Explains an idea
113 entries match these filters
- 0156 Operators, the software catalog (OperatorHub) and OLM on OpenShift Operators automate installing and running software on OpenShift. Learn the difference between cluster Operators and add-on Operators, and how OLM uses catalogs,… Intermediate · Explains an idea · Linux Article Cluster administration · Concepts 15 Oct 2026
- 0164 systemd services: systemctl and journalctl basics systemd starts and supervises services on most Linux servers. systemctl starts, stops and enables them; journalctl shows their logs. Beginner · Explains an idea · Linux Article Services & systemd 15 Oct 2026
- 0102 Proxmox VE storage types: local, LVM-thin, ZFS, NFS and Ceph Proxmox VE stores disks, ISOs, templates and backups in storage pools defined in /etc/pve/storage.cfg. Learn the main storage types, what local and… Intermediate · Explains an idea · Linux Article Disks, LVM & filesystems · Storage 15 Oct 2026
- 0105 High availability in Proxmox VE: HA resources, fencing and affinity rules Proxmox VE HA restarts VMs and containers on another node when a node fails. Learn the requirements, how watchdog fencing protects your… Advanced · Explains an idea · Linux Article Clusters & high availability 15 Oct 2026
- 0115 What is Oracle Private Cloud Appliance (PCA)? Hardware, enclaves and release lines Oracle Private Cloud Appliance is a factory-built rack of compute, storage and network hardware with its own cloud software. Release 3.x offers… Beginner · Explains an idea · Linux Article Architecture & concepts 15 Oct 2026
- 0116 PCA 3.x Compute Enclave concepts: tenancies, compartments, VCNs, instances, images and shapes The PCA 3.x Compute Enclave uses OCI building blocks: a tenancy holds compartments, which hold networks, instances and storage. Instances are built… Beginner · Explains an idea · Linux Article Architecture & concepts · Compute, networking & storage 15 Oct 2026
- 0122 PCA 3.x health monitoring and upgrade workflow overview How Private Cloud Appliance 3.x reports health (Grafana, Prometheus, Loki, platform health checks) and how appliance upgrades work: ISO images, an upgrade… Advanced · Explains an idea · Linux Article Administration & monitoring 15 Oct 2026
- 0123 KVM vs QEMU vs libvirt: how Linux virtualization fits together KVM is the Linux kernel part that uses CPU virtualization extensions, QEMU is the program that emulates a full machine around it,… Beginner · Explains an idea · Linux Article Basics 15 Oct 2026
- 0131 Kubernetes architecture: control plane, nodes, kubelet and etcd A Kubernetes cluster is a control plane that stores and decides the desired state, plus worker nodes that run your containers. This… Beginner · Explains an idea · Linux Article Concepts 15 Oct 2026
- 0132 Pods, ReplicaSets and Deployments explained A Pod runs one or more containers together, a ReplicaSet keeps a fixed number of identical Pods alive, and a Deployment manages… Beginner · Explains an idea · Linux Article Concepts · Workloads & services 15 Oct 2026