Firewall

How to Install Nginx Ingress Controller on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Nginx Ingress Controller on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install nginx ingress controller on freebsd 13 on FreeBSD 13 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 Automate FreeBSD 13 Server Provisioning with Ansible — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Automate FreeBSD 13 Server Provisioning with Ansible

Introduction Deploying automate freebsd 13 server provisioning with ansible on a FreeBSD 13 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 […]

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Common Problems 125173

Oracle Linux 8 – Common Problem 021 – Diagnosis and Fix

🟡 Medium   ⏱ 5–30 min  Last verified: 5 July 2021 Affected versions: Oracle Linux 8 📖 ~3 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 Install Zabbix on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Zabbix on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up install zabbix on freebsd 13 on FreeBSD 13 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 […]

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How to Configure the System Timezone on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure the System Timezone on FreeBSD 13

Introduction How to Configure the System Timezone on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 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 […]

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How to Configure SAP HANA on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure SAP HANA on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure sap hana on ibm aix 7.2 on IBM […]

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How to Configure Performance Counter Alerts on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Performance Counter Alerts on Windows Server 2012 R2

How to Configure MMC Snap-ins on Windows Server 2012 R2 Microsoft Management Console (MMC) is the host application for virtually all Windows Server 2012 R2 administrative tools. Individual management capabilities are delivered as MMC snap-ins — Active Directory Users and Computers, DNS Manager, DHCP Manager, Group Policy Management, Certificate Manager, Computer Management, and dozens of […]

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Cómo configurar un firewall con UFW en Ubuntu 20.04 — step-by-step Linux tutorial on Progressive Robot

Cómo configurar un firewall con UFW en Ubuntu 20.04

UFW, o Uncomplicated Firewall, es una interfaz de gestión de firewall simplificada que oculta la complejidad de las tecnologías de filtrado de paquetes de nivel inferior, como iptables y nftables. Si desea comenzar a proteger su red y no está seguro respecto de la…

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How to Configure Tekton CI/CD on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Tekton CI/CD on FreeBSD 13

Introduction This guide explains how to Configure Tekton CI/CD on FreeBSD 13 on FreeBSD 13. 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 […]

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Common Problems 117535

SSH Connection Refused After Enabling UFW

🟠 High   ⏱ 5–30 min  Last verified: 1 July 2021 Affected versions: 20.04 📖 ~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 […]

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