BSD Cafe Billboard

Every single software product is dealing with the question about what to do with “AI”-generated code, but the question is particularly difficult to answer for open source operating systems like Linux distributions and the various BSDs, which often consist of a wide variety of software packages from hundreds to thousands of different developers. On top of that, they also have to ask the “AI” question for every layer of their offering, from the base install, to the official repositories, to community-run ones…

• https://www.osnews.com/story/144935/openbsd-and-slopcode-raindrop-to-a-torrent/

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ping: https://framapiaf.org/@osnews@mstdn.social/116558432820118949

Florian Obser (florian@) recently gave a BSD-NL talk entitled "Let's find out how to get predictable IPv6 addresses assigned to OpenBSD VMs".

Florian takes us on a guided tour of how inet6 autoconf actually works, with enlightening and entertaining peeks into selected piece of OpenBSD source.

At the end, we are asked to "now, draw the rest of the owl".

• https://undeadly.org/cgi?action=article;sid=20260512115225
• slides: https://www.openbsd.org/events.html#bsdnl2026
• video: https://exquisite.tube/w/38gDYhMNTNZimk3GcFnHNa

Setting up a WireGuard Tunnel on FreeBSD 15

• https://ianwwagner.com//setting-up-a-wireguard-tunnel-on-freebsd-15.html

Overview of my New Homelab Setup

• https://ianwwagner.com//overview-of-my-new-homelab-setup.html

A TLS Terminating Reverse Proxy with OpenBSD

• https://ianwwagner.com//a-tls-terminating-reverse-proxy-with-openbsd.html

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ping: https://framapiaf.org/@ianthetechie@fosstodon.org/116499327407801906

OpenBSD stories—OpenBSD/cats: the enabler :

• http://miod.online.fr/software/openbsd/stories/zaurus1.html

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ping: https://framapiaf.org/@miodvallat@hostux.social/116525872455289794

New book, released under a Creative Commons BY-NC-ND license: "Don't Get Hacked! Protecting Yourself at Home"

• https://www.cs.columbia.edu/~smb/homesec/index.html

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ping: https://framapiaf.org/@SteveBellovin@infosec.exchange/116495725390179210

I’d like to start here (as opposed to somewhere else?) by putting something on the record. Or the cassette tape, or whatever. Travan tape? LTO?

• https://www.rubenerd.au/a-hypothetical-netbsd-cyberdeck/

Hi.

Just another user of Linux (mainly Debian Sid), OpenBSD.
A "retired" IT-man, live in FRance.

A litte introduction about me on: https://huc.fr.eu.org/en/about/

We are happy to announce that The NetBSD Foundation will participate in Google Summer of Code 2026 with 5 projects!

• https://blog.netbsd.org/tnf/entry/gsoc2026_welcome_contributors

FreeBSD becoming NIST FIPS 140-3 compliant

A key component for FreeBSD becoming NIST FIPS 140-3 compliant was completed when FreeBSD upgraded from OpenSSL 3.0 to 3.5. One of the other requirements for FIPS 140-3 (and post-quantum cryptography) is having sufficient random entropy in the system to generate sufficiently random numbers. NIST SP800-90B provides some guidelines on how to achieve that…

• https://lists.freebsd.org/archives/freebsd-hackers/2026-April/006201.html

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PS: This strikes me as a significant development, which is why I am posting it here

06/29

⇒ Running pkgbasify on FreeBSD 15.1

At BSDCan 2026, I attended the pkgbase in Production: A Practical Overview talk. What impressed me was the ease with which one could upgrade from 15.0 to 15.1 etc. Included in the demonstration was pkgbasify (“Automatically convert a FreeBSD system to use pkgbase”).

• https://dan.langille.org/2026/06/29/running-pkgbasify-on-freebsd-15-1/

The SMTP mail server for the 21st century and onwards is OpenSMTPD, which is developed as an integral part of OpenBSD, but available in a portable variety too. It was one of those things that I had fully intended to do years ago, but I only got around to actually doing once there was a definite deadline to get it done. The time has come, as OpenBSD 7.9 will leave the exim package behind, and exim users will need to find a replacement before upgrading. This article describes my transition to OpenBSD's own OpenSMTPD mail server.

• https://nxdomain.no/~peter/time_for_opensmtpd.html
• https://bsdly.blogspot.com/2026/05/opensmtpd-is-mail-server-for-future.html

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ping: https://framapiaf.org/@pitrh@mastodon.social/116577188355690184

“The server feels slow.” It is the most common ticket text in the world, and the least useful. Before you can fix anything you need to know whether the box is CPU bound, memory pressured, waiting on disk, saturating a NIC, or simply running a runaway process in one jail that is starving everyone else. On jail hosts, the second half of the problem is attribution: not just what is overloaded, but which jail is responsible…

• https://blog.hofstede.it/freebsd-resource-monitoring-accounting-and-troubleshooting/

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ping: https://framapiaf.org/@Larvitz@burningboard.net/116560508989633469

See: https://jcs.org/2026/04/09/openbsd-dm250
by Joshua Stein

OpenBSD's sppp_pap_input function used attacker-controlled length fields as the bcmp comparison length for credential validation. Sending zero-length name and password fields caused bcmp to return 0 unconditionally, bypassing PAP authentication entirely. The vulnerability was introduced in 1999 and survived for 27 years before being fixed.

• https://blog.argus-systems.ai/blog/openbsd-pap-27-year-auth-bypass.html

Let's Learn Linux: Customize and use the shell environment

• https://watch.linuxrenaissance.com/w/gzg5J3EN5XCvT472GAvniS
• https://linuxrenaissance.com/courses/LPI-Learning-Material-102-500-en.pdf

Let's Learn Linux: Customize and use the shell environment — Lesson 2/3

Learn how to customize and use the shell environment in Bash — this is lesson 105.1 from the LPIC-1 exam curriculum (102-500).

• https://watch.linuxrenaissance.com/w/1oraSgNwmyFBKWSaYv54ib
• https://linuxrenaissance.com/courses/LPI-Learning-Material-102-500-en.pdf

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ping: https://framapiaf.org/@darth@watch.linuxrenaissance.com/116592507515831960

I open this post to centralise informations about AI usage into Linux.
(please, thanks to discuss without raging, fights or throlls)

See:
⇒ New Linux Kernel Rules Put The Onus On Humans For AI Tool Usage

• https://hackaday.com/2026/04/14/new-linux-kernel-rules-put-the-onus-on-humans-for-ai-tool-usage/

The purpose of this post is to summarise the various details regarding upcoming changes, improvements and new features in Linux 7.1.

See:
⇒ Linux 7.1 Lands ARM64 NEON-Accelerated CRC64-NVMe For ~6x Improvement:
Descr: Merged 13/04 were all the CRC code updates for the Linux 7.1 kernel. Most notable with that pull is an ARM64-optimized CRC64-NVMe implementation that can deliver multiple times faster performance...

• https://www.phoronix.com/news/Linux-7.1-Fast-ARM64-CRC64-NVMe

⇒ Linux 7.1 Revamps T10 PI Data Integrity Handling For Better Read Performance:
Descr: Merged 13/04 for the Linux 7.1 kernel is overhauling the T10 PI code for generating and verifying data integrity information. In turn the new code is cleaner while also allowing for better read storage performance...

• https://www.phoronix.com/news/Linux-7.1-Revamps-T10-PI

⇒ Linus Torvalds Rejects Performance Fix "Hack" & Kconfig "Terrible Things" For Linux 7.1:
Descr: While a lot of interesting new features and changes have been merged already for the Linux 7.1 merge window, two pull requests stand out so far for being rejected by Linus Torvalds and complete with his to-the-point commentary...

• https://www.phoronix.com/news/Linus-Rejects-Linux-7.1

⇒ LLM-Assisted Patches For Linux 7.1 May Have Negative Impact On 32-bit Systems:
Descr: Code now merged for the Linux 7.1 kernel may provide some negative performance implications for those still running modern Linux kernels on 32-bit hardware. A fundamental change can present cache line alignment and slab sizing implications for 32-bit Linux OS users but will provide for cleaner code with modern 64-bit computing...

• https://www.phoronix.com/news/Linux-7.1-VFS-Kino-32-bit

⇒ Linus Torvalds Merged The Code Beginning To Remove Intel 486 CPU Support In Linux 7.1:
Descr: As a follow-up to the news first-covered on Phoronix earlier this month about Linux 7.1 expected to begin removing i486 CPU support: it indeed happened. Linus Torvalds took the initial removal bits today without any fuss today for beginning the phase out of M486 / M486SX / ELAN kernel support...

• https://www.phoronix.com/news/Linux-7.1-Begins-Removing-i486

⇒ exFAT For Linux 7.1 Helps Reduce File Fragmentation, Fixes:
Descr: The exFAT file-system changes have landed for the in-development Linux 7.1 kernel...

• https://www.phoronix.com/news/Linux-7.1-exFAT

⇒ Linux 7.1 Gets Rid Of Some Unnecessary Memory Clobbers:
Descr: The x86/asm changes merged yesterday for the Linux 7.1 kernel with a few low-level improvements...

• https://www.phoronix.com/news/Linux-7.1-x86-asm

⇒ AMD EDAC Driver In Linux 7.1 Adds Support For Zen 3 Rembrandt Hardware With ECC:
Descr: The Error Detection And Correction "EDAC" subsystem updates have been merged for Linux 7.1 that deal with reporting of ECC memory errors and the like from various hardware drivers...

• https://www.phoronix.com/news/Linux-7.1-EDAC

⇒ Linux 7.1 Adds New Child Auto-Reap & PIDFD Auto-Kill Flags For clone3():
Descr: The clone3() system call in Linux 7.1 is adding three new flags for greater control over the creation of child processes...

• https://www.phoronix.com/news/Linux-7.1-clone3

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If someone has others sources of informations about this topic, please, do not hesitate to post-IT!

See: https://alfonsosiciliano.gitlab.io/posts/2026-04-09-freebsd-16-system-calls.html