Kernel Drivers

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

How to Install CouchDB on FreeBSD 12

Introduction How to Install CouchDB 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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How to Set Up a Python Django Application on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up a Python Django Application on Debian 9

Introduction How to Set Up a Python Django Application on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 […]

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Common Problems 113018

Windows Server 2016 – SMB Direct RDMA driver mismatch causes connection fallback – Fix and Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 30 November 2019 Affected versions: Windows Server 2016 📖 ~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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Debian 9 — qemu — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on Debian 9

Debian 9 — qemu — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 November 2019 Affected versions: Debian 9 (stretch) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2017-9310 CVE-2017-9524 CVE-2017-9375 CVE-2017-5715 CVE-2018-10839 CVE-2018-11806 CVE-2018-20815 CVE-2019-13164  +1 more Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – […]

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How to Enable FIPS Compliance on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Enable FIPS Compliance on Windows Server 2012 R2

How to Enable FIPS Compliance on Windows Server 2012 R2 The Federal Information Processing Standard (FIPS) 140-2 specifies the security requirements for cryptographic modules used in federal government systems. Many organizations in regulated industries also adopt FIPS compliance to meet contractual requirements or demonstrate due diligence. On Windows Server 2012 R2, enabling FIPS mode restricts […]

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How to Set Up Microsoft Defender on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Set Up Microsoft Defender on Windows Server 2019

Introduction to Microsoft Defender on Windows Server 2019 Microsoft Defender Antivirus is built into Windows Server 2019 and provides real-time protection against malware, ransomware, spyware, and other threats. On Windows Server 2019, Defender Antivirus integrates with Windows Defender System Guard, Windows Defender Credential Guard, and Microsoft Defender for Endpoint (the enterprise-grade EDR product). For basic […]

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How to Configure sudo for Non-Root Users on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure sudo for Non-Root Users on Debian 9

Introduction How to Configure sudo for Non-Root Users on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch 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 […]

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How to Manage Active Directory Replication on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Manage Active Directory Replication on Windows Server 2012 R2

How to Manage Active Directory Replication on Windows Server 2012 R2 Active Directory replication is the process by which changes made on one domain controller are propagated to all other domain controllers in the domain and forest. Replication ensures that the directory remains consistent across all DCs, regardless of which DC accepted the original change. […]

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How to Manage Active Directory at Scale with PowerShell on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Manage Active Directory at Scale with PowerShell on Windows Server 2016

Introduction Managing Active Directory at scale on Windows Server 2016 demands PowerShell automation. The ActiveDirectory module lets you create hundreds of users, manage group membership, audit accounts, and generate compliance reports in seconds rather than hours of manual effort. Installing the ActiveDirectory Module Install RSAT tools to get the AD PowerShell module: Add-WindowsFeature RSAT-AD-PowerShell Import-Module […]

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How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 7

How to Configure Apache mod_proxy as a Reverse Proxy on RHEL 7 Apache’s mod_proxy module transforms your existing Apache web server into a fully capable reverse proxy without requiring any additional software. On RHEL 7, Apache is the default web server and is frequently already running for other purposes. Rather than installing a second web […]

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