Bringing fiber all the way to your home is only one piece of the puzzle. We also partner with content providers (like YouTube, Netflix, and Akamai) to make the rest of your video’s journey shorter and faster. (This doesn’t involve any deals to prioritize their video ‘packets’ over others or otherwise discriminate among Internet traffic — we don’t do that.)
via Google Fiber Blog.
At their lowest energies, the atoms become the coldest known bodies in the universe. Super-cooled low energy atoms are extremely sensitive to changes in the Earth’s magnetic and gravitational field.
If trapped on a small device, their fluctuations can allow scientists to track their movements from great distances away and their locations pinpointed with extreme precision.
via British MoD works on ‘quantum compass’ technology to replace GPS.
The plan calls for a satellite to be sent out several tens of thousands of miles from Earth. The satellite will unfold a huge, flower-shaped metal shade that will literally block the light of some far-out star to the point where a space telescope, which will directly communicate with Starshade, will be able to image whatever planets are orbiting it directly.
via NASA’s Plan to Block Light From Distant Stars to Find ‘Earth 2.0’ | Motherboard.
It’s hard to imagine a single smartphone or tablet needing to receive more than 433Mbps of data. But the fact that MU-MIMO-powered Wi-Fi will be able to serve more users simultaneously could bring huge benefits to large-scale wireless networks, like those in airports, convention centers, and sports stadiums. Real-world throughput will end up being something lower than 433Mbps to each user because of networking overhead and other limitations, but given that a high-definition Netflix stream is just 5Mbps, there isn’t much reason to worry about that yet.
via Wi-Fi networks are wasting a gigabit—but multi-user beamforming will save the day | Ars Technica.
The first 11ac products implemented single-user beamforming, sending one transmission to a single receiver. Multi-user beamforming, coming in the next wave of 11ac products this year and next year, enables MU-MIMO and its simultaneous transmission to multiple devices.
We have collection of more than 1 Million open source products ranging from Enterprise product to small libraries in all platforms. We aggregate information from all open source repositories. Search and find the best for your needs.
via 7 open source control-panel.
This site looks like an interesting resource to find useful open source packages. Webmin is listed as second in this list of 7 control panels. I have been using Webmin forever but might try out ISPConfig. Although something is listed on this site I always download packages from sourceforge.net.
The letter follows new revelations, including photos, published in a book based on documents leaked by former NSA contractor Edward Snowden alleging that the NSA intercepted equipment from Cisco and other manufacturers and loaded them with surveillance software. The photos, which have not been independently verified, appear to show NSA technicians working with Cisco equipment. Cisco is not said to have cooperated in the NSA’s efforts.
via In Letter to Obama, Cisco CEO Complains About NSA Allegations | Re/code.
The evidence is that a contributor who is down-voted produces lower quality content in future that is valued even less by others on the network. What’s more, people are more likely to down-vote others after they have been down voted themselves. The result is a vicious spiral of increasingly negative behaviour that is exactly the opposite of the intended effect.
As demonstrated, this vulnerability wasn’t a result of insufficient system testing; it was because of insufficient unit testing. Keith Ray himself wrote a “Testing on the Toilet”8 article, “Too Many Tests,”11 explaining how to break complex logic into small, testable functions to avoid a combinatorial explosion of inputs and still achieve coverage of critical corner cases (“equivalence class partitioning”). Given the complexity of the TLS algorithm, unit testing should be the first line of defense, not system testing. When six copies of the same algorithm exist, system testers are primed for failure.
In particular, PostgreSQL 9.4 natively supports JSON JavaScript Simple Object Notation which is quickly becoming the format of choice for sharing data across different systems, often using the REST Representational State Transfer protocol. The success of the MongoDB document database has been built in large part on the growing use of JSON.
PostgreSQL’s structured format for saving JSON, called JSONB, eliminates the need for restructuring a document before it is committed to the database.
Media, content creation, and life sciences struck Stitt as good examples for where OpenStack enjoys stronger greenfield adoption. Those areas revolve around the generation of entirely new data, rather than the manipulation of existing data; everything newly created can simply be deployed fresh into OpenStack.
It’s hard to ignore the overall enthusiasm around OpenStack — the near-doubling of attendance to 4,500 at this year’s summit is a sign of how interest is mushrooming. And the overarching presence of Red Hat shows how it’s working to make itself as synonymous with OpenStack as it did with Linux — but the existence of other vendors all vying for attention also raises a cautionary note that, open source notwithstanding, the OpenStack market runs the risk of becoming as fragmented and contentious as Linux itself.
via Don’t celebrate OpenStack’s success just yet | Openstack – InfoWorld.