Introduction How to Set Up ZFS Send and Receive on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 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 […]
Ruby on Rails is a full-stack web framework that prioritises convention over configuration, making it possible to stand up a production-ready application in minutes. Deploying Rails on RHEL 8 involves generating the application, running database migrations, serving it through the built-in Puma application server, and placing Nginx in front as a reverse proxy. This tutorial […]
Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure ssh hardening on freebsd 12 on FreeBSD 12 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. […]
Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install and configure kubernetes on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and […]
How to Set Up WireGuard VPN on RHEL 7 WireGuard is a modern, high-performance VPN protocol built directly into the Linux kernel (from 5.6 onward) and available as a DKMS module on older kernels like those shipped with RHEL 7. Compared to OpenVPN and IPsec, WireGuard has a dramatically smaller codebase, faster handshake times, and […]
Introduction This guide explains how to Set Up ZFS on FreeBSD 12 on FreeBSD 12. 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 […]
Introduction This guide explains how to Set Up PostgreSQL Streaming Replication 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 […]
Introduction to Multi-Factor Authentication Multi-Factor Authentication (MFA) requires users to provide two or more verification factors before gaining access: something they know (password), something they have (phone, hardware token, smart card), or something they are (biometrics). Implementing MFA on Windows Server 2019 dramatically reduces the risk of credential-based attacks—even if a password is stolen, an […]
🟠 High ⏱ 5–30 min Last verified: 6 August 2019 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 […]
Introduction This guide explains how to Install and Configure Nomad 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 the […]
