A step-by-step guide to expanding a GELI-encrypted ZFS disk for a FreeBSD bhyve VM, covering ZVOL resizing, gpart recovery and partition expansion, GELI auto-resize, and enabling ZFS autoexpand, with n... Read more ›
Many people want to know, precisely, which pieces of text are valid Rust programs, and for those that are, what they do. This group includes compiler writers, language designers, researchers, unsafe code writers, safety-critical industry assessors, and of course any Rust developer trying to understand a piece of code. Read more ›
Posted by shj on Jun 20------------------------------------------------------------------------ OpenBSD sppp_pap_input: PAP Authentication Bypass via Zero-Length bcmp ------------------------------------------------------------------------ Affected: OpenBSD all versions through 7.6 (fixed in -current) Vendor: OpenBSD Severity: High Reporter: Argus Date: 2026-06-16 1. SUMMARY ========== The sppp_pap_input() function in sys/net/if_spppsubr.c uses... Read more ›
Today – which is 2026/06/19 – is another anniversary of FreeBSD Day. Because of that kinda special ‘holiday’ I also prepared something special … FreeBSD project slowly but successfully is moving forward into the future with PKGBASE way of things … and freebsd-update(8) days are limited as it this tool will be deprecated and gone […] Read more ›
Why moving from garbage-collected languages to memory-safe systems programming is the ultimate career level-up. Read more ›
Discover the latest features of OpenBSD 7.9, including delayed hibernation and enhanced graphics driver updates for improved performance and stability. The post appeared first on . Read more ›
OpenBSD's sppp(4) subsystem handles synchronous PPP links, the backbone of PPPoE connectivity. When a peer connects, the PPP handshake can require PAP (Password Authentication Protocol) credentials before the link reaches STATE_OPENED. The check that decides whether to accept or reject those credentials has been broken since it was first imported into the OpenBSD source tree in July 1999. Read more ›
<![CDATA[Date: June 16, 2026 The FreeBSD Release Engineering Team is pleased to announce the availability of FreeBSD 15.1-RELEASE. This is the second release of the stable/15 branch. Some of the highlights: The iwlwifi(4) and other LinuxKPI based wireless networking drivers are now based on Linux v7.0. FreeBSD cloud images using packaged base systems now include pkg(8), and support automatic base system package updates on first boot. A new kern.sched.name tunable allows the kernel scheduler t... Read more ›
agents.md swapper. Contribute to ProximalEnergy/whitman development by creating an account on GitHub. Read more ›
Posted by shj on Jun 20------------------------------------------------------------------------ OpenBSD mpls_do_error: Remote Kernel Stack Disclosure via MPLS Label Stack Over-read ------------------------------------------------------------------------ Affected: OpenBSD -current prior to 2026-06-18 (fixed in -current) Vendor: OpenBSD Severity: Medium Reporter: Argus Systems Date: 2026-06-12 CVE: CVE-2026-56099 1. SUMMARY ========== The... Read more ›
FreeBSD Jails and Linux LXC both provide operating system-level virtualization, but their design philosophies differ significantly. This article explores how each approach handles isolation, security, observability, ZFS integration, and operational complexity to help infrastructure teams determine which model best fits their environment. The post appeared first on . Read more ›
In May 2026, the Bun team did something the software industry has been whispering about for years: they rewrote their entire runtime from Zig to Rust. Not over the course of a year with a dedicated team. In six days. Using AI agents. At nearly a million lines of code, Read more ›
Earlier studies showed that Opus 4.6, GPT 5.4, Gemini 3.1-pro-preview, Deepseek R1-0528, and Qwen 3.6-plus were unable to find two of the vulnerabilities discussed in the Mythos blog post without extremely revealing hints. This study continues the previous experiments with 26 distinct Claude-4.6/4.7 and GPT-5.4/5.5 combinations and different context window sizes and reasoning efforts. It found that higher reasoning effort, and even later models, are not always better for triaging security res... Read more ›
The Best Price Tracker leaderboard reads clean if you only look at the top line. Read more ›
Welcome to Technology Short Take 197! I’ve been traveling for business for the last week, so this Technology Short Take has a tad fewer links than I typically include. Even so, I still have links on radical new network designs, the impacts of AI on code security, things beginners get wrong about AWS IAM, and more! Let’s get into the content. Networking This story about —along with —was intriguing to me. I’m not a networking expert, but designing networks with quasi-random connections between ... Read more ›
Overview Earlier this year, a team at Praetorian was building Constantine, our automated 0-day discovery engine. I wanted to find techniques worth folding into it, so on the side I started poking at the FreeBSD kernel with Claude Code, running on Opus 4.6, which was the latest Opus model at the time. A few days […] The post appeared first on <a href=" Read more ›
The opening post of a Low-Level Systems Design in Rust series, arguing that the biggest performance win is structural: replace a shared multi-producer cursor that serializes cores through cache-coherence traffic with one private single-writer SPSC ring per producer, converting quadratic writer contention into a cheap O(N) consumer sweep. Read more ›