🟠 High ⏱ 5–30 min Last verified: 15 April 2024 Affected versions: FreeBSD 14 📖 ~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 & […]
OpenSSL is the most widely used toolkit for working with SSL/TLS certificates on Linux systems. On RHEL 9, it provides everything you need to generate private keys, create certificate signing requests (CSRs), sign certificates using your own certificate authority, and convert between certificate formats. Understanding OpenSSL is essential for any sysadmin managing secure services. This […]
Docker containers are ephemeral by default — all data written inside a container is lost when the container is removed. Docker provides two mechanisms for persisting data and sharing files between containers and the host: volumes (managed by Docker, stored in /var/lib/docker/volumes/) and bind mounts (map a host directory directly into a container). Volumes are […]
Podman is RHEL 9’s default container engine and, unlike Docker, runs entirely rootless and integrates natively with systemd. Socket activation is a systemd feature that lets the kernel hold a listening socket open while the service is stopped; the moment the first connection arrives, systemd starts the corresponding service and hands the socket over. This […]
cAdvisor (Container Advisor) is an open-source daemon from Google that collects, aggregates, and exposes resource usage and performance metrics for every running container on a host. Unlike Docker’s built-in docker stats, cAdvisor exposes its data in Prometheus format, making it a natural fit for scraping alongside Node Exporter. This tutorial covers running cAdvisor on RHEL […]
Introduction This guide explains how to Use Podman 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 for fine-grained privilege separation. […]
NetworkManager is the default network management service on RHEL 9, and it provides a powerful command-line tool called nmcli for configuring network interfaces. Assigning a static IP address is a common requirement for servers that need a predictable, stable address on the network. This tutorial walks through every method available on RHEL 9 to configure […]
Helm is the package manager for Kubernetes — it allows defining, installing, and upgrading complex Kubernetes applications using charts, which are pre-configured packages of Kubernetes resource manifests. Instead of manually writing and applying dozens of YAML files for a complex application (deployments, services, config maps, secrets, ingress rules, RBAC), a single helm install command deploys […]
Introduction FreeBSD 14 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up carp high availability 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 […]
Introduction How to Install Keepalived for High Availability 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 […]
Progressive Robot: Your Gateway to Comprehensive IT Solutions — Specializing in Web Development, Mobile App Development, and Expert IT Services.
© All Copyright by Progressiverobot.com
VAT Number ( 506152326 )
