Networking

How to Set Up a Local Kubernetes Dev Cluster with Minikube on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up a Local Kubernetes Dev Cluster with Minikube on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up set up a local kubernetes dev cluster with minikube 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. […]

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Common Problems 119068

Ubuntu 14.04 LTS – network interface does not come up after reboot

🟠 High   ⏱ 5–30 min  Last verified: 19 October 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 […]

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Common Problems 118960

Ubuntu 14.04 LTS SSH Login Hangs After Banner Update

🟡 Medium   ⏱ 5–30 min  Last verified: 19 October 2021 Affected versions: 14.04 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 & […]

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How to Enable Brotli Compression in Nginx on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Enable Brotli Compression in Nginx on FreeBSD 13

Introduction How to Enable Brotli Compression in Nginx on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 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 for […]

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How to Deploy an Application to Kubernetes on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Deploy an Application to Kubernetes on FreeBSD 13

Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up deploy an application to kubernetes on freebsd 13 on FreeBSD 13 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 […]

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How to Configure MAC Policies on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure MAC Policies on FreeBSD 13

Introduction How to Configure MAC Policies on FreeBSD 13 is a core administration task for any FreeBSD 13 server operator. FreeBSD 13 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 for packet filtering, […]

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Common Problems 117634

Ubuntu 20.04 LTS Failed to Start Due to Broken fstab Entry

🟡 Medium   ⏱ 5–30 min  Last verified: 17 October 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 […]

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How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure HAProxy for HTTP and TCP Load Balancing on RHEL 8

HAProxy is a battle-tested open-source load balancer and proxy server that can distribute HTTP and raw TCP traffic across multiple backend servers with sub-millisecond overhead. On RHEL 8 it is available directly from the AppStream repository and integrates cleanly with firewalld and SELinux. This guide walks through installing HAProxy, writing a configuration that handles both […]

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How to Configure DNSSEC on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure DNSSEC on FreeBSD 12

Introduction This guide explains how to Configure DNSSEC on 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 separation. […]

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Common Problems 118593

Ubuntu 16.04 LTS – rsyslog forwarding fails to remote SIEM – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 16 October 2021 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 […]

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