Reading up on OpenBSD
6 deep · digging since feb 03
- sudo and OpenDoas timestamp files
The author added a TTY session start‑time check to sudo’s timestamp files to prevent replay attacks, and the fix was merged into sudo 1.8.22 in 2017.
- Divan Visagie
Using FreeBSD as a primary OS for a summer revealed BSD’s diverse family, ZFS’s replaceable‑drive OS installs, focused‑OS benefits, and OpenBSD’s pledge security model.
- Repeating Ourselves Less with M4 - Nemin's Blog
The author demonstrates using m4 and sed to generate shorter, maintainable OpenBSD httpd.conf files via macros, reducing repetitive configuration blocks.
- invlpg – Premature Optimization is Fun Sometimes
A developer describes optimizing a 12KB ping-monitoring ring buffer down to 4KB using bitfields and tagged unions purely for enjoyment, despite the application not being memory-constrained.
- OpenBSD 7.9 | Hacker News
OpenBSD 7.9 released May 19, 2026, adds experimental WiFi 6, IPv6 SLAAC by default, and mitigates floating-point state leakage on AMD Zen.
- Todd C. Miller – Sudo maintainer for over 30 years
Todd C. Miller, the long-time maintainer of the critical sudo utility, is seeking sponsorship to continue development and maintenance.