Showing posts with label fiber optic. Show all posts
Showing posts with label fiber optic. Show all posts

Monday, October 2, 2017

Russia Provides New Internet Connection To North Korea

Authored by Martyn Williams via 38North.org,


A major Russian telecommunications company appears to have begun providing an Internet connection to North Korea. The new link supplements one from China and will provide back-up to Pyongyang at a time the US government is reportedly attacking its Internet infrastructure and pressuring China to end all business with North Korea.


The connection, from TransTeleCom, began appearing in Internet routing databases at 09:08 UTC on Sunday, or around 17:38 Pyongyang time on Sunday evening. Internet routing databases map the thousands of connections between telecom providers and enable computers to figure out the best route to a destination.


Until now, Internet users in North Korea and those outside accessing North Korean websites were all funneled along the same route connecting North Korean ISP Star JV and the global Internet: A China Unicom link that has been in operation since 2010.



Global Internet connectivity to Star JV. The orange denotes the China Unicom connection and blue the TransTeleCom. The graphic shows the Russian connection coming online around 0900 UTC, a short period of instability then a stable connection with two networks. (Dyn Research)


“The addition of Russian transit would create new internet path out of the country, increasing its resilience and international bandwidth capacity,” said Doug Madory, who analyzes global Internet connectivity at Dyn Research.


The new link comes at an interesting time.


On Saturday, The Washington Post reported that US Cyber Command has been carrying out denial of service attacks against North Korean hackers affiliated with the Reconnaissance General Bureau. The attacks attempt to overwhelm their computers and the Internet connection with traffic making them slow or impossible to use.


The US cyber attack was due to end on Saturday, reported the Post. That means the new Russian connection went online just after the US Cyber Command attack ended.


TransTeleCom, or TTK, is one of Russia’s biggest telecommunications companies and a subsidiary of the Russian railway operator. Fiber optic lines are laid alongside the railway and, according to a map on its website, on a route from Vladivostok right up to the North Korean border. 



A map of the TTK network shows a link running right up to the North Korean border.


That’s presumably at the Friendship Bridge, a railway crossing over the Tumen River that connects Khasan in Russia with Tumangang in North Korea. It’s the only connection between the two countries.



The Friendship Bridge connecting Russia (right) and North Korea (left). Photo: GoogleEarth.


This isn’t the first time North Korea has had alternate routes for Internet connectivity.


From 2012 for about a year, a second link to Star JV existed via Intelsat, an international satellite telecommunications operator, but in recent years the Chinese link has been the sole connection to Star JV.


Relying on one Internet provider has always left North Korea in a precarious situation.


More than once the link has been the target of denial of service attacks. Most were claimed by the “Anonymous” hacking collective, but on at least one previous occasion, many wondered if US intelligence services had carried out the action.


North Korea has few Internet users, but access to the network is available at major universities, to foreigners via smartphone, at government departments and major companies. Elite families are also suspected of having access. The cyber units of North Korea’s military also enjoy access.


The link is also vital for overseas researchers and academics who rely on access to North Korean state media websites for information.

Tuesday, May 30, 2017

"The Technology Is Getting Real" - Laser Weapons Edge Closer To Battlefield Use

 The Silent Hunter laser is powerful enough to cut through light vehicle armor at up to a kilometer away, making you wonder if China already has more powerful laser weapons only for domestic use.

And now Military.com reports, the toy-like drones destroyed during an Army field exercise at Fort Sill, Okla., last month weren"t anything special; however, the way they were brought down -- zapped out of the sky by lasers mounted on a Stryker armored vehicle -- might grab people"s attention.


The first soldier to try out the lasers was Spc. Brandon Sallaway, a forward observer with the 4th Infantry Division. He used a Mobile Expeditionary High Energy Laser to shoot down an 18-by-10-inch drone at 650 yards, an Army statement said.


"It"s nothing too complicated but you have to learn how to operate each system and get used to the controls which is exactly like a video game controller," said Sallaway, who hadn"t fired a laser before the exercise.


The drone-killing laser was relatively low energy -- only 5 kilowatts -- but the Army has tested much more powerful weapons. A 30-kilowatt truck-mounted High Energy Laser Mobile Demonstrator shot down dozens of mortar rounds and several drones in November 2013 at White Sands Missile Range, N.M.



Lockheed Martin"s 30-kilowatt Accelerated Laser Demonstration Initiative, known as ALADIN.


Since then, researchers have made rapid advances in laser weapons, said Bob Ruszkowski, who works on air dominance projects and unmanned systems in Lockheed"s secretive Skunk Works facility.


"We"re really on the cusp of seeing the introduction of lasers in future systems," he said.


The weapon tested at White Sands is about to double in power with a 60-kilowatt laser the Army plans to test in the next 18 months, he said in a phone interview May 12.


The laser generates its beam through fiber optic cables like those used by telecom companies, said Robert Afzal, a senior fellow for laser and sensor systems at Lockheed.


"We demonstrated that we could combine large number of these fiber lasers and link them to a weapons system," he said.


Lasers are very efficient at converting electrical power to a laser beam, Afzal said.


That"s important for the platforms that carry them, he said. It means they don"t need a large generator or cooling system and that high-powered lasers can be easily transported.


"This was the key puzzle piece that needed to be solved before we could begin to deploy these laser weapons," Afzal said. "The technology is getting real. It"s the dawn of a new era where the tech can be made smaller and powerful enough to be put on vehicles, ships and aircraft."


Scientists showed the potential of more powerful laser weapons in 2015 by burning a hole through a truck"s hood at a range of one mile.


"It was the most efficient high-powered laser ever demonstrated," Afazal said of the test, which mimicked what might happen if a laser was fired at a vehicle from an aircraft.


During an operation, a laser might be used to disable a vehicle where the goal was to capture rather than kill an individual, Ruszkowski said.


"The laser is a surgical weapon and it"s something customers are interested in," Afazal said. "Something like that can be easily integrated into an AC-130 gunship. That is something the Air Force is planning on demonstrating in the next two to three years."


Researchers believe they have the key ingredients to make such a system work, Ruszkowski said.


"When we realized that laser technology was maturing enough that we could be close to having something we could integrate on an aircraft we started looking at other difficulties that might arise," he said.


Airflow around a plane can destabilize lasers, so engineers developed a way to minimize turbulence, said Ruszkowski, who added that the Navy has deployed a laser weapon on board the USS Ponce in the Persian Gulf.


Laser weapons could be arriving just in time to defeat a growing menagerie of cheap-to-make drones and missiles in the hands of terrorists and rogue states, which could threaten expensive American military hardware.


"The threats are proliferating and changing," but laser weapons could counter some of them, Afazal said.


An advantage of laser weapons is that they don"t need ammunition, he said. For example, a forward-operating base could protect itself from airborne threats with a laser as long as there was enough fuel to power a generator and recharge its batteries.


Use of such weapons on enemy troops is a gray area that, for now, the U.S. military is steering clear of since international agreements ban the use of weapons intended to blind, Afazal said.


"Before lasers have been deployed and we understand how they work, the policy is conservative," he said.