On the rename system call.

Some screenshots I've posted to social media of my Jellyfin media server, including collections and playlists geared around holidays. Source

ftp6proxy 0.5 fixes an error and now calls chdir() before entering chroot

pomavold 0.9 fixes an error and now calls chdir() before entering chroot

I was frustrated Thursday evening, and Friday morning. On Thursday, I got home from work and saw a message saying a service I owned was spitting out 500's and completely fucked. Great. I knew exactly…

LLMs make producing code cheaper, but they do not make changing production systems cheaper. In order to keep production running a Developer Experience revolution will need to take place.

There is a version of a bug that is more frustrating than an unfixed one. It is a bug that was fixed, correctly, and then sat behind glass for a year while the people it was hurting kept reporting…

I tried out to follow the PR Agent Azure installation . Normally you would use managed identity in order to avoid running things in user account, so I after a few sessions of edit, Claude, ChatGPT…

Shortly after my daughter graduated college, we bought her a new Macbook Air M4. It was light years ahead of the computer we bought her before college, a Macbook Air from early 2015. That one had the…

From people far smarter than me on computing, countering those stories about “AIs” being so powerful they escaped their computers and went on to other ones. The thread began with a CEO who had run…

I recently spent more time than I would like to admit trying to convert a Btrfs filesystem from free-space cache v1 to v2. The conversion appeared to fail silently, and the usual tools for diagnosing…

Check out this article via web browser: How to create a Microsoft 365 device-bound passkey on macOS I did a discovery today, and I want to share it, because I did not know this was an option. Up…

Financial systems don't get the luxury of downtime. Exchanges, brokers, and trading engines must ship new releases while orders are flowing, positions are changing, and markets are moving, without…

Just a small update here. I recently added Unbound to my router, instead of relying on Cloudflare, Google, or other public DNS server. The install went pretty smoothly, but I still wanted to share a…

Cyberia Collective - Blog 12 Cyberia Collective <-Back Blog Post 12: Sven Coop Server Date: August 21st, 2026 @ 2053 UTC-4:00 Author: lule34567 Over this past month, I have decided to work on…

In post-quantum cryptography, hybrid key agreement schemes such as X25519MLKEM768 mitigate the risk that either the classical or the post-quantum scheme is compromised. In contrast, Sophie Schmieg…

Notes about my second app for self-hosting my own personal music server.

I released a security fix for OCaml's cohttp 6.3.0 today, fixing a path traversal issue . The patch itself was straightforward and in normal times, the security procedure would have been to fix it…

Until now, every agent I ran through Replaybook was blind. It could read the incident report. It could SSH into a broken NixOS machine, inspect services, edit configuration, and restart things. Once…

In March 2026, Anthropic silently reduced Claude's prompt cache TTL from one hour to five minutes — no blog post, no deprecation notice, no API version bump. For production workloads designed around…

The first time I installed NetBSD I used sysinst(8), a menu-based program launched at boot that runs in the console. It has a clear and concise layout and I was quickly up-and-running on my new BSD…

Remember when we wrote about the surveillance cameras tracking pretty much every car? Remember when we wrote about the anti-surveillance fashion that makes ugly sweaters diverting cameras? Now…

Keep the home router. Put WireGuard on a dedicated OpenWrt box. How we commissioned ours, and a paste from first boot to a working client.

As written last month in My homeserver is dying in slow motion it just crashed again a day after. Of course while I was in Paris for the EWC so no chance to fix it. In an impulse I decided against…

Most vulnerability management programs fail from the same handful of design mistakes — CVSS-only prioritization, security owning the fix queue, unilateral SLAs, and no feedback loop with engineering.…

When I'm traveling and I need to remote into personal or build machine I would have to do some wacky port-forwarding over SSH to expose a host port to my local port. With Tailscale this is much…

SPIFFE, WIMSE and OAuth solve agent authentication. The three major clouds already ship most of it. None of them decides what an agent may do once it holds a valid credential, and the standards say…

ImmiBridge pulled 51,000 photos and videos out of iCloud and into my self hosted Immich server over a single weekend. Here's how the setup and the sync actually went.

The week's biggest cybersecurity stories, filtered for defender impact, patch urgency, active exploitation, and what IT teams should actually do next.

Step-by-step HackTheBox Jeeves Walkthrouhg. Learn how to exploit Jenkins Script Console, crack Keepass files with hashcat, and gain root access.

In which Steven goes over how to setup a custom email address

Dangerous, automated security tools existed before LLMs, and AI agents don't change cybersecurity fundamentals.

While freeing space on my Surface Laptop Studio 2, I accidentally used Shift+Delete to permanently remove the C:\tests directory, which unexpectedly contained photographs from a trip to Switzerland.…

One of our Macs kept filling up its SSD even though there isn’t supposed to be anything more stored on it. Photos is set to optimize its storage, and Messages is set to only keep messages for a…

Right now, I am visiting Amsterdam. While Amsterdam is a nice city and I like my hotel, one of the worst parts is the hotel’s Wi-Fi. The Wi-Fi is heavily firewalled. Meaning only mainstream TCP…

Increasing hatred of datacenters within the US has made the headlines this week, and this seems to finally be catching a tiny bit of notice in Silicon Valley (SV). It’s a hot-button issue that has,…

Power transmission plays a defining role in the energy security of a region but because the industry is more operationally intensive it rarely makes headlines, often working silently in the…

When I get on a roll, I sometimes find it hard to stop, especially when things are working. And so it was, I made a tiny ESP32-based BLE Proxy for my Home Assistant setup with a tiny display to show…

We’re getting ready to launch a self-hosted LLM, and at the testing stage the general idea is to send client requests simultaneously both to the “default production model” like…

Discover how moving beyond commercial smart speakers to Home Assistant enables local control, privacy, and endless DIY home automation possibilities.

GitHub’s CTO Vlad Fedorov has posted apologetically about the 17th August outage which, he said, “lasted 7 hours and 47 minutes. It disrupted github.com, authentication, GitHub Actions,…

Over time after many online memory changes, the memory may become fragmented like this example. The small blocks prevent the system from allocating large pages which causes degraded performance. The…

I built an LLM API gateway. Between that and all the infrastructure modernisation I’ve been doing at work, the months have blurred. I’ve been really busy, and there was never a good…

You do not need a GitHub App or bot merge to run a serious agent landing path. Human mode: Intent, CI, SHA-keyed review receipts, and a wrapper that refuses bare merges.

Collecting defendant’s DNA from his trash out for collection didn’t violate the Fourth Amendment or the Colorado Constitution. People v. Anderson, 2026 COA 64 (Aug. 20, 2026) (2-1 on the state issue;…

Based on this totally scientific, absolutely guaranteed to be accurate poll that I ran on Linkedin for the past week or so, DMARC is almost universally loved. A couple of people got a bit snarky in…

Last night the Mail app on my Mac woke me. The subject line was always the same: “New message from Test”. Again. And again. Eighty-four times. This is the postmortem. All times are CEST.…

GitHub Status - Incident with GitHub.com Incident report on this week's very long GitHub outage. tl;dr: service meshes still suck. The immediate cause of the failure was network saturation on load…

Increasingly customers are using 1MB and 2GB page frames. Recent experiences with them managing these areas have led me to writing this post. It’s about the two LFAREAs. 1 In the following…

The other day my friend Chris pinged me on a Twitter thread. Todd Dailey was making the case that digital signage is a huge industry selling bad products with high subscription fees, and that with a…