Kiril, creator of devopsness.com, an IT professional, DevOps cloud and tech enthusiast.
Continuous Integration (CI) and Continuous Delivery/Deployment (CD) are essential practices in modern software development, enabling teams to ship features quickly and reliably. A well-implemented CI/CD pipeline automates testing, building, and deployment, helping developers to continuously integrate new code and deliver it to production with minimal manual intervention. However,...
The Linux kernel is one of the most important components of the Linux operating system, acting as the core that manages hardware resources and provides essential services to user applications. In simple terms, it bridges the gap between hardware and software, ensuring efficient communication between the two. But what exactly...
Cgroups (control groups) are a Linux kernel feature that allows you to control and limit the resources (CPU, memory, I/O) that processes can use. This becomes crucial for system stability, especially when working with resource-hungry applications, containers, or virtual machines. How Cgroups Work Cgroups create hierarchical groups where processes...
In the world of software development, version control is essential for managing and tracking changes in code. One of the most widely used version control systems is Git, an open-source tool created by Linus Torvalds in 2005. Git allows multiple developers to collaborate on projects, track changes, and revert to...
On Unix and Linux systems, the superuser account—commonly referred to as root, admin, or supervisor—holds the highest level of authority, allowing for unrestricted system-wide changes. This account is primarily used for critical administrative tasks, such as modifying file ownership or managing network ports. However, there are times when...
To list open ports in Linux, you can use several commands depending on your needs. Here are some of the most common methods: 1. Using netstat netstat is a versatile tool for monitoring network connections. bashCopy codesudo netstat -tuln * -t: Show TCP ports. * -u: Show UDP ports. * -l: Show listening...
