Containers

How to Set Up Suricata IDS/IPS on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Suricata IDS/IPS on Debian 11

Introduction This guide explains how to Set Up Suricata IDS/IPS on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install with the […]

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How to Set Up pgBouncer Connection Pooler on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up pgBouncer Connection Pooler on Debian 11

Introduction Deploying set up pgbouncer connection pooler on debian 11 on a Debian 11 Bullseye machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]

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How to Install Rancher Desktop on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install Rancher Desktop on Debian 11

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up install rancher desktop on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and the […]

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How to Monitor MySQL with Percona Monitoring and Management on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Monitor MySQL with Percona Monitoring and Management on RHEL 9

Percona Monitoring and Management (PMM) is a free, open-source platform built on top of Prometheus, VictoriaMetrics, and Grafana that provides deep visibility into MySQL and other database workloads. PMM separates concerns into a centralised Server component (delivered as a Docker image) and a lightweight Client agent that runs on each database host. This guide walks […]

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How to Install and Configure k3s Lightweight Kubernetes on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Install and Configure k3s Lightweight Kubernetes on Debian 11

Introduction This guide explains how to Install and Configure k3s Lightweight Kubernetes on Debian 11 on Debian 11 Bullseye. Debian Bullseye uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 11 install […]

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How to Monitor Kubernetes with Prometheus and Grafana on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Monitor Kubernetes with Prometheus and Grafana on RHEL 8

Prometheus and Grafana are the de facto standard observability stack for Kubernetes, providing metrics collection, long-term storage, alerting, and rich dashboarding in a single integrated solution. The kube-prometheus-stack Helm chart bundles Prometheus, Grafana, Alertmanager, and a comprehensive set of pre-built Kubernetes dashboards and alert rules into a single deployment that takes minutes to install. This […]

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How to Set Up Kea DHCP Server on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Set Up Kea DHCP Server on Debian 11

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up set up kea dhcp server on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully […]

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Common Problems 117017

Ubuntu 22.04 Docker Daemon Fails with cgroup v2 Configuration Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 21 September 2022 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Configure ModSecurity WAF with Apache2 on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure ModSecurity WAF with Apache2 on Debian 11

Introduction How to Configure ModSecurity WAF with Apache2 on Debian 11 is a fundamental operation for any administrator maintaining a Debian 11 Bullseye server. Debian 11 Bullseye ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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How to Configure Bonding Network Interfaces on Debian 11 — step-by-step Debian 11 tutorial on Progressive Robot

How to Configure Bonding Network Interfaces on Debian 11

Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up configure bonding network interfaces on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully and […]

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