Dev
Install Oracle JDK 21 on Ubuntu 24.04/22.04
Oracle JDK 21 is a Long-Term Support release that brings virtual threads, pattern matching, and a range of…
Author
Josphat Mutai
CentOS
Fix Zimbra Access Denied and Upgrade Failed Errors
If you have ever seen Access denied for user 'root'@'localhost' followed by FATAL ERROR: Upgrade failed during a…
Containers
Install and Run Fedora CoreOS on KVM / OpenStack
Fedora CoreOS (FCOS) is a minimal, auto-updating, container-focused operating system built on the foundations of Fedora Linux and…
How To
Uninstall LibreOffice on Ubuntu and Install Alternatives
LibreOffice comes pre-installed on most Linux desktops, but not everyone needs it. Maybe you use Google Docs exclusively,…
Openshift
Run Local OpenShift (OKD) with CRC on RHEL 10 / Fedora
Running a local OpenShift cluster used to mean wrestling with Minishift and oc cluster up. Those methods are…
Linux Tutorials
Install Node.js 22 LTS on Fedora 42/41/40
Node.js 22 is the current Long-Term Support release, receiving security patches and bug fixes through April 2027. Fedora…
Databases
Install LevelDB on Ubuntu 24.04 / Debian 13
LevelDB is a fast key-value storage library developed by Google. It provides an ordered mapping from string keys…
How To
Configure a Logical Volume (LVM) Storage Pool in KVM
LVM (Logical Volume Manager) is a natural fit for KVM storage because it provides block-level volumes with thin…
How To
KVM Host Network Management with NetworkManager (nmcli)
Managing the network on a KVM hypervisor is one of those tasks that separates a functional lab from…
How To
Configure KVM Bridged Network with Netplan on Ubuntu 24.04
Netplan is the default network configuration tool on Ubuntu 24.04, sitting as a front-end that generates configuration for…
How To
Configure an iSCSI Storage Pool in KVM
iSCSI provides block-level shared storage over standard TCP/IP networks, making it a solid choice for KVM environments that…
How To
Configure an NFS Storage Pool in KVM
NFS (Network Filesystem) is the go-to shared storage option for KVM environments where you need multiple hypervisors accessing…