Networking

How to Use Capsicum Sandboxing on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Use Capsicum Sandboxing on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up use capsicum sandboxing on freebsd 12 on FreeBSD 12 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. […]

Read more
Common Problems 113029

Windows Server 2016 – Hyper-V virtual switch loses uplink after NIC driver update – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 February 2021 Affected versions: Windows Server 2016 📖 ~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 112504

Windows Server 2019 — UPN suffix routing fails for users in trusted forest — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 27 February 2021 Affected versions: Windows Server 2019 📖 ~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 Set Up Buildkite Agent on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Buildkite Agent on Oracle Linux 8

Introduction Setting up set up buildkite agent 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 Buildkite Agent on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to […]

Read more
How to Configure Server Manager on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Server Manager on Windows Server 2016

How to Set Up Windows Server 2016 Server Manager Server Manager is the central management console in Windows Server 2016 that consolidates the most common server administration tasks into a single dashboard. It provides a unified view of server status, role and feature management, event logs, performance data, and service health across both local and […]

Read more
How To Inspect Kubernetes Networking — step-by-step Kubernetes tutorial on Progressive Robot

How To Inspect Kubernetes Networking

Kubernetes is a container orchestration system that can manage containerized applications across a cluster of server nodes. Maintaining network connectivity between all the containers in a cluster requires some advanced networking techniques. In this article, we will briefly…

Read more
Common Problems 118989

Ubuntu 14.04 LTS – NTP sync fails and system clock drifts

🟡 Medium   ⏱ 5–30 min  Last verified: 26 February 2021 Affected versions: Ubuntu 14.04 LTS Ubuntu 14.04 Ubuntu 14.04.6 📖 ~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 […]

Read more
Common Problems 117901

Ubuntu 18.04 Wi-Fi Adapter Not Detected After Reboot

🟡 Medium   ⏱ 5–30 min  Last verified: 26 February 2021 📖 ~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 […]

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

How to Configure ArgoCD on Oracle Linux 8

Introduction Setting up configure argocd 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 ArgoCD on Oracle Linux 8, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]

Read more
Containers Checkpoint — step-by-step Docker tutorial on Progressive Robot

Containers Checkpoint

This checkpoint is intended to help you assess what you learned from our introductory articles to containers, where we introduced the container ecosystem alongside Docker and Kubernetes, two common container solutions.

Read more
CHAT