25/07/2011

What be Paralyzed you don't know on the Internet?

The Internet over the years crept into our lives at a level that we today can not even imagine life without him. We take as fundamental, and the events of recent weeks have shown that the government - see the example of Egypt and Libya - is easily accessible by SONY VAIO VGN-SZ650N/C Battery users of the Internet.

Although the anno Internet - including the development of military age - an almost invulnerable to work, multi-center network of the mind and the end of each node on the situation. Urban Legend has it that the idea was so that individual stations or a nuclear attack in order to communicate with each other,Acer Aspire 7100 Battery has the possibility, in which the great powers have been reported. Although no nuclear attack, the Arab countries, they could limit access to the Internet. So the question arises as to human rights: how to disable the web?

Egypt has been able to clarify this point, but added that the situation is totally different than in the developed world. Moreover, although the country had only four major Internet service providers (ISP), however it exists only in the night to complete the separation. That is, although it is conceivable that Hosni Mubarak, the Egyptian president had also issued a special instruction before bedtime are more likely to have been the decision, and therefore took several hours to be able to implement. But if they did that in Western countries, and if so, how?

A barbaric solution

The best way to know a country is Acer Aspire 4710 Battery, bereft of the Internet - no experience necessary - if you cut out cable. There is really only an appropriate cutting tool, the son of the outcome of the detailed knowledge and devotion, but rather harsh words eljárásól. So maybe not the Egyptian leadership to reach this weapon is as the extreme case, it would be seriously considered, the possibility of a dictator.

In addition, Egypt is much cheaper to run mainly submarine, because the sea surface and positioned to receive the fiber optic cable, as in the desert. African countries are so intertwined with Italy and other Mediterranean countries, through the Red Sea region in eastern Africa and Saudi Arabia as well. Because the message that the neighbors receive no Acer Aspire One Battery error in the connection with the world as best as possible that Egypt had decided to cut the cord excluded.

BGP in the crosshairs

Renesys reported by the withdrawal from Egypt in the Internet BGP (Border Gateway Protocol) to handle the basic Internet routing protocol achieved. The PMO said that two autonomous systems (usually by the address space to ISPs managed), including the shortest path, ie the protocol, the data can be found at their destination. On 20 January 3500, but the leaders of the country specific BGP route for the prefix removed. Thus the World Wide Web, distribution centers can not determine the routing of data packets in Egypt are said to have been lost across the SONY VAIO VGN-FZ130E/B Battery border.

Despite the low probability that the Egyptian ISPs have been deleted in the aforementioned 3500-prefix, it is not because the router for each of these lines are removed. Much easier way to block outgoing BGP vectors, because it simply set up a virtual Iron Curtain is from the border. For these reasons, arguably the SONY VAIO VGN-CR305E/RC Battery service closed in Arab countries, Italy and other countries to the ISP of their separation from the street. This solution is feasible and relatively low in countries with low Internet Service Provider. After a "border router" are dead, the world has lost the connection with the country concerned, so that service users are isolated from the outside world. But then the family relationship is not affected. The transfer between two local ISPs obstacles for anyone who is also a necessity, BGP routers, what is new Acer Aspire Timeline 3810 Battery is not easy to manipulate. If a relatively small country with a central network is involved, such as Egypt.

In this context, one more thing: the ISPs in the power of the IS-IS (Intermediate System to Intermediate System) and OSPF (Open Shortest Path First) protocol used on the divider of the road. The PMO requires that, in contrast to IS-IS protocol and conversion, no complicated configuration of OSPF, the modification of both local (intra-network) SONY VAIO VGN-AR790U/B Battery between the communication partners can be crippling, but it should be off n 'matter what router or disable the divider of the road.

name Embarrassed

A relatively simple solution for the DNS (Domain Name System) servers, bypass, SONY VGP-BPS13/Q Battery which is responsible for translating the Web page corresponding IP address. For example, note the address 70.42.185.10 is not a simple task, while pcworld.com already stored. The DNS server will provide translations without the user can only access a single page, if you can not have the appropriate IP address for the truth, very rare. Egypt lekapcsolhattak three DNS servers in other countries without permission. However, it is the only viable domain names that have your name servers are in the country. .  example, SONY VAIO VGN-FW31M Battery can be found outside the two countries on three as a name server - in Vienna and the city of Seattle and the global blockade can not be reached. However, the DNS server are closed in most western countries are actually a parameter to the Internet. Of course, no harm in this case, data between Internet service providers blocked the flow of packets is also probably in Egypt, where Cairo is located in the service center just for the traffic to a halt.

Anyone can do it?

American countries, Dell Inspiron Mini 9 Battery with the exception of the water column, ie the data flow vero international capitals. The latter is a large number of headquarters and across the sea to the cable data transfer high in this regard due to high protection, including the United States is the most difficult to limit access to the Internet . Otherwise, the above reasons, the smallest of the country, they centralize the infrastructure master and the Internet provider under the universal service, the easier it is to the Internet in the country paralyzed. The tears, of course, feel free to quote bbet do, how to disable the World Wide Web, the West is a very difficult task that the government is always very hard and made ​​an incredible effort, they can.

 

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