Nikolay Abromov blog

Whenever a laptop containing lots of private data is lost, there are calls for 'disk encryption' that encodes all of a computer's data to become standard practice. But a dramatic new result by security researchers at Princeton suggests it is no panacea. They've shown that a computer's RAM - short term memory - can give it away. RAM needs power to hold data; but the researchers have found that information can persist for up to minutes after the power is cut. That's long enough to extract the key needed to unscramble the encrypted disk, which is always kept in a computer's RAM. An accessible video (below or here) explains the team's findings in more detail. And you can read more at a website set up to explain the work. The RAM in most computers can hold information for a few seconds to a minute after power down. But cooling the RAM chip can extend that to up to ten minutes. Another video shows how an image held in RAM slowly degrades after the power is tur...

naposledyk mi vurvi na "saving energy" temi. Мрежовите устройства намаляват до 45% разходите за електричество Доставчикът на мрежови решения D-Link обяви новите се “зелени” продукти с грижа за околната среда. След като в края на миналата година компанията първа на пазара представи енергоспестяващата си гама D-Link Green Ethernet, сега добави нови продукти към серията и отвори концепцията за “зелени мрежи” към бизнес потребителите чрез неуправляемите Green Ethernet комутатори DGS-1016D 16-port и DGS-1024D 24-port. Компаниите в цял свят чувствително намаляват оперативните разходи и оптимизират използването на ценни ресурси, за да следват политиките на социална отговорност. Новите Green Ethernet комутатори на D-Link „разпознават” кога свързаното с тях устройства е изключено, за да приведат съответния комуникационен порт в режим на готовност (или т.нар. stand by), като по този начин намалят количеството електроенергия, което този порт използва. 16-портовият DGS-1016D и 24-портов...

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Source: TCPmag.com 1/22/2008 -- Cisco Systems today announced a new expert-level certification, the Cisco Certified Design Expert (CCDE), for high-level IT pros who design and architect enterprise networks. The CCDE is modeled after the company's flagship Cisco Certified Internetwork Expert (CCIE) certification for high-level networking pros. Like the CCIE, the CCDE will have a qualification exam and an eight-hour hands-on exam. Pricing is the same: $315 for the qualification exam and $1,400 for the hands-on exam. Unlike the CCIE -- which offers specializations for Routing & Switching, Security, Voice and other areas -- the CCDE will not offer tracks. "This is above the tracks," said Jeanne Dunn, senior director of learning at Cisco. "You have to know voice, have to know security, but it's at a higher level. To be a designer, they have to go beyond [to] see how it all works together." And while the new title is technically the same level as the CCIE, ac...

Internetwork Experts zabawiat releasewaneto na vtoria si workbook poradi security prichini koeto malko me razocharowa i mi zagubiha znachitelno vreme, oficialno beshe predvideno da izleze na 15Jan koeto i do den dneshen (5 FEB 2008) ne se e sluchilo.

Support for up to 256 10 Gigabit Ethernet or 384 10/100/1000 Ethernet ports in a single 10-slot chassis • A fully modular and fully redundant 10-slot chassis with front-to-back airflow and integrated cable management • Dual dedicated supervisor modules, providing exceptional high-availability features with no service interruptions even during hardware and software upgrades • Highly scalable fabric architecture supporting up to five fabric modules for load-balanced, fault-tolerant operation and designed to deliver 230 Gbps per slot of bandwidth at release, with future support for more than 500 Gbps per slot • Virtual output queuing and Fabric Arbitration, deliver quality of service (QoS) and fairness across all ports, even during congestion, and provide the basis for future unified I/O • Integrated security hardware support for Cisco TrustSec, providing data confidentiality while simplifying and scaling access control • Fully distributed forwarding engines, providing scalable packet pro...

So it seems that the oft-rumored handset from Google has taken that final leap into the "confirmed" column, though it may not be quite the be-all, end-all device we were expecting. Isabel Aguilera, Google's chief executive in Spain and Portugal, has admitted that the searchmeisters have some mobile goodness in the works but appeared to play down the project, noting that the phone is just one of 18 R&D initiatives the company currently has underway. Furthermore, she mentioned that Google's mobile skunkworks were designed to make their way into developing countries, suggesting that this may not be the Samsung sourced, iPhone-killing monster we'd been getting an earful about as of late. But hey, if Apple intends to turn the iPhone into a multi-device franchise, Google's entitled to do the same, is it not? source:http://www.engadget.com/