"My goal is to have a firewall that I trust," writes Slashdot reader eggegick, "not a firewall that comes from the manufacture that might have back doors." I'm looking for a cheap mini PC I can turn into a headless Linux-based wireless and Ethernet router. The setup would be a cable modem on the Comcast side, Ethernet out from the modem to the router and Ethernet, and WiFi out to the home network.
Two long-time Slashdot readers had suggestions. johnnys believes "any old desktop or even a laptop will work.... as long as you have a way to get a couple of (fast or Gigabit) Ethernet ports and a good WiFi adapter... " Cable or any consumer-grade broadband doesn't need exotic levels of throughput: Gigabit Ethernet will not be saturated by any such connection...

You can also look at putting FOSS firewall software like DD-WRT or OpenWrt on consumer-grade "routers". Such hardware is usually set up with the right hardware and capabilities you are looking for. Note however that newer hardware may not work with such firmwares as the FCC rules about controlling RF have caused many manufacturers to lock down firmware images.

And you don't necessarily need to roll your own with iptables: There are several BSD or Linux-based FOSS distributions that do good firewall functionality. PFSense is very good and user-friendly, and there are others. OpenBSD provides an exceptionally capable enterprise-level firewall on a secure platform, but it's not designed to be user-friendly.
Long-time Slashdot reader Spazmania agrees the "best bet" is "one of those generic home wifi routers that are supported by DD-WRT or OpenWrt." It's not uncommon to find something used for $10-$20. And then install one or the other, giving a Linux box with full control. Add a USB stick so you have enough space for all the utilities.

I just went through the search for mini-PCs for a project at work. The main problem is that almost all of them cool poorly, and that significantly impairs their life span.I finally found a few at the $100 price point that cooled acceptably... and they disappeared from the market shortly after I bought the test units, replaced with newer models in the $250 ballpark.
Share your own thoughts and experiences in the comments.

Can you roll your own home router?

Shiftall, the Japan-based VR hardware creator, is no longer owned by Panasonic, as the company has been effectively sold off to the Tokyo-based company CREEK & RIVER. From a report: As first noted by tech analyst and YouTuber Brad Lynch, Panasonic today announced it has transferred all shares of Shiftall to the Tokyo-based company CREEK & RIVER Co., Ltd., which specializes in outsourcing, consulting, content management and distribution services. Acquired by Panasonic in 2018, Shiftall primarily focused on niche consumer devices, but shifted over the years to focusing on VR hardware, such as its MeganeX PC VR headset, HaritoraX wireless body trackers, FlipVR motion controllers, and mutalk soundproof microphones.

An anonymous reader quotes a report from Ars Technica: Comcast has reluctantly agreed to discontinue its "Xfinity 10G Network" brand name after losing an appeal of a ruling that found the marketing term was misleading. It will keep using the term 10G in other ways, however. Verizon and T-Mobile both challenged Comcast's advertising of 10G, a term used by cable companies since it was unveiled in January 2019 by industry lobby group NCTA-The Internet & Television Association. We wrote in 2019 that the cable industry's 10G marketing was likely to confuse consumers and seemed to be a way of countering 5G hype generated by wireless companies.

10G doesn't refer to the 10th generation of a technology. It is a reference to potential 10Gbps broadband connections, which would be much faster than the actual speeds on standard cable networks today. The challenges lodged against Comcast marketing were filed with the advertising industry's self-regulatory system run by BBB National Programs. BBB's National Advertising Division (NAD) ruled against Comcast in October 2023, but Comcast appealed to the National Advertising Review Board (NARB). The NARB announced its ruling today, agreeing with the NAD that "Comcast should discontinue use of the term 10G, both when used in the name of the service itself ('Xfinity 10G Network') as well as when used to describe the Xfinity network. The use of 10G in a manner that is not false or misleading and is consistent with the panel decision is not precluded by the panel recommendations."

Comcast agreed to make the change in an advertiser's statement that it provided to the NARB. "Although Comcast strongly disagrees with NARB's analysis and approach, Comcast will discontinue use of the brand name 'Xfinity 10G Network' and will not use the term '10G' in a manner that misleadingly describes the Xfinity network itself," Comcast said. Comcast said it disagrees with "the recommendation to discontinue the brand name" because the company "makes available 10Gbps of Internet speed to 98 percent of its subscribers upon request." But those 10Gbps speeds aren't available in Comcast's typical service plans and require a fiber-to-the-home connection instead of a standard cable installation. Comcast said it may still use 10G in ways that are less likely to confuse consumers. "Consistent with the panel's recommendation... Comcast reserves the right to use the term '10G' or 'Xfinity 10G' in a manner that does not misleadingly describe the Xfinity network itself," the company said.

According to Neuralink founder Elon Musk, the first human received an implant from the brain-chip startup on Sunday and is recovering well. "Initial results show promising neuron spike detection," Musk added. Reuters reports: The U.S. Food and Drug Administration had given the company clearance last year to conduct its first trial to test its implant on humans. The startup's PRIME Study is a trial for its wireless brain-computer interface to evaluate the safety of the implant and surgical robot. The study will assess the functionality of the interface which enables people with quadriplegia, or paralysis of all four limbs, to control devices with their thoughts, according to the company's website.

AT&T, Google and Vodafone are investing a total of $206.5 million in AST SpaceMobile, a satellite manufacturer that plans to be the first space-based network to connect standard mobile phones at broadband speeds. Fierce Wireless reports: AST SpaceMobile claims it invented the space-based direct-to-device market, with a patented design facilitating broadband connectivity directly to standard, unmodified cellular devices. In a press release, AST SpaceMobile said the investment from the likes of AT&T, Google and Vodafone underscores confidence in the company's technology and leadership position in the emerging space-based cellular D2D market. There's the potential to offer connectivity to 5.5 billion cellular devices when they're out of coverage.

Bolstering the case for AST SpaceMobile, Vodafone and AT&T placed purchase orders -- for an undisclosed amount -- for network equipment to support their planned commercial services. In addition, Google and AST SpaceMobile agreed to collaborate on product development, testing and implementation plans for SpaceMobile network connectivity on Android and related devices. AST SpaceMobile boasts agreements and understandings with more than 40 mobile network operators globally. However, it's far from alone in the D2D space. Apple/Globalstar, T-Mobile/SpaceX, Bullitt and Lynk Global are among the others.

"Researchers at the University of Sydney Nano Institute have developed a small silicon semiconductor chip that combines electronic and photonic (light-based) elements," reports SciTechDaily.

"This innovation greatly enhances radio-frequency (RF) bandwidth and the ability to accurately control information flowing through the unit." Expanded bandwidth means more information can flow through the chip and the inclusion of photonics allows for advanced filter controls, creating a versatile new semiconductor device. Researchers expect the chip will have applications in advanced radar, satellite systems, wireless networks, and the roll-out of 6G and 7G telecommunications and also open the door to advanced sovereign manufacturing. It could also assist in the creation of high-tech value-add factories at places like Western Sydney's Aerotropolis precinct.

The chip is built using an emerging technology in silicon photonics that allows the integration of diverse systems on semiconductors less than 5 millimeters wide. Pro-Vice-Chancellor (Research) Professor Ben Eggleton, who guides the research team, likened it to fitting together Lego building blocks, where new materials are integrated through advanced packaging of components, using electronic 'chiplets'.... Dr Alvaro Casas Bedoya, Associate Director for Photonic Integration in the School of Physics, who led the chip design, said the unique method of heterogeneous materials integration has been 10 years in the making. "The combined use of overseas semiconductor foundries to make the basic chip wafer with local research infrastructure and manufacturing has been vital in developing this photonic integrated circuit," he said. "This architecture means Australia could develop its own sovereign chip manufacturing without exclusively relying on international foundries for the value-add process...."

The photonic circuit in the chip means a device with an impressive 15 gigahertz bandwidth of tunable frequencies with spectral resolution down to just 37 megahertz, which is less than a quarter of one percent of the total bandwidth.

Verizon is writing down the value of its business services division by $5.8 billion, a sign of the company's declining enterprise operations. From a report: The wireless carrier said in a filing Wednesday that the non-cash goodwill impairment charge was due to "secular declines, as well as continuing competitive and macroeconomic pressure." As a result of the impairment, Verizon said the balance of its business unit was $1.7 billion at the end of 2023.

The decline is tied to the telecommunications giant's legacy wireline operations, which provide fixed-line communications services for businesses, through copper or fiber wires. This segment has seen demand drop considerably as its mobile business service has surged. Verizon's wireline business revenue fell 8.1% through the third quarter and is likely to stay muted in 2024, according to Bloomberg Intelligence.

An LG washing machine owner discovered that his smart home appliance was uploading an average of 3.66GB of data daily. "Concerned about the washer's internet addiction, Johnie forced the device to go cold turkey and blocked it using his router UI," reports Tom's Hardware. From the report: Johnie's initial screenshot showed that on a chosen day, the device uploaded 3.57GB and downloaded about 100MB, and the data traffic was almost constant. Meanwhile, according to the Asus router interface screenshot, the washing machine accounted for just shy of 5% of Johnie's internet traffic daily. The LG washing machine owner saw the fun in his predicament and joked that the device might use Wi-Fi for "DLCs (Downloadable Laundry Cycles)." He wasn't entirely kidding: The machine does download presets for various types of apparel. However, the lion's share of the data transferred was uploaded.

Working through the thread, we note that Johnie also pondered the possibility of someone using his washing machine for crypto mining. "I'd gladly rent our LPU (Laundry Processing Unit) by the hour," he quipped. Again, there was the glimmer of a possibility that there could be truth behind this joke. Another social media user highlighted a history of hackers taking over LG smart-connected appliances. The SmartThinQ home appliances HomeHack vulnerability was patched several weeks after being made public. A similar modern hack might use the washing machine's computer resources as part of a botnet. Taking control of an LG washing machine as part of a large botnet for cryptocurrency mining or nefarious networking purposes wouldn't be as far-fetched as it sounds. Large numbers of relatively low-power devices can be formidable together. One of the more innocent theories regarding the significant data uploads suggested laundry data was being uploaded to LG so it could improve its LLM (Large Laundry Model). It sought to do this to prepare for the launch of its latest "AI washer-dryer combo" at CES, joked Johnie.

For now, it looks like the favored answer to the data mystery is to blame Asus for misreporting it. We may never know what happened with Johnie, who is now running his LG washing machine offline. Another relatively innocent reason for the supposed high volume of uploads could be an error in the Asus router firmware. In a follow-up post a day after his initial Tweet, Johnie noted "inaccuracy in the ASUS router tool," with regard to Apple iMessage data use. Other LG smart washing machine users showed device data use from their router UIs. It turns out that these appliances more typically use less than 1MB per day.

Verizon has agreed to pay $100 million to settle a class-action lawsuit over its monthly "Administrative and Telco Recovery Charge." The telecom giant will distribute the funds to customers who submit claims, with individuals receiving up to $100 each. Though admitting no wrongdoing, Verizon said it "continues to deny that it did anything wrong." The company defended its right to impose the charge, which was recently raised from $1.95 to $3.30 per month per line, and warned it may increase the fee again in the future. Settlement emails are still going out to eligible customers, who have until April 15 to file.

Security researchers warned Apple as early as 2019 about vulnerabilities in its AirDrop wireless sharing function that Chinese authorities claim they recently used to track down users of the feature, the researchers told CNN, in a case that experts say has sweeping implications for global privacy. From a report: The Chinese government's actions targeting a tool that Apple customers around the world use to share photos and documents -- and Apple's apparent inaction to address the flaws -- revive longstanding concerns by US lawmakers and privacy advocates about Apple's relationship with China and about authoritarian regimes' ability to twist US tech products to their own ends.

AirDrop lets Apple users who are near each other share files using a proprietary mix of Bluetooth and other wireless connectivity without having to connect to the internet. The sharing feature has been used by pro-democracy activists in Hong Kong and the Chinese government has cracked down on the feature in response. A Chinese tech firm, Beijing-based Wangshendongjian Technology, was able to compromise AirDrop to identify users on the Beijing subway accused of sharing "inappropriate information," judicial authorities in Beijing said this week. Although Chinese officials portrayed the exploit as an effective law enforcement technique, internet freedom advocates are urging Apple to address the issue quickly and publicly.

An anonymous reader quotes a report from NBC News: Touchscreens are going hands-free with a new device that allows users to scroll through smartphones using only their tongues. MouthPad^, a retainer-like trackpad chip that sits on the roof of the mouth, made its debut at the Consumer Electronics Show this week. It can sense tongue movements, allowing users to scroll, type, make calls and even play chess with a swipe or a click of their tongue. "It is a mouse for your mouth," Corbin Halliwill, a software engineer at Augmental, the company that created the device, said.

Augmental created MouthPad^ to be a helpful tool to those living with disabilities, especially those with a hand impairment or paralysis. It connects to any tablet, phone or computer through Bluetooth. [...] The Augmental team has been developing its working prototype for about two years, mostly fine-tuning controls and applying filters so the device can work even if it picks up saliva or water. The product is expected to hit the market later this year, and early access is available on their website now. [...] The MouthPad^ is clear around the teeth, and the center is a golden touchpad that is the contact point for the tongue. Inside there is also a force sensor that picks up left and right clicks or could be mapped to other hotkey options. On the side, a small bump that holds the Bluetooth antenna and wireless charging battery sticks out and lays against the cheek.

Augmental doesn't recommend leaving it in for meals, but it is safe to drink with it in -- Halliwill said he wears it in the office while drinking water and his morning coffee. The company hopes to build the technology out in the near future, bringing new possibilities for users in the coming months. Some additions may include voice and wheelchair control. The battery now lasts about five hours, but Augmental hopes to extend it to eight in their next version.You can watch the trailer for MouthPad^ here.

According to Bloomberg, Apple's AirDrop feature has been cracked by a Chinese state-backed institution to identify senders who share "undesirable content". MacRumors reports: AirDrop is Apple's ad-hoc service that lets users discover nearby Macs and iOS devices and securely transfer files between them over Wi-Fi and Bluetooth. Users can send and receive photos, videos, documents, contacts, passwords and anything else that can be transferred from a Share Sheet. Apple advertises the protocol as secure because the wireless connection uses Transport Layer Security (TLS) encryption, but the Beijing Municipal Bureau of Justice (BMBJ) says it has devised a way to bypass the protocol's encryption and reveal identifying information.

According to the BMBJ's website, iPhone device logs were analyzed to create a "rainbow table" which allowed investigators to convert hidden hash values into the original text and correlate the phone numbers and email accounts of AirDrop content senders. The "technological breakthrough" has successfully helped the public security authorities identify a number of criminal suspects, who use the AirDrop function to spread illegal content, the BMBJ added. "It improves the efficiency and accuracy of case-solving and prevents the spread of inappropriate remarks as well as potential bad influences," the bureau added.

It is not known if the security flaw in the AirDrop protocol has been exploited by a government agency before now, but it is not the first time a flaw has been discovered. In April 2021, German researchers found that the mutual authentication mechanism that confirms both the receiver and sender are on each other's address book could be used to expose private information. According to the researchers, Apple was informed of the flaw in May of 2019, but did not fix it.

home-electro.com shares a report from Engadget: On Sunday night Samsung held its annual First Look event at CES 2024, where the company teased the world's first transparent MicroLED display. While there's still no word on how much it costs or when this tech will find its way into retail devices, Samsung showcased its transparent MicroLED display side-by-side next to transparent OLED and transparent LCD models to really highlight the differences between the tech. Compared to the others, not only was the MicroLED panel significantly brighter, it also featured a completely frameless design and a more transparent glass panel that made it easier to see objects behind it. LG also unveiled a similar piece of tech: the company's "first wireless transparent OLED TV." It's called the OLED T and supports 4K resolution and LG's wireless transmission tech for audio and video.

You can watch a demo of Samsung's transparent microLED screen on YouTube.

At CES, LG on Monday unveiled the OLED T, or as the firm describes it, "the first wireless transparent OLED TV," with 4K resolution and LG's wireless transmission tech for audio and video. Engadget: The unit also features a contrast screen that rolls down into a box at its base that you can raise or lower with the press of a bottom. The OLED T is powered by LG's new Alpha 11 AI processor with four times the performance of the previous-gen chip. The extra power offers 70 percent greater graphics performance and 30 percent faster processing speeds, according to the company.

The OLED T model works with the company's Zero Connect Box that debuted on last year's M3 OLED that sends video and audio wirelessly to the TV. You connect all of your streaming devices and game consoles to that box rather than the television. The OLED T's base houses down-firing speakers, which sound surprisingly good, as well as some other components. There are backlights as well, but you can turn those on for a fully-transparent look. LG says the TV will come in standalone, against-the-wall and wall-mounted options. No word on when the TV will go on sale, or how much it would cost.

The Wi-Fi Alliance is now starting to certify devices that use the latest generation of wireless connectivity, and the goal is to make sure these devices work with each other seamlessly. Android Central: Basically, the certification allows router brands and device manufacturers to guarantee that their products will work with other Wi-Fi 7 devices. Qualcomm, for its part, is announcing that it has several designs that leverage Wi-Fi 7, and that it achieved the Wi-Fi Alliance certification -- dubbed Wi-Fi Certified 7 -- for the FastConnect 7800 module that's baked into the Snapdragon 8 Gen 3 and 8 Gen 2, and the Networking Pro portfolio.

Wi-Fi Certified 7 is designed to enable interoperability, and ensure that devices from various brands work without any issues. In addition to Qualcomm, the likes of MediaTek, Intel, Broadcom, CommScope, and MaxLinear are also picking up certifications for their latest networking products. I chatted with Andy Davidson, Sr. Director of Technology Planning at Qualcomm, ahead of the announcement to understand a little more about how Wi-Fi 7 is different. Wi-Fi 7 uses the 6GHz band -- similar to Wi-Fi 6E -- but introduces 320Mhz channels that have the potential to deliver significantly greater bandwidth. Wi-Fi 7 also uses a clever new feature called Multi-Link Operation (MLO) that lets devices connect to two bands at the same time, leading to better signal strength and bandwidth. Further reading: Wi-Fi 7 Signals the Industry's New Priority: Stability.

CNN reports that some Verizon customers "might have found an unexpected surprise in the mail this week: An opportunity to receive a refund as part of a proposed $100 million settlement from a class-action lawsuit." Eligible customers are receiving postcards or emails alerting them to file a claim by April 15 to receive up to $100, which is the result of the lawsuit accusing Verizon of charging fees that were "unfair and not adequately disclosed."

At issue is Verizon's "administrative charge," which the plaintiffs said were "misleading" because that fee wasn't disclosed in their plan's advertised monthly price and were charged in a "deceptive and unfair manner." Verizon has denied the claims and said in a statement that it "clearly identifies and describes its wireless consumer admin charge multiple times during the sales transaction, as well as in its marketing, contracts and billing." A company spokesperson said that the charge "helps our company recover certain regulatory compliance and network related costs."
"The payout is at least $15," adds CNN, "and might be more depending on how long the customer used Verizon and the number of customers who file a claim."

A cartel in the embattled central Mexico state of Michoacan set up its own makeshift internet antennas and told locals they had to pay to use its wifi service or they would be killed, according to prosecutors. New submitter awwshit shares a story: Dubbed "narco-antennas" by local media, the cartel's system involved internet antennas set up in various towns built with stolen equipment. The group charged approximately 5,000 people elevated prices between 400 and 500 pesos ($25 and $30) a month, the Michoacan state prosecutor's office told the Associated Press. That meant the group could rake in about $150,000 a month. People were terrorized "to contract the internet services at excessive costs, under the claim that they would be killed if they did not," prosecutors said, though they did not report any such deaths. Local media identified the criminal group as a faction known as Los Viagras. Prosecutors declined to say which cartel was involved because the case was still under investigation, but they confirmed Los Viagras dominates the towns forced to make the wifi payments.

LG touts AI for its 2024 OLED TVs, but don't expect AI assistants onscreen. The Alpha 11 processor in LG's new G4 and M4 series aims to sharpen clarity, color and image quality. The G4 features LG's Micro Lens Array technology for enhanced brightness. The M4 adopts 2023's wireless connectivity to eliminate unsightly cables. The Verge adds: So the AI supposedly now understands creative intent, according to LG, and can adjust your TV's image settings accordingly. Picture purists can always ignore and disable these AI modes, but many people inevitably leave them on -- so if the upgrades are noticeable, they'll be a difference maker for those customers.

Multi-link operations and the 6-GHz band promise more reliability than before. From a report: The key to a future Wi-Fi you can depend on is something called multi-link operations (MLO). "It is the marquee feature of Wi-Fi 7," says Kevin Robinson, president and CEO of the Wi-Fi Alliance. MLO comes in two flavors. The first -- and simpler -- of the two is a version that allows Wi-Fi devices to spread a stream of data across multiple channels in a single frequency band. The technique makes the collective Wi-Fi signal more resilient to interference at a specific frequency. Where MLO really makes Wi-Fi 7 stand apart from previous generations, however, is a version that allows devices to spread a data stream across multiple frequency bands. For context, Wi-Fi utilizes three bands-2.5 gigahertz, 5 GHz, and as of 2020, 6 GHz.

Whether MLO spreads signals across multiple channels in the same frequency band or channels across two or three bands, the goals are the same: dependability and reduced latency. Devices will be able to split up a stream of data and send portions across different channels at the same time -- which cuts down on the overall transmission time -- or beam copies of the data across diverse channels, in case one channel is noisy or otherwise impaired. MLO is hardly the only feature new to Wi-Fi 7, even if industry experts agree it's the most notable. Wi-Fi 7 will also see channel size increase from 160 megahertz to a new maximum of 320 MHz. Bigger channels means more throughput capacity, which means more data in the same amount of time.

That said, 320-MHz channels won't be universally available. Wi-Fi uses unlicensed spectrum -- and in some regions, contiguous 320-MHz chunks of unlicensed spectrum don't exist because of other spectrum allocations. In cases where full channels aren't possible, Wi-Fi 7 includes another feature, called puncturing. "In the past, let's say you're looking for 320 MHz somewhere, but right within, there's a 20-MHz interferer. You would need to look at going to either side of that," says Andy Davidson, senior director of technology planning at Qualcomm. Before Wi-Fi 7, you'd functionally be stuck with about a 160-MHz channel either above or below that interference.

Agence France-Press reports: The world of Chinese chess is in uproar over rumors of cheating and a bad behavior scandal that saw the national champion stripped of his title on Monday after a victory celebration ended with him defecating in a hotel bathtub. Xiangqi, or Chinese chess, has been hugely popular for hundreds of years across Asia -- and 48-year-old Yan Chenglong beat dozens of contenders last week to win the title of "Xiangqi King" at a national tournament hosted by the Chinese Xiangqi Association. But his joy was short-lived, with the CXA on Monday announcing that Yan would have his title revoked and prize money confiscated after had been caught "disrupting public order" and displaying "extremely bad character."

The association was also forced to address rumors circulating online that Yan had cheated during the competition by using anal beads equipped with wireless transmitters to send and receive signals. Yan allegedly clenched and unclenched rhythmically to communicate information about the chess board via code to a computer, which then sent back instructions on what moves to make in the form of vibrations, according to reports circulating on the Chinese social site Weibo. "Based on our understanding of the situation, it is currently impossible to prove that Yan engaged in cheating via 'anal beads' as speculated on social media," the CXA said. But he was still stripped of his title and banned from playing for a year after his celebrations went wayward.

"Yan consumed alcohol with others in his room on the night of the 17th, and then he defecated in the bathtub of the room he was staying in on the 18th, in an act that damaged hotel property, violated public order and good morals, had a negative impact on the competition and the event of Xiangqi, and was of extremely bad character," the association said. The association did not disclose the amount of prize money Yan was forfeiting, but Xiangqi tournaments often promise winners tens of thousands of yuan (thousands of dollars).