Capacity Planning

Common Problems 115389

RHEL 7 yum metadata corruption causing package install failures

🟡 Medium   ⏱ 5–30 min  Last verified: 11 October 2020 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 & […]

Read more
How to Configure Caddy Web Server on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Configure Caddy Web Server on Oracle Linux 8

Introduction This tutorial demonstrates how to Configure Caddy Web Server 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 […]

Read more
How to Install and Configure AIDE on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure AIDE on RHEL 7

How to Install and Configure AIDE on RHEL 7 AIDE (Advanced Intrusion Detection Environment) is a host-based intrusion detection system (HIDS) that works by taking a cryptographic snapshot of your filesystem at a known-good point in time and then comparing the current state of the filesystem against that baseline to identify any files that have […]

Read more
How to Set Up Oracle Linux 8 Cluster with Oracle Grid Infrastructure — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Oracle Linux 8 Cluster with Oracle Grid Infrastructure

Introduction This tutorial demonstrates how to Set Up Oracle Linux 8 Cluster with Oracle Grid Infrastructure 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 […]

Read more
How to Install Icinga2 on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Icinga2 on Oracle Linux 8

Introduction Oracle Linux 8 ships with a stable, security-hardened base that makes deploying install icinga2 on oracle linux 8 both straightforward and auditable. This tutorial covers the complete procedure for how to Install Icinga2 on Oracle Linux 8, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

Read more
How to Set Up Active Directory Domain Services on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Set Up Active Directory Domain Services on Windows Server 2016

How to Install Active Directory Domain Services on Windows Server 2016 Active Directory Domain Services (AD DS) is the cornerstone of identity and access management in Windows environments. Installing AD DS on Windows Server 2016 allows you to create a new forest and domain, manage user accounts, computers, and group policies from a central location. […]

Read more
How to Install Lighttpd on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Install Lighttpd on Oracle Linux 8

Introduction This tutorial demonstrates how to Install Lighttpd 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 default AppStream […]

Read more
How to Set Up Istio Service Mesh on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Istio Service Mesh on Oracle Linux 8

Introduction Setting up set up istio service mesh 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 Set Up Istio Service Mesh on Oracle Linux 8, with all the commands you need, the SELinux and firewalld […]

Read more
Common Problems 118513

Ubuntu 16.04 LTS – failed package configuration leaves dpkg in broken state – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 3 October 2020 Affected versions: Ubuntu 16.04 LTS 📖 ~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 […]

Read more
Common Problems 113104

Windows Server 2016 — RID master pool exhaustion approaching: new objects refused soon — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 30 September 2020 Affected versions: Windows Server 2016 📖 ~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 […]

Read more
CHAT