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Tripwire is a free and open-source Linux Intrusion Detection System. It is used to detect and report any unauthorized change in files and directories on Linux. In this post, we will show you how to install and configure Tripwire on Debian 10.

Apache Cassandra is an open source NoSQL database trusted by thousands of companies around the globe for its scalability and high availability that does not compromise performance. Contributing to such a widely used distributed system may seem daunting, so this article aims to provide you an easy entry point. There are good reasons to contribute to Cassandra, such as: read more

This is the eighth in a series of articles about features that first appeared in a version of Python 3.x. Python 3.7 was first released in 2018, and even though it has been out for a few years, many of the features it introduced are underused and pretty cool. Here are three of them. Postponed evaluation of annotations In Python 3.7, as long as the right __future__ flags are activated, annotations are not evaluated during runtime: read more

Configure a .NET development environment on Fedora Linux (including Azure Functions tools and SSL) for C# and related languages.

ModSecurity is a free, open-source, and most popular web application firewall (WAF) that protects your web application against a wide range of Layer 7 attacks. In this tutorial, I will show you how to install ModSecurity 3 with Apache inside a Docker container.

The biggest challenge? "Backwards compatibility of features that we might not even know we have". Interview Python creator Guido van Rossum last week introduced a project to make CPython, the official implementation, five times faster in four years. Now Mark Shannon – one of the three initial members of the project – has opened up about the why and the how.…

In this article, I will show you aws-cli commands to manage Cloudwatch from the terminal. This guide will help you get started with using aws-cli for creating, managing Cloudwatch alarms.

WebAssembly, the stack-based virtual machine, is expanding well beyond websites to become a useful Rust and JavaScript programming tool for many programs.

Google Pixel phone not required. Google has flicked "publish" on its Android 12 beta, with the bleeding-edge OS winging its way to enrolled devices.…

With our world being increasingly driven by apps and the microservices that support them, adoption of WebAssembly (Wasm) continues to accelerate. WebAssembly is a stack-based virtual machine that can greatly improve the performance and capabilities of websites and, despite the name, nearly any other kind of non-web platform you can imagine. Besides making browsers much […]

Whether you are welcoming CentOS Stream or looking for alternatives, the recent decision from the CentOS community to focus on CentOS Stream has forced a lot of technical leaders to rethink their Enterprise Linux strategy.  Today, Linux comes in every shape and size imaginable — with the kernel running on tiny low power computers and IoT devices, mobile phones, tablets, laptops all the way up to midrange and high-power mainframe servers.

1Password has just released the first big-name password management program for Linux desktop users.

EyeCloudAI will soon go to Crowd Supply to launch an open-spec, Pi-compatible “CDK” edge AI camera kit based on Intel’s Myriad X VPU with 1GB RAM and a choice of 2MP rolling or global shutter or 8MP rolling shutter sensors. EyeCloudAI, which successfully launched a series of OpenNCC embedded vision AI cameras on Kickstarter last […]

Last year, I wrote about using Cockpit to manage my Linux servers. It is a web-based tool that gives you a clean, powerful interface for managing multiple servers and their associated services and applications. It also eases regular day-to-day administrative tasks.

This is the seventh in a series of articles about features that first appeared in a version of Python 3.x. Python 3.6 was first released in 2016, and even though it has been out for a while, many of the features it introduced are underused and pretty cool. Here are three of them.

If you are building an application that uses some variation of a client/server model, you need an application programming interface (API). An API is a clearly defined boundary between one process and another. A common boundary in web applications is a REST/JSON API.

This is the fourth post in a series about network address translation (NAT). The first article introduced how to use the iptables/nftables packet tracing feature to find the source of NAT-related connectivity problems. The second article introduced the “conntrack” command. The third article gave an introduction to the “conntrack” event framework. This article shows how […]

Office 365 users learn that Microsoft can make or break their productivity every 4 hours. Microsoft has published a Preliminary Post Incident Report on last week's events which broke Outlook on Windows for millions of users, making emails impossible to view or create.…

Firefly has launched a “ROC-RK3566-PC” SBC with a Rockchip RK3566 and 2GB ($89) or 4GB ($119) RAM plus 32GB eMMC, GbE, WiFi/BT, MIPI, HDMI, M.2, and 3x USB. Specs have also been posted for a RK3568-based model. T-Chip Technology’s Firefly community project is continuing its transition to Rockchip’s quad-core, Cortex-A55 based RK3566 and RK3568 by […]

Getting from one place to another over a computer network can be a tricky thing. Aside from knowing the right address and opening the right ports, there's the question of security. For Linux, SSH is a popular default, and while there's a lot you can do with SSH it's still "just" a secure shell (that's what SSH stands for, in fact.) A broader protocol for encrypted traffic is VPN, which creates a unique, virtual private network between two points. read more