4 Systems & infrastructure

14 entries match these filters

• 0107 Proxmox VE command line cheat sheet: qm, pct, pvecm, pvesm and more The Proxmox VE commands you use most: qm for VMs, pct for containers, pvesm for storage, pvecm for the cluster, vzdump for… Intermediate · Reference · Linux Article Clusters & high availability · VMs & containers 15 Oct 2026
• 0108 List all Proxmox VE guests with status and locks (pvesh + jq) A Bash script that lists every VM and container in the cluster with node, status, lock, memory and uptime, using the Proxmox… Intermediate · Reference · Linux Script Shell scripting · VMs & containers 15 Oct 2026
• 0121 PCA 3.x Service CLI basics: connecting and finding your way around The Service CLI administers the Private Cloud Appliance 3.x Service Enclave. Connect with SSH on port 30006 and use list, show, help,… Intermediate · Reference · Any system Article Administration & monitoring 15 Oct 2026
• 0124 virsh cheat sheet: everyday libvirt commands A quick reference for virsh: list, start, stop and inspect VMs, change CPUs and memory, manage networks, storage pools and snapshots, with… Intermediate · Reference · Linux Article Basics 15 Oct 2026
• 0128 virsh status report: VMs, state, resources and IPs in one table A read-only bash script that prints a libvirt/KVM host report: virtual networks, storage pools, and every VM with its state, vCPUs, memory,… Intermediate · Reference · Linux Script Basics 15 Oct 2026
• 0140 kubectl cheat sheet: the commands you use every day A compact reference of everyday kubectl commands: contexts and namespaces, listing and inspecting objects, logs and exec, applying changes, rollouts, scaling and… Beginner · Reference · Any system Article Concepts · Troubleshooting 15 Oct 2026
• 0141 List Kubernetes pods that are not Running and Ready A bash script that lists every pod across namespaces that is Pending, failing or running but not ready, with the waiting reason,… Intermediate · Reference · Linux, macOS Script Troubleshooting 15 Oct 2026
• 0157 oc cheat sheet: everyday OpenShift CLI commands The oc commands you use every day, grouped by task: login and projects, apps and builds, routes, config, debugging, permissions and admin… Intermediate · Reference · Any system Article Deploying applications · Troubleshooting 15 Oct 2026
• 0159 OpenShift cluster health snapshot: oc adm, nodes, MachineConfigPools and updates An admin overview of OpenShift day-2 checks (cluster version, update channels, cluster Operators, nodes, MachineConfigPools, must-gather) with a read-only bash script that… Advanced · Reference · Linux, macOS Script Cluster administration · Troubleshooting 15 Oct 2026
• 0168 Server health check script: disk, memory and failed units A dependency-free bash script that checks disk and inode usage, available memory, load, failed systemd units and pending reboots, and exits non-zero… Intermediate · Reference · Linux Script Disks, LVM & filesystems · Services & systemd 15 Oct 2026
• 0174 Network and DNS troubleshooting commands: ip, ss, dig, resolvectl A layer-by-layer cheat sheet for "the server cannot reach X": interfaces and routes with ip, listening ports with ss, and name resolution… Beginner · Reference · Linux Article Networking & firewalls 15 Oct 2026
• 0176 apt vs dnf: package commands and automatic security updates The everyday package commands on Debian/Ubuntu (apt) and RHEL/Rocky/Alma (dnf) side by side, plus how to turn on automatic security updates on… Beginner · Reference · Linux Article Packages & updates 15 Oct 2026
• 0185 Ansible ad-hoc commands cheat sheet One-line ansible commands for quick jobs across many servers: ping hosts, run a command, copy files, manage packages, users and services, gather… Intermediate · Reference · Linux, macOS Article Ansible 15 Oct 2026
• 0193 Linux logs reference: journalctl, journald storage, logrotate and centralized logging Read and filter systemd journal logs, keep their disk use in check, rotate classic log files with logrotate, and understand when to… Intermediate · Reference · Linux Article Linux administration · Logs 15 Oct 2026