Networking

How to Audit Security with Lynis on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Audit Security with Lynis on FreeBSD 14

Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up audit security with lynis on freebsd 14 on FreeBSD 14 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 […]

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How to Deploy a Ruby on Rails Application on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Deploy a Ruby on Rails Application on FreeBSD 14

Introduction This guide explains how to Deploy a Ruby on Rails Application on FreeBSD 14 on FreeBSD 14. 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 […]

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How to Install Lua on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install Lua on FreeBSD 14

Introduction Deploying install lua 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 standard base + […]

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How to Install Jupyter Notebook on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Install Jupyter Notebook on FreeBSD 14

Introduction How to Install Jupyter Notebook 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 for packet filtering, […]

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How to Configure syslog-ng for Centralised Syslog on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure syslog-ng for Centralised Syslog on RHEL 9

syslog-ng is a high-performance, flexible syslog daemon that can act as a centralised log server, receiving log messages from dozens of remote hosts, filtering them, and writing them to organised file hierarchies or forwarding them to external storage systems. Unlike the default rsyslog that ships with RHEL 9, syslog-ng offers a powerful pattern-based configuration language […]

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Common Problems 120096

Debian 12 High I/O Wait Caused by Swap Thrashing

🟠 High   ⏱ 5–30 min  Last verified: 8 September 2024 Affected versions: Debian 12 📖 ~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 116636

Ubuntu 24.04 LTS – AppArmor denies application access unexpectedly – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 September 2024 Affected versions: Ubuntu 24.04 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 Configure auditd on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Configure auditd on FreeBSD 14

Introduction Deploying configure auditd 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 standard base + […]

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Common Problems 113463

Windows Server 2012 R2 — Unsigned boot driver blocked after policy hardening — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 8 September 2024 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Set Up a Kubernetes Dashboard on FreeBSD 14 — step-by-step FreeBSD 14 tutorial on Progressive Robot

How to Set Up a Kubernetes Dashboard on FreeBSD 14

Introduction How to Set Up a Kubernetes Dashboard 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 for […]

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