internet should not be able to reach the internal network through these servers. Then came the concept of DMZ. It is a zone that lies between an organization’s internal network and an external network, usually the Internet

Concept of DMZ :

      In military terms, a De-Militarized zone (DMZ) is an area, usually the frontier or boundary between two or more military powers (or alliances), where military activity is not permitted, usually by peace treaty or other bilateral or multilateral agreement

In a computer network apart from the Internet and Intranet there exists De-militarized zone which has the security protection level lying in between the Intranet and the Internet. The Intranet is a High security zone where the internal host systems, servers etc., of an organization are present and which are to be secured from the attacks or threats. Internet is an outside public network which is considered as a low security zone.

Traffic flow in DMZ installed networks:

  • Internal hosts can access DMZ and internet.
  • External hosts can access only DMZ not the intranet.
  • DMZ hosts can access internet only.

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Google Fiber is a project which uses fiber optic communication for broad band network and which offers an amazing speed of 1000 Mbps,almost 100 times faster than todays broad band speed. Google Fiber is both your Internet and TV.It brings together your devices and gives you the freedom to search ,record and save shows.

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Remove DNSChanger Trojan Virus on your Computer

▶ Many will lose Internet on July 9th due to a Malware Called DNSChanger.

▶ Check if you are one among them.

▶ If your computer is affected, immediately rectify it with tools availabe at the end of this article.

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Computer meant to be a large box containing a screen along with another big box namely CPU. This was the picture of COMPUTER a decade back. But with the revolution of laptops, computers became mobile and users too started carrying it where ever they want. And now it’s the generation of new tablet PC’s and smart phones as well up to some extent. But users didn’t loose interest in the desktops so far.

Information stored in laptops and iPads can be easily referred and used because we can carry them where ever we want. But what about desktops? Using pen drives would be a better answer but not a perfect one. We may want some information from our desktop when we are some where far from our house. And the second thing is the security of that information present in our desktop even if we keep passwords.

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Northwestern University researchers have developed a new switching device that takes quantum communication to a new level. The device is a practical step toward creating a network that takes advantage of the mysterious and powerful world of quantum mechanics.

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LAN — Local Area Network

Hey guys now – a – days internet became the basic need for every individual…..but did we ever think how we are connected with the huge world of internet….here comes the solution…..LAN–The LOCAL AREA NETWORK ….

 

 

LAN is a datacomm system allowing a number of independent devices to communicate directly with each other, within a moderately sized geographic area over a physical communications channel.