Introduction This tutorial demonstrates how to Set Resource Limits with /etc/security/limits.conf on RHEL 10 on RHEL 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 RHEL 10 system with the default AppStream […]
Rust is a systems programming language that guarantees memory safety without a garbage collector through its borrow checker. It is used for WebAssembly, operating systems, game engines, and high-performance network services. This guide installs Rust via rustup on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user account […]
Introduction This tutorial covers How to Configure Persistent Volumes in Kubernetes on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Disable Swap swapoff -a sed -i ‘/ […]
Introduction Deploying configure pyenv for multiple python versions on a FreeBSD 15 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 […]
Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure swap space 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 guide walks […]
Netdata is an open-source, real-time performance monitoring tool that provides per-second metrics for CPUs, RAM, disks, network, processes, and hundreds of applications out of the box. It requires zero configuration to get started. This guide installs Netdata on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS A user with […]
Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying configure mongodb authentication both straightforward and auditable. This tutorial covers the complete procedure for how to Configure MongoDB Authentication on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites You will need: […]
🟡 Medium ⏱ 5–30 min Last verified: 24 June 2026 Affected versions: RHEL 10 RHEL 10.0 RHEL 10.1 📖 ~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 & […]
Introduction How to Configure GELI Disk Encryption 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 […]
Introduction Deploying configure hashicorp vault on a FreeBSD 15 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 + ports approach […]
