Introduction How to Set Up Ansible 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, […]
Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure database backups with mysqldump 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. This […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install packer both straightforward and auditable. This tutorial covers the complete procedure for how to Install Packer on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites Before you begin, ensure you […]
🟠 High ⏱ 5–30 min Last verified: 17 June 2026 Affected versions: 26.04 📖 ~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 […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure filesystem quotas both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Filesystem Quotas on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites Before you begin, […]
Introduction This tutorial demonstrates how to Configure /etc/hosts and DNS Resolution on Oracle Linux 10 on Oracle Linux 10. 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 Oracle Linux 10 system with […]
Introduction Setting up install .net 8 sdk on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install .NET 8 SDK on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to […]
WireGuard is a modern, high-performance VPN protocol built into the Linux kernel. It is faster and simpler than OpenVPN and IPsec, using state-of-the-art cryptography. This guide sets up a WireGuard VPN server on Ubuntu 26.04 LTS and connects a client. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server with a public […]
Introduction This guide explains how to Configure OpenDKIM with Postfix 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 […]
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 drbd block replication 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. This […]
