Backup Recovery

Common Problems 116116

Bluetooth Adapter Missing or Pairing Fails

🟡 Medium   ⏱ 5–30 min  Last verified: 1 August 2026 📖 ~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 116007

Ubuntu 26.04 LTS – GRUB menu not shown and wrong kernel keeps booting – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 1 August 2026 Affected versions: Ubuntu 26.04 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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How to Set Up pgBouncer Connection Pooler on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up pgBouncer Connection Pooler on FreeBSD 15

Introduction How to Set Up pgBouncer Connection Pooler on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 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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How to Configure Percona XtraBackup on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure Percona XtraBackup on FreeBSD 15

Introduction Deploying configure percona xtrabackup on a FreeBSD 15 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 base + ports approach […]

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How to Configure GEOM RAID on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure GEOM RAID on FreeBSD 15 (ON-FREEBSD-15)

Introduction How to Configure GEOM RAID on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 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, […]

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Common Problems 116119

Ubuntu 26.04 LTS – fail2ban bans trusted subnet due to aggressive jail policy

🟡 Medium   ⏱ 5–30 min  Last verified: 31 July 2026 Affected versions: Ubuntu 26.04 LTS Ubuntu 26.04 Ubuntu 26.04.1 📖 ~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 […]

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Common Problems 115902

Ubuntu 26.04 LTS – apt install fails with broken dependencies – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 31 July 2026 Affected versions: Ubuntu 26.04 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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How to Set Up BGP Routing with BIRD on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up BGP Routing with BIRD on FreeBSD 15

Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up bgp routing with bird on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux distribution. […]

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How to Set Up rsync Backup Jobs on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Set Up rsync Backup Jobs on FreeBSD 15

Introduction How to Set Up rsync Backup Jobs on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 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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How to Install SQLite3 on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install SQLite3 on FreeBSD 15

Introduction This guide explains how to Install SQLite3 on FreeBSD 15 on FreeBSD 15. 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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