Firewall

How to Scan for Vulnerabilities with OpenVAS on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Scan for Vulnerabilities with OpenVAS on RHEL 7

How to Scan for Vulnerabilities with OpenVAS on RHEL 7 OpenVAS (Open Vulnerability Assessment System), now part of the Greenbone Vulnerability Management (GVM) framework, is one of the most capable open-source vulnerability scanners available. It maintains a continuously updated feed of over 50,000 Network Vulnerability Tests (NVTs) and can detect misconfigurations, outdated software, missing patches, […]

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How to Configure Fabric Deployment Tool on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Fabric Deployment Tool on Debian 9

Introduction This guide explains how to Configure Fabric Deployment Tool 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 […]

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How to Configure Initial Settings on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Initial Settings on Windows Server 2016

How to Configure Windows Server 2016 Initial Settings After installing Windows Server 2016, a series of initial configuration tasks should be completed before placing the server into production. These tasks include setting the hostname, configuring the time zone, assigning a static IP address, enabling Remote Desktop, configuring Windows Update, and joining an Active Directory domain […]

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Common Problems 114916

RHEL 8 firewalld Zone Mismatch Blocks Application Port

🟡 Medium   ⏱ 5–30 min  Last verified: 9 November 2019 📖 ~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 References & Further […]

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How to Install MinIO Object Storage on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install MinIO Object Storage on FreeBSD 12

Introduction Deploying install minio object storage on freebsd 12 on a FreeBSD 12 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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How to Configure IBM Rational Tools on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure IBM Rational Tools on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure ibm rational tools on ibm aix 7.1 on […]

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How to Configure GNU Make on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Configure GNU Make 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 gnu make on ibm aix 7.2 on IBM […]

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How to Install Certbot and Automate Let's Encrypt Renewals on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Certbot and Automate Let’s Encrypt Renewals on RHEL 7

How to Install Certbot and Automate Let’s Encrypt Renewals on RHEL 7 Securing your web server with a trusted TLS certificate is no longer optional — it is a baseline requirement for any production site. Let’s Encrypt provides free, automated, and domain-validated certificates, and Certbot is the official command-line client that manages the entire lifecycle: […]

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How to Configure ksh93 Advanced Scripting on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure ksh93 Advanced Scripting on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure ksh93 advanced scripting on ibm aix 7.1 on […]

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