DNS

How to Install Ruby with rbenv on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Ruby with rbenv on RHEL 7

How to Install Ruby with rbenv on RHEL 7 Ruby is a dynamic, expressive programming language favored for its clean syntax, productivity-oriented design, and thriving ecosystem. While RHEL 7’s system repositories provide a version of Ruby, it is typically outdated and may conflict with modern applications and gems that require a specific Ruby release. The […]

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Common Problems 112902

Windows Server 2016 — Conditional forwarders timing out across site-to-site VPN links on Windows Server 2016 DNS — Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 18 June 2021 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 […]

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How to Enable HTTP/2 in Nginx on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Enable HTTP/2 in Nginx on FreeBSD 13

Introduction Deploying enable http/2 in nginx on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard […]

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How to Use Docker Secrets on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Use Docker Secrets on FreeBSD 13

Introduction Deploying use docker secrets on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base […]

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How to Use Prometheus Blackbox Exporter on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Use Prometheus Blackbox Exporter 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 use prometheus blackbox exporter 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 Linux […]

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How to Install Nomad on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Nomad on FreeBSD 13

Introduction How to Install Nomad 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, and […]

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How to Install Docker Compose on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install Docker Compose on Debian 9 (DEBIAN-9-2)

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up install docker compose 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 […]

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Common Problems 113393

Windows Server 2012 R2 Storage Spaces Virtual Disk Degraded After Power Event – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 14 June 2021 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 Install Redis on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Install Redis on FreeBSD 13

Introduction Deploying install redis on freebsd 13 on a FreeBSD 13 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + […]

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How to Configure DNS over HTTPS on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure DNS over HTTPS on Windows Server 2019

Introduction to DNS over HTTPS on Windows Server 2019 DNS over HTTPS (DoH) encrypts DNS queries inside standard HTTPS traffic on port 443. Traditional DNS queries travel in plaintext over UDP or TCP port 53, exposing every hostname lookup to anyone monitoring the network — ISPs, attackers on public Wi-Fi, or enterprise security appliances. DoH […]

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