Networking

Common Problems 118007

Ubuntu 18.04 High CPU from Runaway systemd Service

🟡 Medium   ⏱ 5–30 min  Last verified: 14 December 2020 📖 ~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 Set Timezone and NTP on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Timezone and NTP on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Timezone and NTP on Oracle Linux 8 on Oracle Linux 8. 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 Oracle Linux 8 system with the […]

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How to Install Docker Compose on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Docker Compose on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying install docker compose on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Docker Compose on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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Common Problems 118520

Ubuntu 16.04 sudo unable to resolve host error

🟡 Medium   ⏱ 5–30 min  Last verified: 12 December 2020 📖 ~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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Common Problems 113509

Windows Server 2012 R2 – SChannel TLS handshake failures after cipher hardening – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 12 December 2020 Affected versions: Windows Server 2012 R2 📖 ~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 […]

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How to Configure a Virtual Host in Apache on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure a Virtual Host in Apache on Oracle Linux 8

Introduction Setting up configure a virtual host in apache on oracle linux 8 on a Oracle Linux 8 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure a Virtual Host in Apache on Oracle Linux 8, with all the commands you need, the SELinux […]

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How to Configure Logrotate on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Logrotate on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure logrotate on debian 9 on Stretch leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Stretch freeze. Follow each step carefully and the resulting […]

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How to Configure Intrusion Detection with AIDE on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Intrusion Detection with AIDE 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 intrusion detection with aide on ibm aix 7.1 […]

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How to Set Up OpenVPN on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up OpenVPN on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying set up openvpn on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Set Up OpenVPN on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for […]

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How to Use Veeam Backup for Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Use Veeam Backup for Windows Server 2019

Introduction to Veeam Backup for Windows Server 2019 Veeam Backup and Replication is an enterprise-grade data protection solution widely used in production environments running Windows Server 2019. It supports agentless backup of VMware vSphere and Microsoft Hyper-V virtual machines, as well as agent-based backup for physical servers and cloud workloads. Veeam’s proprietary Changed Block Tracking […]

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