Red Hat Enterprise Linux

This post shows how to install the latest versions of Node.js on RHEL 8 and RHEL 9

Red Hat Software Collections 3.2 beta adds: Node.js 10, PHP 7.2, Varnish Cache 6.0, MySQL 8.0, NGINX 1.14, Git 2.18 to Red Hat Enterprise Linux 7

Get an introduction to Linux virtual interfaces, including commonly used interfaces, when to use them, and how to create them.

Red Hat Container Development Kit (CDK) 3.6 is now available to run an OpenShift/Kubernetes cluster on your laptop for developing cloud- and container-based applications.

Microsoft's decision to make .NET Core open source and cross-platform means it's

This article explores some of the dynamic IP address management issues in Open Virtual Network (OVN), how those have been improved, and what's in store for OVN in future versions of Open vSwitch.

Red Hat OpenShift supports two workflows for building container images for applications: the source workflow and the binary workflow. This article compares the two workflows, describes how to use each of them, and explains which workflow to use depending on your circumstances.

This article shows how set up Microsoft SQL Server on Red Hat OpenShift and then use SQL Server to store data for a simple ASP.NET Core application running in a container deployed on OpenShift that manages a list of contacts. It also shows how to manage SQL Server within OpenShift using SQL Operation Studio.

This blog explains the effects of configuring too small a forwarding database (FDB) table for Open vSwitch, how to identify which bridge is suffering from too small an FDB table, and how to configure the FDB table size appropriately. If the FDB table is too small, a lot of ping/ponging in the table can happen, which uses CPU resources.

This article demonstrates the IP address management (IPAM) options in Open Virtual Network (OVN) and how to apply them. Using OVN, you can set up dynamic IP addresses on your logical switches without the need to keep track of assigned addresses in your application.

Podman is an alternative to the Docker command-line interface that lets you run standalone, daemonless containers. See examples of how easy it is to use Podman.

For developers, sudo access can be useful for automating steps in build scripts. Learn how to configure sudo access and enable sudo during system installation.

Everything you need to install Python and related utilities on Red Hat Enterprise Linux 7, 8, and 9. Includes Python tips and FAQs.

Kestrel, the web server in the .NET Core, supports replacing the network layer. This article benchmarks Kestrel’s networking layer with a Linux-specific implementation to achieve measurable performance gains compared to the out-the-box implementation.

New releases: Red Hat Developer Studio 12 and Container Development Kit 3.5. Learn about the new features and updates to other developer tools for Windows, macOS, and Red Hat Enterprise Linux.

Clang tools and newer versions of GCC can be quite helpful for better warnings and error messages during C/C++ development. This article shows how you can easily install the latest supported Clang 5 and GCC 7 compilers using yum on Red Hat Enterprise Linux. It also provides tips for working with software collections.

Containers are the new way of deploying applications. They are an efficient way to portably deploy applications across clouds and different OSes.This article looks at what OpenShift brings for .NET Core specifically and how OpenShift provides a DevOps platform on top of Kubernetes for building and deploying apps.

The most common problem when people are deploying an Open vSwitch with Data Plane Development Kit (OvS-DPDK) solution is that performance is not as expected. Here's how to configure thread affinity, verify that it’s set up correctly, and ensure no other threads are using the CPU cores.

How to debug and avoid out-of-memory issues with Open vSwitch with the Data Plane Development Kit (OvS-DPDK). It explains the situations in which you can run out of memory and shows the relevant log entries, and it also provides tips for further debugging.

If you need to build some Python-based microservices, one way to do it is to install Python in a Red Hat Enterprise Linux virtual machine and use Flask, a microframework that makes building RESTful services easy.

Red Hat Container Development Kit (CDK) provides a single-node Red Hat OpenShift cluster that can assist with containerized application development. This environment is like a production OpenShift environment that works on a single user's computer. Follow these steps to install CDK 3.4 on Fedora 28.

The new var keyword in Java 10 can reduce boilerplate variable type definitions and increase code readability. Learn when it can and cannot be used.

Learn how to create an Ansible Playbook Bundle (APB) and customize it to configure an external remote host (through SSH), explore what goes on "under the hood," and get tips for troubleshooting APBs.