DNS

How to Install InfluxDB on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install InfluxDB on FreeBSD 13

Introduction How to Install InfluxDB on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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How to Install MongoDB on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install MongoDB on Debian 9 (DEBIAN-9-2)

Introduction This guide explains how to Install MongoDB on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with the standard repositories […]

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Common Problems 118111

Ubuntu 18.04 MySQL InnoDB Crash Recovery Loop

🟡 Medium   ⏱ 5–30 min  Last verified: 16 September 2021 📖 ~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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Common Problems 118001

Ubuntu 18.04 Suspend and Resume Freezes Laptop

🟡 Medium   ⏱ 5–30 min  Last verified: 16 September 2021 📖 ~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 Install MariaDB on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install MariaDB on FreeBSD 13

Introduction This guide explains how to Install MariaDB on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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Common Problems 117399

Ubuntu 20.04 apt lock errors during updates

🟡 Medium   ⏱ 5–30 min  Last verified: 15 September 2021 📖 ~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 Set Up Prometheus and Grafana Monitoring on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Set Up Prometheus and Grafana Monitoring on Windows Server 2016

How to Monitor Windows Server with Prometheus and Grafana on Windows Server 2016 Prometheus and Grafana form a powerful open-source monitoring stack widely used in both Linux and Windows environments. Prometheus is a time-series metrics database that scrapes exporters at regular intervals. Grafana is a visualization platform that queries Prometheus and renders dashboards. On Windows […]

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How to Install Apache2 on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Apache2 on FreeBSD 13

Introduction This guide explains how to Install Apache2 on FreeBSD 13 on FreeBSD 13. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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How to Install Cockpit Web Console on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Cockpit Web Console on Debian 9

Introduction Deploying install cockpit web console on debian 9 on a Debian 9 Stretch 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 Debian […]

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Common Problems 118923

Ubuntu 14.04 LTS apt-get update hash sum mismatch

🟡 Medium   ⏱ 5–30 min  Last verified: 13 September 2021 📖 ~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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