Networking

How to Configure Kerberos Authentication on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Kerberos Authentication on Windows Server 2019

Introduction to Kerberos Authentication Kerberos is the default authentication protocol for Windows domain environments. Introduced with Windows 2000 and continually improved in Windows Server 2019, Kerberos provides mutual authentication—both the client and the server verify each other’s identity—and uses tickets rather than transmitting passwords over the network. Understanding Kerberos is essential for troubleshooting authentication failures, […]

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How To Use NSD, an Authoritative-Only DNS Server, on Ubuntu 14.04 — step-by-step Linux tutorial on Progressive Robot

How To Use NSD, an Authoritative-Only DNS Server, on Ubuntu 14.04

  • November 15, 2021
  • Linux
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NSD is an authoritative-only DNS server that is optimized to serve zone information quickly and efficiently. While some other DNS solutions provide value through their flexibility, NSD focuses on doing one task extremely well. In this guide, we will demonstrate how to configure NSD to authoritatively serve a domain on two servers in a primary-secondary configuration. We will be using Ubuntu 14.04 as the host system.

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How to Install containerd on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install containerd on FreeBSD 12

  • November 14, 2021
  • FreeBSD
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Introduction How to Install containerd 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 for packet filtering, and […]

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Common Problems 113543

Windows Server 2012 R2 — Persistent static route disappears after reboot — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 14 November 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 Configure PgBouncer Connection Pooling on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure PgBouncer Connection Pooling on FreeBSD 13

  • November 14, 2021
  • FreeBSD
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Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure pgbouncer connection pooling 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 Automate FreeBSD 12 Server Provisioning with Ansible — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Automate FreeBSD 12 Server Provisioning with Ansible

  • November 13, 2021
  • FreeBSD
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Introduction This guide explains how to Automate FreeBSD 12 Server Provisioning with Ansible 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 […]

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How to Set Up Harbor Container Registry on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up Harbor Container Registry on FreeBSD 13

  • November 13, 2021
  • FreeBSD
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Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up harbor container registry 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 Infrastructure as Code on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Configure Infrastructure as Code on FreeBSD 13

  • November 12, 2021
  • FreeBSD
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Introduction FreeBSD 13 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up configure infrastructure as code 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 and Configure vim and nano on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install and Configure vim and nano on RHEL 7

  • November 12, 2021
  • Linux
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How to Install and Configure vim and nano on RHEL 7 Every Linux system administrator spends a significant portion of their time editing configuration files, scripts, and documentation directly on the server. RHEL 7 includes the minimal vi editor by default, but the full-featured vim and the beginner-friendly nano are far more practical for daily […]

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How to Back Up and Restore MySQL Databases on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Back Up and Restore MySQL Databases on FreeBSD 13

  • November 11, 2021
  • FreeBSD
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Introduction Deploying back up and restore mysql databases 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 […]

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