March 24, 2025: We’ve updated this post to remove an example that referenced an old CA. November 18, 2024: This post was updated to reflect the latest certificate authority information for Amazon issued public certificates. July 11, 2019: The service team has resolved an error that caused customers to see a “Certificate Transparency Required” […]

A new command injection vulnerability in OpenSSH, tracked as CVE-2025-61984, has been disclosed, which could allow an attacker to achieve remote code execution on a victim's machine.

Note from June 5, 2019: The approach and architecture in this post is recommended if you prefer more control over DNS servers or prefer to use AWS Managed Active Directory for DNS resolution, however there are some limitations to this approach and we added a “Limitations and additional considerations” section to this post to describe […]

Free and Open-source database diagrams editor, visualize and design your database with a single query. Tool to help you draw your DB relationship diagrams and export DDL scripts.

The proliferation of new top-level domains (TLDs) has exacerbated a well-known security weakness: Many organizations set up their internal Microsoft authentication systems years ago using domain names in TLDs that didn't exist at the time. Meaning, they are continuously sending…

Multi-Cloud Security Auditing Tool. Contribute to nccgroup/ScoutSuite development by creating an account on GitHub.

Manage your dotfiles across multiple machines, securely.

Read how Google is using System Theoretic Process Analysis (STPA) to analyze pure software systems and discover risks.

Real people versus avatars: a look at the impact of digital personas on social interactions.

Barış Özmen Blog

Level up your Obsidian game with Dataview

Editor-agnostic, real-time collaborative editing of local text files. - ethersync/ethersync

There are plenty of incredible open source Android games available for your smartphone, but to get your started, here are my favorites.

Getting Started with networkQuality

The networkQuality tool is a built-in tool released in macOS Monterey that can help diagnose network issues and measure network performance. In this post, we'll go over how to use the networkQuality tool and some of its key features.

Running the Default Tests

To access the

In my last post I talked about how I spent a week heads down using AI to work on a greenfield engineering metrics tool. As I built it, I’d often navigate the web app and spot things that needed to be fleshed out. Sometimes it was a small typo; other times it was a bigger […]

Computers are starting to have opinions on how our APIs should look like

Most time-lapse videos work by capturing an object from one vantage point as the world changes around it. This remarkable time-lapse of the traffic in Ho Chi Minh City by photographer Rob Whitworth moves along with the Vietnamese city. And that — along with a roundabout that seems to beat like the heart of the city — is what helps to make this the most amazing time-lapse video you'll see today.