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

How to Install SQLite on FreeBSD 13

Introduction How to Install SQLite 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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Common Problems 121648

Sudo Fails Due to Incorrect /etc/sudoers Permissions

🔴 Critical   ⏱ 5–30 min  Last verified: 9 November 2021 Affected versions: Debian 9 📖 ~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 & […]

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How to Set Up Unbound DNS Resolver on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up Unbound DNS Resolver on FreeBSD 13

Introduction How to Set Up Unbound DNS Resolver 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 […]

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Common Problems 117569

Ubuntu 20.04 disk space full due to logs and cache

🟡 Medium   ⏱ 5–30 min  Last verified: 8 November 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 Configure Traefik Reverse Proxy on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Traefik Reverse Proxy on FreeBSD 13

Introduction Deploying configure traefik reverse proxy on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard […]

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How to Configure ModSecurity WAF with Apache2 on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure ModSecurity WAF with Apache2 on Debian 9

Introduction This guide explains how to Configure ModSecurity WAF with Apache2 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 […]

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

How to Install OpenVPN on FreeBSD 13

Introduction This guide explains how to Install OpenVPN 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 114961

RHEL 8 Podman Image Pull Fails with x509 Unknown Authority

🟡 Medium   ⏱ 5–30 min  Last verified: 7 November 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 a Git Server with Gitea on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up a Git Server with Gitea on FreeBSD 13

Introduction Deploying set up a git server with gitea on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely […]

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Common Problems 118976

Ubuntu 14.04 LTS – filesystem remounts read-only after I/O errors – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 5 November 2021 Affected versions: Ubuntu 14.04 LTS 📖 ~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 […]

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