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LPI

DevOps Tools Introduction #06: Container Basics

Container virtualization is one of the major technologies behind modern software architectures. While the concept of container virtualization is rather old, new tools extend the pure virtualization components with numerous features that facilitate the deployment of containerized software. Docker is ... Read more The post DevOps Tools Introduction #06: Container Basics appeared first on Linux Professional Institute (LPI).

LWN.net

GNU Awk 5.4.0 released

Version 5.4.0 of GNU awk (gawk) has been released. This is a major release with a change in gawk's default regular-expression matcher: it now uses MinRX as the default regular-expression engine. This matcher is fully POSIX compliant, which the current GNU matchers are not. In particular it follows POSIX rules for finding the longest leftmost submatches. It is also more strict as to regular expression syntax, but primarily in a few corner cases that normal, correct, regular expression usage should not encounter. Because regular expression matching is such a fundamental part of awk/gawk, the original GNU matchers are still included in gawk. In order to use them, give a value to the GAWK_GNU_MATCHERS environment variable before invoking gawk. [...] The original GNU matchers will eventually be removed from gawk. So, please take the time to notice and report any issues in the MinRX matcher, so that they can be ironed out sooner rather than later. See the release announcement for additional

LWN.net

Firefox 148.0 released

Version 148 of Firefox has been released. The most notable change in this release is the addition of a "Block AI enhancements" option that allows turning off "new or current AI enhancements in Firefox, or pop-ups about them" with a single toggle. With this release, Firefox now supports the Trusted Types API to help prevent cross-site scripting attacks as well as the Sanitizer API that provides new methods for HTML manipulation. See the release notes for developers for changes that may affect web developers or those who create Firefox add-ons.

LWN.net

[$] As ye clone(), so shall ye AUTOREAP

The facilities provided by the kernel for the management of processes have evolved considerably in the last few years, driven mostly by the advent of the pidfd API. A pidfd is a file descriptor that refers to a process; unlike a process ID, a pidfd is an unambiguous handle for a process; that makes it a safer, more deterministic way of operating on processes. Christian Brauner, who has driven much of the pidfd-related work, is proposing two new flags for the clone3() system call, one of which changes the kernel's security model in a somewhat controversial way.