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How to Build Grafana Dashboards for FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Build Grafana Dashboards for FreeBSD 12

Introduction This guide explains how to Build Grafana Dashboards for FreeBSD 12 on FreeBSD 12. 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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How to Use lssrc, startsrc, and stopsrc on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use lssrc, startsrc, and stopsrc 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 use lssrc, startsrc, and stopsrc on ibm aix 7.2 […]

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How to Install MongoDB on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install MongoDB on RHEL 8

MongoDB is a leading document-oriented NoSQL database that stores data in flexible JSON-like BSON documents, making it well-suited for applications with evolving schemas, hierarchical data, or high-throughput write workloads. MongoDB is not included in the RHEL 8 AppStream, so you must add the official MongoDB repository before installing. This guide walks through creating the MongoDB […]

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Common Problems 115429

RHEL 7 SELinux denial preventing httpd outbound connection

🟠 High   ⏱ 5–30 min  Last verified: 21 September 2019 Affected versions: RHEL 7 📖 ~2 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 .NET SDK and Runtime on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install .NET SDK and Runtime on RHEL 7

How to Install .NET SDK and Runtime on RHEL 7 The .NET platform from Microsoft is an open-source, cross-platform framework for building modern web applications, APIs, command-line tools, microservices, and more. Since .NET Core 3.x and the subsequent unified .NET 5+ releases, Linux has been a first-class deployment target — and Red Hat Enterprise Linux […]

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Common Problems 119091

Ubuntu 14.04 LTS rsyslog stops ingesting logs after disk saturation

🟡 Medium   ⏱ 5–30 min  Last verified: 20 September 2019 Affected versions: 14.04 📖 ~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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How to Set Up Chef Infra Client on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up Chef Infra Client on Debian 9

Introduction Deploying set up chef infra client on debian 9 on a Debian 9 Stretch machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]

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How to Configure auditd for Security Event Logging on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure auditd for Security Event Logging on RHEL 7

The Linux Audit Framework, managed by the auditd daemon, provides a comprehensive kernel-level mechanism for tracking security-relevant events on RHEL 7. Unlike application-level logging, the audit subsystem operates below the application layer, meaning that even a compromised process cannot suppress its own audit trail without also compromising the kernel. Properly configured, auditd records file access, […]

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How to Set Up FTP Server with vsftpd on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up FTP Server with vsftpd on FreeBSD 12

Introduction How to Set Up FTP Server with vsftpd on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 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 […]

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How to Configure System Center Orchestrator on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure System Center Orchestrator on Windows Server 2016

How to Configure Windows Server 2016 Orchestrator System Center Orchestrator is the runbook automation engine in the Microsoft System Center suite. Orchestrator allows IT teams to create visual workflows called runbooks that automate repetitive IT processes such as provisioning virtual machines, responding to SCOM alerts, processing service requests from SCSM, rotating logs, onboarding new users, […]

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