Short-lived and IP address certificates are now generally available from Let’s Encrypt. These certificates are valid for 160 hours, just over six days. In order to get a short-lived certificate subscribers simply need to select the ‘shortlived’ certificate profile in their ACME client. Short-lived certificates improve security by requiring more frequent validation and reducing reliance on unreliable revocation mechanisms. If a certificate’s private key is exposed or compromised, revocation has historically been the way to mitigate damage prior to the certificate’s expiration. Unfortunately, revocation is an unreliable system so many relying parties continue to be vulnerable until the certificate expires, a period as long as 90 days. With short-lived certificates that vulnerability window is greatly reduced.

One of the simplest, most over-studied organisms in the world is the C. elegans nematode. For 13 years, a project called OpenWorm has tried—and utterly failed—to simulate it.

Columnist Mike Elgan offers tips on how to post to Twitter and Facebook, send a newsletter and more all from a Google+ account.

We started developing our vulnerability management platform (VMP) at Spotify in Q2, 2020, and now that we’ve implemented it and use the system in our day-to-day work, we wanted to take a moment to share our journey to help reduce security risks in an efficient and scalable manner.

My writings about Ghostty, the terminal emulator I work on.

The premier source of truth powering network automation. Open source under Apache 2. Try NetBox Cloud free: https://netboxlabs.com/products/free-netbox-cloud/ - netbox-community/netbox

When you request a certificate from Let’s Encrypt, our servers validate that you control the hostnames in that certificate using ACME challenges. For subscribers who need wildcard certificates or who prefer not to expose infrastructure to the public Internet, the DNS-01 challenge type has long been the only choice. DNS-01 works well. It is widely supported and battle-tested, but it comes with operational costs: DNS propagation delays, recurring DNS updates at renewal time, and automation that often requires distributing DNS credentials throughout your infrastructure.

Pocket Flow: Codebase to Tutorial. Contribute to The-Pocket/PocketFlow-Tutorial-Codebase-Knowledge development by creating an account on GitHub.

The history of observability tools over the past decade has been about a pretty simple concept, but LLMs bring the death of that paradigm.

Skills for threat modeling, scanning, triage, patching, plus an autonomous scanning harness you can /customize - anthropics/defending-code-reference-harness

From the album Reggie Watts Sings Your Favorite Christmas Classics, Vol. 2, released by Brainfeeder on December 18, 2025

Introducing the new Obsidian Community site and developer dashboard.

GPT-5.3-Codex is a Codex-native agent that pairs frontier coding performance with general reasoning to support long-horizon, real-world technical work.

SMBC is a daily comic strip about life, philosophy, science, mathematics, and dirty jokes.

We’re introducing cf, a new unified CLI designed for consistency across the Cloudflare platform, alongside Local Explorer for debugging local data. These tools simplify how developers and AI agents interact with our nearly 3,000 API operations.

Engine: straight-4 Turbo & Supercharged / 1759 cc / 107.3 cu inPower: 450-500 hp / 335-372,5 kwTorque 490 Nm / 361 ft lbs @ 5,000 rpmWeight: 890 kg / 1962 lb...

Wireshark for Docker containers. Contribute to subtrace/subtrace development by creating an account on GitHub.

Local Deep Research achieves ~95% on SimpleQA benchmark (tested with GPT-4.1-mini). Supports local and cloud LLMs (Ollama, Google, Anthropic, ...). Searches 10+ sources - arXiv, PubMed, web, and your private documents. Everything Local & Encrypted. - LearningCircuit/local-deep-research

Maul: Shadow Lord introduces a canon version of Darth Talon, realizing George Lucas' original Episode VII plan after Kathleen Kennedy's exit from Lucasfilm.