…and switch from Ubuntu’s apt cephadm (v19) to a manually downloaded cephadm (v20) This post documents a practical, works-in-real-life upgrade […]
This guide installs EJBCA Community Edition (example: r9.3.7) on Ubuntu 24.04, using WildFly as the application server and MariaDB as
Short outage method: Stop → Backup → Upgrade → Start Example upgrade: 26.4.6 → 26.5.2 This post upgrades a Keycloak
This is a follow-up to my Teleport installation guide: That post builds a single-node Teleport cluster (Auth + Proxy +
This guide installs a single-node Teleport cluster (Auth + Proxy + SSH service on one host) on Ubuntu 24.04, secured
This post shows how to move a single-node Vault OSS deployment from one EC2 instance to another existing EC2 host
This is the reverse of my previous migration (VMware Workstation → KVM). The safe, repeatable flow is: Shutdown the VM
This post shows how to upgrade a 3-node kubeadm cluster from Kubernetes v1.34.x → v1.35.0 on Ubuntu Server 24.04, where:
This post shows a complete, reproducible flow: Lab context Important: The following CloudShell script is for this post’s use case
Prerequisites Before you start, your Ubuntu 24.04 host should already have: If you haven’t set these up yet, follow this
