Networking

How to Manage Users and Groups on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Manage Users and Groups on FreeBSD 12

Introduction Deploying manage users and groups on freebsd 12 on a FreeBSD 12 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 Configure NTLM Authentication on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure NTLM Authentication on Windows Server 2016

How to Set Up Windows Server 2016 NTLM Authentication NTLM (NT LAN Manager) is a challenge-response authentication protocol that predates Kerberos in the Windows ecosystem. While Kerberos is the preferred authentication protocol in Windows Server 2016 Active Directory environments, NTLM is still used in several scenarios: when clients connect using IP addresses instead of DNS […]

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How to Set Up ZFS Send and Receive on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up ZFS Send and Receive on FreeBSD 12

Introduction How to Set Up ZFS Send and Receive on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 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 […]

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Common Problems 113426

Windows Server 2012 R2 – tcpip.sys DPC latency spikes degrade throughput – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 10 August 2019 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 Deploy a Ruby on Rails Application on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Deploy a Ruby on Rails Application on RHEL 8

Ruby on Rails is a full-stack web framework that prioritises convention over configuration, making it possible to stand up a production-ready application in minutes. Deploying Rails on RHEL 8 involves generating the application, running database migrations, serving it through the built-in Puma application server, and placing Nginx in front as a reverse proxy. This tutorial […]

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

How to Configure SSH Hardening 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 configure ssh hardening 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. […]

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How to Configure Nginx as a Reverse Proxy on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Configure Nginx as a Reverse Proxy 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 configure nginx as a reverse proxy 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 […]

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Common Problems 118093

Nginx 502 Bad Gateway with PHP-FPM

🟡 Medium   ⏱ 5–30 min  Last verified: 8 August 2019 📖 ~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 Install and Configure Kubernetes on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Install and Configure Kubernetes on Debian 9

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

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How to Harden Windows Server 2012 R2 with CIS Benchmark Guidelines — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Harden Windows Server 2012 R2 with CIS Benchmark Guidelines

How to Harden Windows Server 2012 R2 with CIS Benchmark Guidelines The Center for Internet Security (CIS) publishes detailed hardening benchmarks for every major operating system, including Windows Server 2012 R2. Implementing the CIS Benchmark reduces your attack surface by disabling unnecessary services, tightening authentication policies, restricting dangerous protocols, and ensuring audit logging captures security-relevant […]

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