Linux

What’s new in vSphere on RHEL image builder

Vivien Wang

September 26, 2023

Discover what’s new in VMware vSphere on RHEL image builder, including convenient auto-registration features accessing the latest RHEL bug and security fixes.

This first article in our series describes the benefits of SELinux and how it enhances the security of applications running on the system.

Learn how to simulate realistic workloads across a software-defined network using DPDK's testpmd utility and new functionality in the noisy_vnf module.

This article describes the new statistics added for the user space datapath in Open vSwitch 2.17 and later.

This article will demonstrate how to configure RHEL as a workstation during the installation process.

How to trigger jobs manually in Packit

Jakub Stejskal + 1

September 8, 2023

Explore new features in Packit, an open source project that simplifies integration with Fedora Linux, CentOS Stream, and other distributions.

This article describes the current state, recent improvements, and our plans for making truly statically linked applications.

This article demonstrates how to install Ansible lint and provides examples of how it improves playbook debugging and saves time.

How to use Ansible Automation Platform from GCP Marketplace

Deepankar Jain + 1

August 21, 2023

Learn how to use the Ansible Automation Platform from Google Cloud Platform (GCP) Marketplace to automatically provision GCP resources.

How to use Ansible Automation Platform from Azure Marketplace

Deepankar Jain + 1

August 14, 2023

Learn how to use the Ansible Automation Platform from Microsoft Azure Marketplace to automatically provision Azure resources.

Uncover interesting test cases with AI/ML and Bunsen

Frank Eigler

August 2, 2023

Discover the power of AI/ML in software testing with Bunsen, a Python-based toolkit that lets you analyze and report test-suite logs using an SQLite database.

Frame pointers: Untangling the unwinding

Guinevere Larsen

July 31, 2023

Explore how frame pointers can be used to unwind Linux kernel stack traces and examine different ways to obtain a backtrace, along with their pros and cons.

The realloc function in C is useful for memory management, but there are a few tricky cases to watch out for. See how Valgrind Memcheck helps find these issues.

Explore how to troubleshoot your Open vSwitch deployments with the kernel_delay.py tool, which helps you debug faster by pinpointing issues at the source.

Discover new features in Delve, the Go debugger, and learn how to use function call injections when debugging Go programs.

This article demonstrates how to use Ansible Automation Platform to deploy applications in a containerized environment.

How to balance per-CPU upcall dispatch mode in Open vSwitch

Michael Santana

July 20, 2023

This article explains two ways I fixed issues in the per-CPU upcall dispatch mode in Open vSwitch, creating a more balanced workload for upcall handler threads.

This article discusses reasons why packets drop in the Linux kernel and how to retrieve them.

Get an introduction to ISystemTap, a Jupyter kernel for Linux operating systems that helps you write and run SystemTap scripts.

Learn how to use the Convert2RHEL command-line utility to easily migrate from CentOS Linux 7 to a fully supported Red Hat Enterprise Linux operating system.

Get an overview of what's new in GCC 13, the latest GNU Compiler Collection release, including bug fixes and new features in the C++ front end.