Storage Disk

How to Back Up and Restore MySQL Databases on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Back Up and Restore MySQL Databases on FreeBSD 14

Introduction How to Back Up and Restore MySQL Databases on FreeBSD 14 is a core administration task for any FreeBSD 14 server operator. FreeBSD 14 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 […]

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How to Configure the pkg Package Manager on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure the pkg Package Manager on FreeBSD 14

Introduction Deploying configure the pkg package manager on freebsd 14 on a FreeBSD 14 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 […]

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How to Configure Disk Encryption with VeraCrypt on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure Disk Encryption with VeraCrypt on Debian 12

Introduction Deploying configure disk encryption with veracrypt on debian 12 on a Debian 12 Bookworm 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 Before […]

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How to Set Up Lynis Security Auditing on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Lynis Security Auditing on CentOS Stream 9

Introduction This tutorial demonstrates how to Set Up Lynis Security Auditing on CentOS Stream 9 on CentOS Stream 9. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 9 system with […]

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Common Problems 117109

Ubuntu 22.04 LTS – multipath or duplicate UUID causes slow boot waits

🟡 Medium   ⏱ 5–30 min  Last verified: 21 November 2023 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~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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How to Set Up IBM Installation Manager on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Set Up IBM Installation Manager on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up ibm installation manager on ibm aix 7.2 […]

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Common Problems 117062

Ubuntu 22.04 GRUB menu missing after update

🟡 Medium   ⏱ 5–30 min  Last verified: 20 November 2023 📖 ~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 journald Log Persistence on Debian 12 — step-by-step Debian 12 tutorial on Progressive Robot

How to Configure journald Log Persistence on Debian 12

Introduction Deploying configure journald log persistence on debian 12 on a Debian 12 Bookworm 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 Before you […]

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How to Perform System Dump Analysis with crash on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Perform System Dump Analysis with crash on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to perform system dump analysis with crash on ibm aix […]

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How to Set Up Swap Space on CentOS Stream 9 — step-by-step CentOS Stream 9 tutorial on Progressive Robot

How to Set Up Swap Space on CentOS Stream 9

Introduction CentOS Stream 9 ships with a stable, security-hardened base that makes deploying set up swap space on centos stream 9 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up Swap Space on CentOS Stream 9, including dnf module streams where applicable, systemd unit management, and the firewalld rules […]

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