Linux Magazine

Security researcher Hyunwoo Kim, who goes by the name V4bel online, discovered the vulnerability and released an abstract on GitHub about it stating, "Januscape is a use-after-free vulnerability in the shadow MMU emulation of KVM/x86." Kim continues, "It can trigger the bug with guest-side actions alone to corrupt the host kernel's shadow page, and it can threaten the guest-host isolation of KVM/x86 hosts that accept untrusted guests and expose nested virtualization, particularly multi-tenant...

There is a big movement all over the world for governments and industries to move away from "non-sovereign" software and services, as well as storage of information in countries other than their own. There are many reasons for this, some of which are tied to the huge amount of money flowing out of the country that could be redirected to people and companies inside their own country.

When the Raspberry Pi was launched in February of 2012, it was intended as an inexpensive, small computer for educational purposes. For less than $40, you could take this tiny computer home and deep dive into IT from the roots up. Soon, many projects were using it for all sorts of interesting tasks. Pi models 1, 2, and 3 supported hardware-accelerated processing if you bought a license key; thus, the Pi was often deployed as a fast media server.

© Lead Image ©Ioannis Kounadeas, Fotolia.com Author(s): We take a close look at the Socket Statistics utility ss and show why it is better than netstat for forensics, troubleshooting, and other networking tasks. Anyone who has been around Linux long enough remembers when netstat [1] was the unquestioned go-to tool for checking socket activity. Whether you needed to confirm a process was listening, trace an unexpected connection, or sanity-check a server during an outage, netstat felt dependable.

In 2019, in a small restaurant in Paris, a man set a laptop on a dinner table for two other engineers to examine. What was on it should not have existed. They were looking at a Process Design Kit, or PDK: the complete set of physical rules and transistor models used by a chip factory in the United States to manufacture silicon.

For decades, the realm of Linux system administration has been governed by a familiar set of performance metrics that, while foundational, often provide a deceptive view of reality. When an administrator logs into a struggling server, the traditional instinct is to reach for venerable tools such as top, iostat, or vmstat.

Anyone who has spent more than five minutes staring at the output of the diff command knows the struggle. Whether you're hunting for a logic bug or proofing an article, you're met with a wall of plus and minus signs, fragmented blocks, and cryptic markers. It's technically precise, but hardly the fastest way to see how your code or text documents have actually changed. Meld [1] was built to solve this problem.

If Hannah Montana brings back fond memories of your childhood, or you simply love the color pink, the new revival of Hannah Montana Linux (HML) might be just what the open source doctor ordered. Noah Cagle has revived the project, which was seen as little more than a curiosity when it first arrived on the scene. This latest iteration of the once dead distribution, "is just a re-skin of KDE Plasma." Cagle said.

Dear Reader, Open source software has always served as an equalizing force in the IT space. When one company or group gets too much power, the open source ecosystem offers a head start to others who wish to oppose that dominance. When Microsoft's monopoly looked unbreakable, IBM poured a billion US dollars into Linux to help bring it to an enterprise grade. When Google needed a way to compete with Blackberry and Windows Mobile, they purchased Android, which they built around the Linux kernel.

One Linux fact that irritates new users is that they can't simply download an arbitrary application installer file and run its setup procedure on their Linux box – after all, that's what people do on Windows boxes. Instead, you need to use the package manager of your distribution and locate the app in the available repositories. While that's good enough most of the time, sometimes you'll want to use a program that is incompatible with your Linux installation.