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Common Problems 118412

Ubuntu 16.04 LTS – dpkg interrupted state blocks package operations – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 22 June 2021 Affected versions: Ubuntu 16.04 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 […]

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How to Set Up ModSecurity WAF with Apache on FreeBSD 13 — step-by-step FreeBSD 13 tutorial on Progressive Robot

How to Set Up ModSecurity WAF with Apache on FreeBSD 13

Introduction This guide explains how to Set Up ModSecurity WAF with Apache on FreeBSD 13 on FreeBSD 13. 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 […]

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Common Problems 112475

Windows Server 2019 — Install-Module fails because NuGet package provider is missing or outdated — Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 21 June 2021 Affected versions: Windows Server 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 […]

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How to Configure Active Directory Sites and Services on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Active Directory Sites and Services on Windows Server 2019

Introduction to Active Directory Sites and Services Active Directory Sites and Services is a Microsoft Management Console (MMC) snap-in that administrators use to manage the replication topology of Active Directory Domain Services (AD DS). Sites define the physical or logical grouping of well-connected IP subnets. By configuring sites correctly, you control how AD DS replication […]

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How to Set Up a Complete DevSecOps Pipeline on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Set Up a Complete DevSecOps Pipeline on RHEL 8

DevSecOps integrates security into every stage of the software delivery lifecycle rather than treating it as a final gate before release. On RHEL 8 you can assemble a complete DevSecOps pipeline from open-source components, all running on your own infrastructure: a Git server for source control, a CI/CD engine for automation, static analysis and container […]

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Common Problems 117494

Ubuntu 20.04 LTS NTP Time Drift Breaks TLS and Authentication

🟡 Medium   ⏱ 5–30 min  Last verified: 20 June 2021 📖 ~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 Configure Gitea Self-Hosted Git Service on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Configure Gitea Self-Hosted Git Service on Debian 9

Introduction Debian 9 Stretch is built around the ethos of stability and free software. Setting up configure gitea self-hosted git service 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 […]

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Common Problems 119132

Ubuntu 14.04 LTS Samba share authentication keeps failing

🟡 Medium   ⏱ 5–30 min  Last verified: 19 June 2021 Affected versions: 14.04 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 & […]

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Common Problems 117906

Ubuntu 18.04 LTS – apt update fails with Release file not valid yet – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 19 June 2021 Affected versions: Ubuntu 18.04 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 […]

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

How to Install Cassandra on FreeBSD 13

Introduction How to Install Cassandra 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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