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Common Problems 117033

Ubuntu 22.04 LTS – swap does not activate after reboot – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 10 January 2023 Affected versions: Ubuntu 22.04 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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Common Problems 114619

High CPU Usage by systemd-journald on Busy Hosts

🟡 Medium   ⏱ 5–30 min  Last verified: 10 January 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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Common Problems 114600

System Boots to GRUB Rescue After Update

🟡 Medium   ⏱ 5–30 min  Last verified: 10 January 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 VLAN Tagging on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure VLAN Tagging on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure vlan tagging on IBM AIX 7.3 with practical […]

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How to Configure syslog on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure syslog on FreeBSD 12

Introduction Deploying configure syslog on freebsd 12 on a FreeBSD 12 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 + […]

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How to Configure Cloud-Init on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Cloud-Init on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure cloud-init on IBM AIX 7.3 with practical examples […]

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How to Configure Network File System Automount on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure Network File System Automount 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 configure network file system automount on ibm aix 7.2 […]

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Initial Server Setup with RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

Initial Server Setup with RHEL 9

Red Hat Enterprise Linux 9 (RHEL 9, codenamed “Plow”) is the most significant release of RHEL in years, built on Linux kernel 5.14, OpenSSL 3.0, and shipped with a hardened-by-default security posture including SELinux enforcing mode, nftables as the default firewall backend, and full support for the latest POWER, ARM, and x86_64 architectures. Whether you […]

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How to Configure Console and Terminal Settings on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Console and Terminal Settings on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure console and terminal settings on IBM AIX 7.3 […]

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How to Scan for Vulnerabilities with OpenVAS on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Scan for Vulnerabilities with OpenVAS on RHEL 9

OpenVAS, now distributed as Greenbone Community Edition (GCE), is one of the most comprehensive open-source vulnerability scanners available, capable of identifying thousands of known CVEs across network services, web applications, and operating system configurations. Installing it natively on RHEL 9 requires complex dependency management, so the recommended approach is to deploy it via Docker Compose, […]

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