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A quick dive into how secrets are managed and stored in Kubernetes, MicroK8s in particular, noting some of the related security concerns. Table of contents Installing MicroK8s macOS Ubuntu RHEL/CentOS Working with Kubernetes secrets MicroK8s s...
A comprehensive guide to installing, configuring, and maintaining Linux systems in the modern data center. Available from Packt Publishing! In a new book from Packt Publishing, which I co-wrote with Alex Calcatinge, we take a fresh look at Linux adm...
Looking to deploy your Docker containers with Amazon Elastic Container Service (ECS)? Here's a brief guide to get you going. This article uses the AWS and ECS CLI tooling in the process. Amazon ECS is a highly scalable, high-performance container or...
Allow or deny SSH? You may want to provide secure and limited SSH access to your public hosts, using SSH keys. Here's a simple way to do it. Care for better security with SSH? If you do, perhaps you don't want to allow root SSH access to your public...
Secure FTP communication with your Linux host. These instructions apply to Ubuntu 18.04 and can easily be adapted for a vast majority of Linux platforms. Install FTP Server Run the following commands to install FTP (vsftpd): sudo apt-get update sudo...
If you use multiple versions of Java in your development environment, perhaps you wished there was a better way to switch from one to the other, instead of remembering to set the JAVA_HOME environment variable. Forgot to set the JAVA_HOME environmen...