Live USBs are critical lifelines for persistence in Tails. Now, Tails 6.0 alerts users when underlying storage suffers ...

Historically, AppArmor and SELinux maintained mostly separate user bases: Ubuntu/Debian vs RHEL/Fedora. But with SUSE moving ...

Flatpak promises a secure runtime for Linux applications through container-like isolation, relying on bubblewrap namespaces, syscall filtering, and portal interfaces. In theory, each app should ...

Ubuntu’s shift to sudo‑rs symbolizes a broader movement. Other mission-critical tools—uutils coreutils, findutils, ...

Editors' Note: This article has been updated since its original posting. Software and hardware engineers who have to deal with byte and bit order issues know the process is like walking a maze. Though ...

Since the earliest days of microprocessors, system designers have been plagued by a problem in which the speed of the CPU's operation exceeded the bandwidth of the memory subsystem to which it was ...

In this article, we explore the optimization levels provided by the GCC compiler toolchain, including the specific optimizations provided in each. We also identify optimizations that require explicit ...

Many market sectors, such as financial trading, defense, industry automation and gaming, long have had a need for low latencies and deterministic response time. Traditionally, custom-built hardware ...

A vDSO (virtual dynamic shared object) is an alternative to the somewhat cycle-expensive system call interface that the GNU/Linux kernel provides. But, before I explain how to cook up your own vDSO, ...

In the quest to make small devices cost effective, manufacturers often need to think about reducing the memory size. One option is to find alternative implementations of the abstract data types (ADTs) ...

Asymmetric TCP/IP routing causes a common performance problem on servers that have more than one network connection. The atypical network flows created by asymmetric routes occur most often in server ...

But many other data compression tools are available to choose from in Linux. See the comprehensive compression and decompression benchmarks in Figures 2 and 3. As with gzip, the best performers are in ...