Bringing Browser-Based MFA SSO to the OpenStack CLI
Learn how a lightweight keystoneauth1 plugin brings your existing browser-based MFA and SSO to the OpenStack CLI, with no changes to any client tools.
Tutorials
Step-by-step guides to help you get the most out of your cloud infrastructure. Learn how to deploy, configure, and optimize your applications.
GeneralHow To Customize your Ghost Instance.
Ghost is an Open Source application created and dedicated to blogging. It allows us to write and publish our own blog, giving you the tools to make it
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LinuxHow to Add Swap on Ubuntu.
Swap space in Linux is used when the amount of physical memory (RAM) is full. If the system needs more memory resources and the RAM is full, inactive
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DockerHow To Run Nginx in a Docker Container on Ubuntu 16.04.
Whether you use the open source NGINX image from the Docker Hub repository or create your own NGINX image, you can spin up new instances in containers.
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LinuxHow To Install an Upstream Version of Node.js on Ubuntu.
Node.js is a software platform that is used to build fast and easily scalable applications. Node.js utilizes JavaScript as its scripting language and
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LinuxHow to Use Prometheus to Monitor Your CentOS 7 Server.
Prometheus is an open source monitoring system and time series database. It addresses many aspects of monitoring such as the generation and collection of
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LinuxHow To Setup Your Own VPN With PPTP on Linux (CentOS, Ubuntu, Debian).
A virtual private network (VPN) is network that extends a private network (i.e. LAN) across a public network, such as the Internet. It enables a
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LinuxHow To Deploy a Clojure Web Application on Ubuntu 14.04.
Clojure is a modern, functional programming for the JVM and a dialect of the Lisp (LISt Processing) that focuses on concurrent programming found in
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GeneralHow To Securely Set Up Shipyard 2.0.10 with TLS on CoreOS.
Shipyard allows you to see which containers each of your servers are running, in order to start or stop existing containers or create new ones.
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WordPressWordPress Performance Tip: Controlling Cronjobs.
So, your blog is growing fast or you are worried that your visitors will start increasing quickly but your WordPress based website or blog is slowly
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LinuxHow to: Setup Cassandra & Run a Single-Node Cluster on Ubuntu 16.04.
Apache Cassandra is an open source distributed database management system designed to handle large amounts of data across many commodity servers,
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LinuxHow To Install & Setup Puppet Master and Client on Ubuntu 14.04.
Puppet is a system that is used for automating system administration tasks. Almost all system administrators try to get rid of their daily repetitive and
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LinuxHow to protect your SSH server with Fail2Ban on Ubuntu.
Every server that exists online, virtual or dedicated, has some purpose related to its existence. It could be used as mail server, file server, web server
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Blog
The Latest From Us
Insights, updates, and stories from our team
The Real Cost of Running AI on Hyperscalers vs. Open Infrastructure
Hyperscaler AI looks fast but hides long-term lock-in and rising costs. See how OpenStack and Kubernetes deliver GPU infrastructure you actually control.
Why GPUs Sit Idle: The Hidden Efficiency Problem in AI Infrastructure
Many AI clusters run at only 30–50% GPU utilization. Learn why GPUs sit idle and how Kubernetes, scheduling, and better infrastructure design can improve AI infrastructure efficiency.