On July 14, 2025, something strange happened on the Internet. Cloudflare’s ultra-popular DNS service — 1.1.1.1 — suddenly stopped working. For over an hour, people across the globe couldn’t resolve domain names. To many users, it felt like the entire Internet had gone dark.…
Redis, the company behind the blazing-fast key-value database that powers everything from caching to AI workloads, is stepping back into the open source world — sort of. Starting with Redis 8, the company is adding the GNU Affero General Public…
Apache Kafka 4.0 is here, and it’s packed with upgrades that touch almost every part of the platform! From Kafka Streams to Kafka Connect, and from brokers to producers and consumers, this release is bigger than ever. With a slew…
When I first started working with Kubernetes, it felt like trying to decode a secret language. I remember the days of grappling with the basics, especially when it came to understanding pods. I’d set up my application, only to get tangled in…
In the world of Silicon Valley, where startups often rise and fall at a dizzying pace, one company has quietly transformed from a humble research project into a $62 billion tech giant. That company is Databricks, and its CEO, Ali…
NetworkManager Tools NetworkManager is a system service in Linux distributions that manages network devices and connections. Here are some tools you can use to control NetworkManager and refresh the network interface configuration: Using Ansible For automated and remote configuration, you…
This article provides a comprehensive guide on renaming network interfaces in Red Hat Enterprise Linux (RHEL), focusing on the differences between the traditional ifcfg format and the newer keyfile format for NetworkManager connection profiles. Understanding RHEL’s Network Interface Naming Traditionally,…
Introduction to NetworkManager in Linux NetworkManager is a system service that manages network devices and connections on Red Hat Enterprise Linux (RHEL). It automatically creates connection profiles for each Ethernet adapter in a host and, by default, uses DHCP for…
Introduction to the vi Command vi (short for “visual editor”) is a screen-oriented text editor that is ubiquitous in Linux and Unix-like operating systems. It’s known for its power, efficiency, and modal editing approach, which can initially seem cryptic to…
Introduction to the nmcli Command The nmcli command is a powerful command-line tool in Red Hat Enterprise Linux (RHEL) used to manage network connections through the NetworkManager service. It provides a comprehensive interface for configuring, monitoring, and troubleshooting various network…
