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Tux Machines


today's howtos


Posted by Roy Schestowitz on May 23, 2023


Dear Ubuntu...

Android Leftovers



Setting Up a Port Forwarding Using Uncomplicated Firewall (UFW)


↺ Setting Up a Port Forwarding Using Uncomplicated Firewall (UFW)


> Uncomplicated Firewall (UFW) is a popular and user-friendly command-line interface designed to facilitate firewall management on Ubuntu and other Linux systems. While UFW is typically used to manage inbound and outbound traffic at the port level, it also supports more complex tasks like setting up port forwarding, also known as port mapping.



Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04


↺ Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04


> This step-by-step guide provides an easy way to install Kubernetes dashboard on Ubuntu 22.04/20.04. Installing Kubernetes Dashboard on Ubuntu 22.04/20.04 is a simple process that allows you to manage and monitor your Kubernetes clusters efficiently.



Dynamic Tracing on OpenBSD 7.3


↺ Dynamic Tracing on OpenBSD 7.3


> A couple years ago a new device silently entered the OpenBSD source tree. The dt(4) device first appearing in OpenBSD 6.7 with very sparse information. In the releases since, it's gained quite a bit of functionality and now has tools to manipulate it properly. The documentation has gotten better over the last couple years, but there isn't much info about how to leverage it to do anything useful.



How To Install Percona on Ubuntu 22.04 LTS


↺ How To Install Percona on Ubuntu 22.04 LTS


> In this tutorial, we will show you how to install Percona on Ubuntu 22.04 LTS. Percona Server is a powerful and reliable open-source database management system that provides high performance, scalability, and security for enterprise-level applications.



Container Security – How to Quickly Install NeuVector 5 on OpenShift 4


↺ Container Security – How to Quickly Install NeuVector 5 on OpenShift 4


> NeuVector is a container security platform that provides comprehensive security for containerized applications allowing you to not only prevent attacks but also to actively protect your applications from unknown vulnerabilities by implementing behavioral-based Zero-Trust security policies.



Smooth Transitions: Rolling Updates and Autoscaling in Kubernetes


↺ Smooth Transitions: Rolling Updates and Autoscaling in Kubernetes


> In today's rapidly evolving software development industry, Kubernetes has emerged as a leading platform for container orchestration. Kubernetes is an open-source system that automates the deployment, scaling, and management of containerized applications. It allows developers to easily manage and deploy their applications across multiple servers in a consistent and reliable manner.



Resource Management: Implementing Limits and Quotas in Kubernetes


↺ Resource Management: Implementing Limits and Quotas in Kubernetes


> The rapid growth of cloud-native applications has revolutionized the way organizations develop and deploy software. Kubernetes, an open-source container orchestration platform, has emerged as a popular choice for managing these applications due to its scalability and flexibility. However, managing resources in Kubernetes can be challenging without proper resource management.



Expand Your Horizons: Using Out-of-Tree Volume Plugins with FlexVolume


↺ Expand Your Horizons: Using Out-of-Tree Volume Plugins with FlexVolume


> As the adoption of containerized environments continues to grow, there is an increasing need for flexible and scalable storage solutions. Kubernetes, a popular container orchestration platform, has come up with a solution to this problem through its FlexVolume driver.



Efficient Scaling: Mastering Horizontal Pod Autoscaling in Kubernetes


↺ Efficient Scaling: Mastering Horizontal Pod Autoscaling in Kubernetes


> As software development becomes more complex and modern applications require greater scalability, container orchestration platforms like Kubernetes have become increasingly popular among developers. Kubernetes provides a powerful platform for automating the deployment, scaling, and management of containerized applications.



Unlocking Storage Potential: Understanding the Container Storage Interface


↺ Unlocking Storage Potential: Understanding the Container Storage Interface


> Why Storage is Critical to Modern Computing In today's digital age, data storage is a critical component of modern computing. From personal computer files to large-scale enterprise data centers, storing, accessing, and managing data is essential to business operations.



Step-by-Step Guide: How to Install Metrics Server on Kubernetes


↺ Step-by-Step Guide: How to Install Metrics Server on Kubernetes


> This tutorial provides a step-by-step guide on how to install Metrics server on Kubernetes. Kubernetes Metrics Server plays a vital role in monitoring your Kubernetes cluster by collecting resource utilization data, such as CPU and memory usage, from various components.



What I see as good options today for encrypted NFS


↺ What I see as good options today for encrypted NFS


> The first option is to use IPsec for at least the NFS traffic between NFS servers and NFS clients. IPsec has the advantage that IPsec security policies will generally let you encrypt all NFS traffic and only the NFS traffic, so you don't have to spend CPU cycles encrypting other traffic (if any). You'd most likely want to set up an IKE environment to establish IPsec keys between relevant machines and to authenticate them.



A Well Known URL For Your Personal Avatar


↺ A Well Known URL For Your Personal Avatar


> The idea is: anybody that owns a domain can put their avatar in a well-known location.



Dynamic Tracing on OpenBSD 7.3


↺ Dynamic Tracing on OpenBSD 7.3


> A couple years ago a new device silently entered the OpenBSD source tree.


> The dt(4) device first appearing in OpenBSD 6.7 with very sparse information. In the releases since, it's gained quite a bit of functionality and now has tools to manipulate it properly.




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