Access zero or near zero: since Friday morning, internet access in Libya, as well as access to sites hosted in the country is cut, show measurements of Google and specialized companies. Since the beginning of the political crisis, the Libyan authorities had seemed hesitant about the procedure for access to the network, imposing intermittent power outages and limited in time.
The tactic has changed since Thursday night: the cut is now generally and without interruption for four days. General but not complete: as noted by the specialist company Renesys, the cut is not complete: "The Libyan Internet is still active, although the bulk of traffic is blocked. [...] We have identify a handful of IP (Internet Protocol) which still inside the country.
(...) There are people in Libya who still have access to YouTube, even if the rest of the country is in the dark. " Unlike Egypt, which had raised a total lockup of the Web, Libya has maintained a trickle of Internet access. Hosni Mubarak's regime had used a simple and brutal: the blocking of BGP (Border Gateway Protocol, which allows sites to report their address) and DNS (Domain Name Server, which allows web browsers to move on network).
Without these protocols, the Internet does not work, and the cut was complete. Libya, it has not cut the two key protocols. She just drastically reduce the bandwidth available to users, causing a slowdown that resembles a cut total network but keeps some active services. Importantly, this manipulation is much simpler reversible deactivation or reactivation of BGP across a country may take several hours, while a decrease or increase the amount of bandwidth is much faster effective .
The use of this technique was simpler in Libya, given that there is only one supplier of Internet access. "This tactic makes perfect sense from the standpoint of the government. The Internet is a valuable resource in times of war as a strategic bridge that provides the supplies. Until you can stop your enemy from using it, you have no interest to blow it up - you keep it intact for your own purposes, "Judge Renesys. 
The tactic has changed since Thursday night: the cut is now generally and without interruption for four days. General but not complete: as noted by the specialist company Renesys, the cut is not complete: "The Libyan Internet is still active, although the bulk of traffic is blocked. [...] We have identify a handful of IP (Internet Protocol) which still inside the country.
(...) There are people in Libya who still have access to YouTube, even if the rest of the country is in the dark. " Unlike Egypt, which had raised a total lockup of the Web, Libya has maintained a trickle of Internet access. Hosni Mubarak's regime had used a simple and brutal: the blocking of BGP (Border Gateway Protocol, which allows sites to report their address) and DNS (Domain Name Server, which allows web browsers to move on network).
Without these protocols, the Internet does not work, and the cut was complete. Libya, it has not cut the two key protocols. She just drastically reduce the bandwidth available to users, causing a slowdown that resembles a cut total network but keeps some active services. Importantly, this manipulation is much simpler reversible deactivation or reactivation of BGP across a country may take several hours, while a decrease or increase the amount of bandwidth is much faster effective .
The use of this technique was simpler in Libya, given that there is only one supplier of Internet access. "This tactic makes perfect sense from the standpoint of the government. The Internet is a valuable resource in times of war as a strategic bridge that provides the supplies. Until you can stop your enemy from using it, you have no interest to blow it up - you keep it intact for your own purposes, "Judge Renesys.
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