You've just installed Ubuntu. You set http_proxy in your terminal, curl google.com works, but sudo apt update fails. Welcome to Linux proxy configuration. Ubuntu (and ...

The first ThreatsDay Bulletin of 2026 lands on a day that already feels symbolic — new year, new breaches, new tricks. If the past twelve months taught defenders anything, it’s that threat actors ...

Are you using Burp inside a network that uses a Proxy Auto-Config (PAC) script to dynamically determine which upstream proxies to use for some given host or hosts? Are you lazy and just want an ...

The Jakarta Persistence API (JPA) is a specification that defines a standardized framework for data persistence. Persistence is the fundamental mechanism for saving and retrieving data over time. In ...

This is the official home of the Java Apereo CAS client. The client consists of a collection of Servlet filters that are suitable for most Java-based web applications. It also serves as an API ...

There are many ways to describe a database: the role it plays in a distributed architecture, the various internal components that make it work, and the various levels that define specific roles and ...

Maximizing code reuse in your Java programs means writing code that is easy to read, understand, and maintain. Here are eight ways to get started. Writing reusable code is a vital skill for every ...

This is a continuation of a series of articles in which I briefly cover the main points of a specific topic in system architecture design. The first article can be read here and the full guide you can ...

Navigating the many articles, courses, and videos on systems design can take time and effort. This is the first article in a series where I will briefly cover the main points of a particular topic of ...