Ubuntu Archives - Page 2 of 9

Add an Ubuntu 24.04 Linux Server Data Source to OpenObserve

Makson Lee / March 5, 2026

This post adds a Linux server (Ubuntu 24.04) as a data source to my existing OpenObserve standalone (local mode) deployment. […]

Makson Lee / February 24, 2026

…and switch from Ubuntu’s apt cephadm (v19) to a manually downloaded cephadm (v20) This post documents a practical, works-in-real-life upgrade

Makson Lee / February 10, 2026

This guide installs EJBCA Community Edition (example: r9.3.7) on Ubuntu 24.04, using WildFly as the application server and MariaDB as

Makson Lee / January 30, 2026

Short outage method: Stop → Backup → Upgrade → Start Example upgrade: 26.4.6 → 26.5.2 This post upgrades a Keycloak

Makson Lee / January 27, 2026

This is a follow-up to my Teleport installation guide: That post builds a single-node Teleport cluster (Auth + Proxy +

Makson Lee / January 27, 2026

This guide installs a single-node Teleport cluster (Auth + Proxy + SSH service on one host) on Ubuntu 24.04, secured

Makson Lee / January 23, 2026

This post shows how to move a single-node Vault OSS deployment from one EC2 instance to another existing EC2 host

Makson Lee / January 20, 2026

This is the reverse of my previous migration (VMware Workstation → KVM). The safe, repeatable flow is: Shutdown the VM

Makson Lee / January 9, 2026

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:

Makson Lee / January 7, 2026

This post shows a complete, reproducible flow: Lab context Important: The following CloudShell script is for this post’s use case