• Nu chevron_right

    Comment partager la connexion Internet 4G d’un smartphone / Numerama · Saturday, 23 January, 2021 - 07:01

Wi-Fi smartphone

Le partage de connexion sur le Samsung Galaxy, l'iPhone ou n'importe quel smartphone est très facile à mettre en place. La manipulation fonctionne sur Android et iOS. Pour connecter un PC à son smartphone, il faut passer par le mode modem et partager la connexion 4G ou 5G pour faire passer les données mobiles en Wi-Fi. [Lire la suite]

Voitures, vélos, scooters... : la mobilité de demain se lit sur Vroom !

L'article Comment partager la connexion Internet 4G d’un smartphone est apparu en premier sur Numerama .

  • Nu chevron_right

    La certification des nouvelles capacités du Wi-Fi se met en place / Numerama · Friday, 8 January, 2021 - 14:55

WiFi 6E

Le consortium en charge de la norme Wi-Fi annonce la mise en place du processus de certification du Wi-Fi 6E. Derrière ce nom se cache l'avenir du plus célèbre des protocoles de connexion sans fil. [Lire la suite]

Voitures, vélos, scooters... : la mobilité de demain se lit sur Vroom !

L'article La certification des nouvelles capacités du Wi-Fi se met en place est apparu en premier sur Numerama .

  • Nu chevron_right

    Free WiFi, c’est bientôt fini / Numerama · Wednesday, 6 January, 2021 - 11:10


Des internautes ont remarqué l'absence du support du Free WiFi sur les dernières box de l'opérateur. Il ne s'agit pas d'un oubli, selon Xavier Niel, qui estime que ce service n'est plus guère utile à l'heure de la 4G généralisée. [Lire la suite]

Abonnez-vous à notre chaîne YouTube pour ne manquer aucune vidéo !

L'article Free WiFi, c’est bientôt fini est apparu en premier sur Numerama .

  • chevron_right

    iPhone zero-click Wi-Fi exploit is one of the most breathtaking hacks ever / ArsTechnica · Wednesday, 2 December, 2020 - 02:34 · 1 minute

The screen on the iPhone 12 Pro Max

Enlarge / That's a lot of screen. (credit: Samuel Axon)

Earlier this year, Apple patched one of the most breathtaking iPhone vulnerabilities ever: a memory corruption bug in the iOS kernel that gave attackers remote access to the entire device—over Wi-Fi, with no user interaction required at all. Oh, and exploits were wormable—meaning radio-proximity exploits could spread from one near-by device to another, once again, with no user interaction needed.

This Wi-Fi packet of death exploit was devised by Ian Beer, a researcher at Project Zero, Google’s vulnerability research arm. In a 30,000-word post published on Tuesday afternoon, Beer described the vulnerability and the proof-of-concept exploit he spent six months developing single handedly. Almost immediately, fellow security researchers took notice.

Beware of dodgy Wi-Fi packets

“This is a fantastic piece of work,” Chris Evans, a semi-retired security researcher and executive and the founder of Project Zero, said in an interview. “It really is pretty serious. The fact you don’t have to really interact with your phone for this to be set off on you is really quite scary. This attack is just you’re walking along, the phone is in your pocket, and over Wi-Fi someone just worms in with some dodgy Wi-Fi packets.”

Read 6 remaining paragraphs | Comments

  • chevron_right

    FCC adds 45MHz to Wi-Fi, promising “supersize” networks on 5GHz band / ArsTechnica · Wednesday, 18 November, 2020 - 20:26

A wireless router seen near a woman using a laptop.

Enlarge (credit: Getty Images | Kittichai Boonpong | EyeEm )

The Federal Communications Commission today voted to add 45MHz of spectrum to Wi-Fi in a slightly controversial decision that takes the spectrum away from a little-used automobile-safety technology.

The spectrum from 5.850GHz to 5.925GHz has, for about 20 years, been set aside for Dedicated Short Range Communications (DSRC), a vehicle-to-vehicle and vehicle-to-infrastructure communications service that's supposed to warn drivers of dangers on the road. But as FCC Chairman Ajit Pai today said, "99.9943 percent of the 274 million registered vehicles on the road in the United States still don't have DSRC on-board units." Only 15,506 vehicles have been equipped with the technology, he said.

In today's decision , the FCC split the spectrum band and reallocated part of it to Wi-Fi and part of it to a newer vehicle technology. The lower 45MHz from 5.850GHz to 5.895MHz will be allocated to Wi-Fi and other unlicensed services.

Read 19 remaining paragraphs | Comments

  • chevron_right

    Google releases new, cheaper Google Wi-Fi alongside Nest Wi-Fi / ArsTechnica · Thursday, 8 October, 2020 - 10:30

A jar-sized electronic device looks like two oversized Tylenol stacked atop each other.

Enlarge / The new Google Wi-Fi pucks look much like the originals—the substitution of a DC barrel jack for the original USB-C charging port seems to be the biggest difference. (credit: Google )

This week, Google launched another, cheaper version of its Wi-Fi-mesh product line. A little more than a year after the introduction of Nest Wi-Fi , this new product line resurrects the original Google Wi-Fi branding and is sold in one-, two-, or three-piece sets.

For the most part, the new Google Wi-Fi seems pretty similar to the original—each device is a small, squat white cylinder sporting twin gigabit Ethernet ports, dual-band 802.11ac, AC1200 (Wi-Fi 5, 2x2) radios, along with Bluetooth Low-Energy support. The 2020 version of Google Wi-Fi has a simple DC barrel jack in place of the USB-C charging port on the original version.

The more expensive Nest Wi-Fi offers an integrated smart speaker in each node and a fatter Wi-Fi backhaul pipe—although both Nest Wi-Fi and Google Wi-Fi are dual-band 802.11ac (Wi-Fi 5), the 5GHz radio in the more expensive Nest Wi-Fi is 4x4, offering double the backhaul (connection to the next node closer to the Internet) throughput.

Read 5 remaining paragraphs | Comments

  • chevron_right

    Eero for Service Providers: Eero Wi-Fi mesh targeted at ISPs / ArsTechnica · Wednesday, 7 October, 2020 - 10:45 · 1 minute

Promotional image of three anodyne electronic devices.

Enlarge / A trio of Wi-Fi 6 Eero Pro devices like these should provide excellent Wi-Fi coverage and performance for nearly any home. (credit: Eero )

This Tuesday, Eero—one of the first and most popular Wi-Fi-mesh providers—announced a new hardware and software program which targets ISPs rather than retail customers. Ars spoke about the new program at length with Nick Weaver, Eero founder and CEO, and Mark Sieglock, Eero's GM of Software Services.

The short version of Eero for Service Providers is simple: deploy new Eero 6 series hardware, let your customers self-install using a co-branded app with the ISP's own name on it, and provide the ISP with Eero Insight, a dashboard allowing them to view metrics from the entire fleet-level down to individual households. The telemetry exposed to the ISP includes outages, speed-test data, client network topology, RF diagnostics, and more.

Weaver told us that the vanilla Eero Insight dashboard itself wasn't the whole story, though. The metrics, charts, and graphs the dashboard exposes can also be accessed via API, allowing larger providers to seamlessly integrate the data into their own, existing dashboards.

Read 7 remaining paragraphs | Comments

  • chevron_right

    Digital equity program in Maryland adds Plume Wi-Fi to its Internet access / ArsTechnica · Tuesday, 22 September, 2020 - 13:00 · 1 minute

Seventy low-income and special needs units in this apartment complex will offer Plume-managed Wi-Fi.

Enlarge / Seventy low-income and special needs units in this apartment complex will offer Plume-managed Wi-Fi. (credit: Michael Bennett Kress Photography)

Montgomery County, Maryland offers its low-income and special needs citizens Internet access via a 600-linear-mile fiber route as part of its Digital Equity program. In a new pilot project, the county will add onsite Wi-Fi—by way of Plume superpods —to its existing basic Internet access.

Digital Equity is defined as a condition in which all individuals in a society can access the technology needed to fully participate in our society, democracy, and economy. The Office of Broadband Programs (OBP) is taking steps towards achieving digital equity in Montgomery County, through programs such as expanding broadband services, educating seniors, and aiding individuals in connecting to the internet.

—Montgomery County Office of Broadband Programs

Ars spoke to Montgomery County's Chief Broadband Officer, Joe Webster, about the upcoming project. Webster told us that although the county has been providing free or low-cost Internet service to residents in need for some time, significant challenges remain beyond the demarc. If you're unfamiliar with the term, "demarc" is ISP shorthand for "point of demarcation"—the point beyond which your IT problems are your own, not the service provider's.

Wi-Fi is a particular pain point, and the low-income and special needs citizens served by Joe's office face particular challenges trying to set up and administer in-home Wi-Fi, due to both the expense and complexity. Ongoing support of in-home Wi-Fi is also a challenging and expensive proposition—network equipment vendor Actiontec claims 60 percent of all ISP support calls are really for Wi-Fi, not the Internet service itself.

Read 12 remaining paragraphs | Comments