The ZeroTier network hypervisor is a self-contained network virtualization engine that implements an Ethernet virtualization layer similar to VXLAN built atop a cryptographically secure global peer-to-peer network. It provides advanced network virtualization and management capabilities on par with an enterprise SDN switch, but across both local and wide area networks and connecting almost any kind of app or device.

MikroTik has added ZeroTier to RouterOS v7.1rc2 as a separate package for the ARM/ARM64 architecture. 

Zerotier has been upgraded to 1.14.0 on 7.17rc6 ROS version.

Wait, so what can I use it for?

• Hosting a game server at home (useful for LAN only games) or simply creating a LAN party with your friends;
• Accessing LAN devices behind NAT directly;
• Accessing LAN devices via SSH without opening port to the Internet;

There are two ways to run Caddy as a service on Windows: sc.exe or WinSW.

sc.exe

To create the service, run:

sc.exe create caddy start= auto binPath= "YOURPATH\caddy.exe run"

(replace YOURPATH with the actual path to your caddy.exe)

To start:

sc.exe start caddy

To stop:

sc.exe stop caddy

Age-verification laws target operating systems because apparently teenagers having root access is now a safeguarding crisis. //

Big Brother is only going to get worse. With the US Congress advancing its own App Store Accountability Act, and more state lawmakers floating copycat bills, OS‑level age verification is poised to become a standard part of how Americans set up phones, tablets and PCs within the next few years. Happy, happy, joy, joy. //

These kinds of laws don't work. They've never worked. Prohibition failed in the United States. I kept reading Playboy, and these days, people use virtual private networks (VPN)s to get around the restrictions of the UK’s Online Safety Act. However, as the Electronic Frontier Foundation (EFF) notes, VPNs are far from a perfect solution.

The real problem is this hodgepodge of laws; it's the growth of the surveillance state.

Currently, by far the best Free World reactor is the Korean APR1400. The Korean’s can build an APR1400 for less than $3000/kW in Korea and have built four in the UAE for around $4500/kW. The APR1400 was our best, maybe only, hope for leading Western nuclear out of a prohibitively expensive regulatory morass.

The APR1400 is based on the Combustion Engineering (CE) System 80+ design, the best of the American PWR’s. In 1997, Kepco licensed that design. The Koreans demanded and got a Total Technology Transfer Agreement. No strings attached. They could use the IP anyway they wanted. CE’s back was against the wall. The tort lawyers had embroiled CE in an asbestos suit and they were going bankrupt. The cash from the Koreans kept CE alive for another couple of years. In 2000, Westinghouse acquired CE and became the licensor.

Westinghouse’s offering is the AP1000. The AP1000 is a cramped, nearly unmaintainable reactor which will cost you somewhere around $15,000/kW. Westinghouse knows it can’t compete with the APR1400. So Westinghouse has colluded with the DOE to prevent the Koreans from exporting the APR1400 from Korea. Westinghouse may have lousy engineers but they’ve got great lawyers.

Free QR Code Generator Online

THE MOST COMPACT CAULK GUN - At just 4" it's no bigger than the tube of caulk it's dispensing. Cut off the excess tubing to reach even tighter spaces. No more oversized, heavy caulk guns that limit your reach.

This serene view from the coast of Sweden looks across the Baltic sea and compresses time, presenting the passage of one night in a single photograph. From sunset to sunrise, moonlight illuminates the creative sea and skyscape. Fleeting clouds, fixed stars, and flowing northern lights leave their traces in planet Earth's sky. To construct the timelapse image, 3296 video frames were recorded on the night of a nearly full moon between 7:04pm and 6:35am local time. As time progresses from left to right, a single column of pixels was taken from the corresponding individual frame and combined in sequence into a single digital image 3296 pixels wide.

Recorded during 2017, timelapse sequences from the International Space Station are compiled in this serene video of planet Earth at Night. Fans of low Earth orbit can start by enjoying the view as green and red aurora borealis slather up the sky. The night scene tracks from northwest to southeast across North America, toward the Gulf of Mexico and the Florida coast. A second sequence follows European city lights, crosses the Mediterranean Sea, and passes over a bright Nile river in northern Africa.

Just two weeks ago, dark skies over the desert in northern Iran held this alluring celestial vista. The dramatic digital mosaic finds the Moon and Mars alongside the Milky Way's dusty rifts, stars, and nebulae. Captured through a series of exposures to cover a range in brightness, that night's otherwise Full Moon is immersed in Earth's shadow. It actually appears fainter and redder than the Red Planet itself during the widely watched total lunar eclipse. For cosmic tourists, the skyscape also includes the Lagoon (M8) and Trifid (M20) nebulae and planet Saturn shining against the Milky Way's pale starlight.

What's that green streak in front of the Andromeda galaxy? A meteor.

China is indeed churning out solar panels, wind turbines, electric vehicles and batteries that flood global markets — proof, advocates say, of an inevitable green transition.

Yet these supposed marvels are forged amid overwhelming and surging use of fossil fuels, particularly coal.

Its real energy achievements — dramatic energy ramp-ups to fuel prosperity, and advances in nuclear power — remain overlooked. //

Crucially, China’s solar-panel production depends on coal: Every one of its silicon smelters requires its own coal-fired power station. //

While China added unprecedented solar and wind capacity in 2025, it also planned an unprecedented number of new coal power plants.

China remains the world’s top coal consumer, with fossil fuels supplying over 87% of its primary energy.

Renewables’ share was 40% in 1971 when China was poor, but plummeted to 7.5% in 2011 — and has risen slowly over the next 13 years, to just over 10% in 2024. //

Second, China is surging ahead in technologies that could truly decarbonize the planet at scale: nuclear fission and fusion.

In the West, traditional nuclear has grown prohibitively expensive, with US construction costs tripling since the mid-1980s.

The US has built only three new nuclear plants this century, at enormous cost and with 11-year timelines.

Contrast this with China, where reactors are completed in five years and costs have halved since 2000.

China has expanded from three reactors in 2000 to 60 today, with 37 under construction (nearly half the global total), 42 planned and 146 proposed. //

This isn’t renewables redux; it’s a race for abundant energy.

And the West risks awakening to a world powered by Beijing’s reactors, not its own ingenuity.

Green China is a sham — but it’s time for the West to emulate Beijing’s real playbook, by ramping up energy use and investing in nuclear R&D.

Resistor Color Code Calculator is an interactive online Calculator to calculate the resistance value based on color bands or color-coded stripes on a resistor. //

EIA PREFERRED OR STANDARD RESISTOR VALUE SERIES
E SERIES TOLERANCE
(SIG FIGS) NUMBER OF VALUES IN EACH DECADE

Amazon has just changed the encryption used for Kindle books on older e-readers without a software update. Any Kindle with software 5.18.5 or higher is now downloading new e-books using the KFX-ZIP format, which is not compatible with the encryption broken by 3rd-party tools for popular software such as Calibre and the DeDRM plugin.

Prior e-books using old Kindle software were downloaded as KFX files, which were easily backed up to a user’s computer via USB cable, and then had their encryption broken to load the books on other devices or to create a local backup of prior purchases.

The new KFX-Zip files are available on Kindle e-readers from the 7th generation through the 11th generation. Prior Kindles from the 6th generation and below do not yet download e-books using the new book encryption, but it remains to be seen whether Amazon will issue a mandatory software update to plug the loophole that could break digital rights management.

The National Institute of Standards and Technology (NIST), founded in 1901, is now part of the U.S. Department of Commerce. NIST develops industry-wide frameworks and guidelines, including a range of cybersecurity recommendations and resources. It advises against the use of knowledge-based authentication methods, such as personal questions, due to their susceptibility to being easily guessed. Instead, NIST recommends three simple principles for securing passwords, PINs, and passphrases: they should be long, complex, and random.

• Long -- 15 characters minimum
• Complex -- hard for computers to guess, easy for humans to remember
• Random -- if a human can create it a computer can guess it.

Ethernet switches aren’t exactly made for audio. And yet, they are the backbone of the IP audio networked facility. They have the power to make or break, literally, your broadcast operation. Here are a few things we’ve learned over the years in working with switches.

IP audio networks for broadcast are built on multicast, WheatNet IP audio included. Ethernet switches do not natively manage multicast traffic. They send multicast packets to every port on the switch, whether the devices connected to those ports requested streams or not. When more traffic arrives at the port than the device can handle, flooding occurs and that results in audio dropouts or complete loss of audio.

For this and other reasons, managed switches are best for broadcast. These Ethernet switches have control, security, and monitoring features that unmanaged switches lack. Among the most important are two key IGMP (Internet Group Management Protocol) features for managing audio packets: IGMP Snooping and an IGMP Querier.

Toto "Africa" with the names of all the nations of Africa

The Russian Transport Ministry is blaming the Ukrainian military for the massive explosion that sent the 93,000-ton liquid natural gas tanker Arctic Metagaz to the bottom of the Mediterranean. The Arctic Metagaz, a sanctioned Russian-flagged LNG tanker, was en route from Tieshan, China, to Port Said, Egypt with a cargo of 61,000 tons of LNG. When she was about 150 miles off Sirte, Libya, she lit up the Mediterranean sky.

This calculator is used to size pumps. The calculator determines the total differential head of the pump and the absorbed power required. Frictional and static pressure drops in the suction and discharge lines are also calculated as well as the NPSH available.

Clone the item back to your individual vault by using the  Options menu to select Clone. This can be done from the Admin Console or, if you are an Owner, Admin, or have Manage collection access to the collection the item is kept in, it can also be done from your Vaults view.

Delete the item from the organization vault by selecting Delete from the  Options menu.

For Raspberry Pi clusters, ham radio
digital modes, logging infrastructure, or anything where precise
timestamping matters, it’s noise.

A Stratum 1 NTP server solves this permanently: GPS satellites carry atomic-clock-derived time. A GPS receiver with a pulse-per-second (PPS) signal gives you sub-microsecond accuracy. Your entire network syncs directly from that, with no upstream dependency, no internet requirement, no pool latency.

Here’s how to build one for under $20.