Networking

Common Problems 117461

Ubuntu 20.04 LTS Netplan Apply Breaks Remote Connectivity

🟠 High   ⏱ 5–30 min  Last verified: 24 July 2020 Affected versions: 20.04 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 & […]

Read more
How to Enable CIS Benchmarks on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Enable CIS Benchmarks on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to enable cis benchmarks on ibm aix 7.2 on IBM […]

Read more
How to Configure iptables Packet Filtering on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure iptables Packet Filtering on Debian 10

Introduction Deploying configure iptables packet filtering on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will […]

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

How to Configure Group Policy Preferences on Windows Server 2016

How to Set Up Windows Server 2016 Group Policy Preferences Group Policy Preferences (GPP) extend the traditional Group Policy settings model by providing a richer set of configuration items that can be applied, updated, or removed based on targeting conditions. Introduced in Windows Server 2008 and fully supported in Windows Server 2016, GPP covers drive […]

Read more
Common Problems 118510

Ubuntu 16.04 shutdown hangs for several minutes

🟡 Medium   ⏱ 5–30 min  Last verified: 23 July 2020 📖 ~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 Network Bonding on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure Network Bonding on SLES 15

Introduction This tutorial covers How to Configure Network Bonding on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh […]

Read more
How to Configure ZFS on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure ZFS on Debian 10

Introduction How to Configure ZFS on Debian 10 is a fundamental operation for any administrator maintaining a Debian 10 Buster server. Debian 10 Buster ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 10. This tutorial […]

Read more
How to Set Up Dovecot IMAP Server on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set Up Dovecot IMAP Server on Debian 10

Introduction This guide explains how to Set Up Dovecot IMAP Server on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with […]

Read more
How to Install Windows Admin Center on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Install Windows Admin Center on Windows Server 2016

How to Configure Windows Server 2016 Windows Admin Center Windows Admin Center is a modern, browser-based management platform developed by Microsoft that brings together a comprehensive set of tools for managing Windows Server 2016 and later versions. It can be installed on a Windows Server or a Windows 10/11 workstation and provides a unified console […]

Read more
How to Use PowerShell for Automated Deployments on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Use PowerShell for Automated Deployments on Windows Server 2012 R2

How to Use PowerShell for Automated Deployments on Windows Server 2012 R2 PowerShell is the native automation language of Windows Server, and on Windows Server 2012 R2 with PowerShell 4.0, it provides a comprehensive toolkit for building reliable automated deployment pipelines. Unlike third-party deployment tools, PowerShell deployments require no additional software licenses, integrate directly with […]

Read more
CHAT