Puppet Learning VM Setup Guide: Import, Networking, SSH Access, and Troubleshooting
Learn how to set up the Puppet Learning VM from the OVA download through first login, networking, and web access. This revised guide also consolidates the most useful troubleshooting fixes from the original courseware.
Install Jenkins with Docker: Persistent Setup, Port Mapping, and Logs
Learn how to run Jenkins in Docker with correct port mapping, persistent storage, and operational commands. This updated guide keeps the original workflow but adds modern, production-minded practices.
Linux Commands and Shell Scripting Reference for Linux Admins and DevOps Engineers
A structured Linux command and shell scripting reference for operations and DevOps work, rebuilt from the original link collection. It includes a practical learning workflow, command comparison tables, ready-to-use examples, and curated source links.
Install Atlassian Jira with Docker: Quick Start, Persistent Volumes, and Deployment Checks
This guide shows how to run Jira in Docker using the original one-line command, then improve it with persistent storage and repeatable deployment steps. It also includes a workflow diagram, command examples, and practical validation checks.
Install Sonatype Nexus with Docker: RM2/RM3 Commands, Validation Steps, and Important Caveats
A structured, production-minded rewrite of the original 2016 Docker setup for Sonatype Nexus Repository Manager 2 and 3. Includes command examples, a workflow diagram, and clear warnings about outdated tags/endpoints.
Host Your Own NuGet Feed: Local Source vs NuGet.Server vs NuGetGallery
Learn how to host a private NuGet feed using three practical approaches: a local folder source, NuGet.Server, and NuGetGallery. This revised guide includes setup steps, command examples, and a workflow diagram to help you choose the right model.
Install and Configure Gerrit on CentOS and Ubuntu (MySQL + Apache Reverse Proxy)
A practical, step-by-step guide to installing Gerrit for code review on CentOS/RHEL and Ubuntu/Debian. Includes package command comparisons, setup workflow, Apache proxy configuration, and verification checks.
Publish NuGet Packages to NuGet.org: CLI Steps, Workflow, and CI Example
Learn how to publish a NuGet package to NuGet.org using either nuget.exe or the dotnet CLI. This revised guide includes a workflow diagram, command comparison, and a CI-friendly example.
How to Create NuGet Packages with nuget.exe (Assembly, .nuspec, and .csproj Methods)
Learn three practical ways to build NuGet packages using nuget.exe: from an existing assembly, from a convention-based folder layout, or directly from a Visual Studio project. This guide includes commands, folder conventions, token behavior, and common pitfalls.
AWS CLI Credentials Setup: Configure, Verify, and Secure Access
Learn how to configure AWS credentials with the AWS CLI, verify your identity, and understand where credentials are stored. This updated guide also compares profiles, environment variables, and role-based access.
Provision an AWS EC2 Instance with Chef (Legacy ChefDK Workflow)
A practical, step-by-step walkthrough for provisioning an AWS EC2 VM using the classic ChefDK and chef-provisioning approach. Includes workflow, commands, recipe examples, and validation checks for legacy environments.
How to Install ChefDK on RHEL, Ubuntu, macOS, and Windows (Legacy-Friendly Guide)
Learn a practical, cross-platform process to install ChefDK and verify it correctly on RHEL/CentOS, Ubuntu, macOS, and Windows. This guide also helps you decide when ChefDK is still appropriate versus Chef Workstation.
Jira on Linux: Installation and Configuration with Safer Service and Firewall Setup
Learn how to install Jira on Linux using Atlassian’s installer, manage it as a service, and expose port 8080 safely. This revision keeps the original references but updates the process for clearer, production-minded operations.
Jenkins Email-ext: Add Full or Regex-Filtered Build Logs to Email Body
Learn how to include Jenkins build logs directly in notification emails using email-ext tokens. This revised guide covers full-log and regex-filtered approaches for freestyle jobs and Pipeline templates.
Jenkins Backup and Restore Runbook: ThinBackup, Filesystem Archives, and Recovery Steps
A practical Jenkins backup and restore guide for DevOps teams, covering what to back up, strategy trade-offs, and step-by-step command examples. Includes a workflow diagram and a recovery checklist you can operationalize.
Jenkins Email-ext: Include Build Logs in Email Body (Full Log or Regex-Filtered)
Learn how to configure Jenkins Email Extension tokens to send either the full build log or targeted regex matches directly in the email body. This guide covers practical token examples, workflow, and pitfalls to avoid noisy or oversized alerts.
Continuous Inspection Pattern: A Practical Adoption Guide for DevOps Teams
Continuous inspection makes code quality and security checks continuous, visible, and enforceable across the delivery lifecycle. This guide shows how to select tools, tune verifications, wire CI checks, and enforce critical rules at commit time.
Perforce 2014 Server Upgrade Runbook: Verify, Checkpoint, Restore, and Validate
This guide converts the original Perforce 2014 upgrade notes into a practical runbook for production admins. It covers pre-checks, checkpoint-based recovery, post-upgrade verification, and migration cautions.
Perforce Server Disk Cleanup and Repository Size Management: A Safe, Practical Playbook
Running out of storage on a Perforce (Helix Core) server can quickly become an availability risk. This guide shows a safer cleanup workflow: measure space first, compare options, then execute changes with minimal operational risk.
Perl Punctuation and Sigils: Practical Symbol Reference with Examples
A clear reference to the punctuation marks you see most often in Perl code, including sigils, operators, delimiters, and quote forms. Includes usage tables, example snippets, and a quick decision flow for choosing the right sigil.
Jenkins Command-Line Authentication and Job Triggers with cURL and Wget
Learn practical ways to authenticate scripted requests to Jenkins and trigger jobs from the command line using cURL and wget. This revision also covers CSRF crumb handling, version caveats, and troubleshooting.
How to Assign Computer Startup Scripts with Group Policy (Local and Domain GPO)
Learn the exact steps to assign computer startup scripts through Group Policy, including where to configure them, how script order works, and how to validate deployment. This guide expands the original quick tip into a practical, production-ready reference.
Build Server Performance Optimization: Practical Checklist for Faster CI Pipelines
Build server performance issues usually come from unnecessary rebuilds, poor retention policies, and host-level contention. This updated guide turns the original checklist into a practical workflow with commands, architecture guidance, and CI guardrails you can apply immediately.
SCM Versioning Done Right: Four-Part File Versions, Build Numbers, and Safer Installers
Versioning in Software Configuration Management is how teams trace binaries to source, reproduce builds, and ship safer upgrades. This guide turns the original notes into a practical, modern workflow with version structure, CI stamping, and installer safeguards.
How to Choose the Right Version Control System for Your Organization
Choosing a version control product is a process decision, not just a tooling decision. Use this practical framework to evaluate requirements, compare models, run pilots, and select confidently.
How to Use `p4 duplicate` for a Perforce Branch Path Rename (Deep Rename)
When you need to move a Perforce branch path while preserving revision and integration history, `p4 duplicate` is the key command. This guide shows the workflow, exact commands, and cleanup considerations.
Executing External Commands in Perl: system, exec, backticks, and open Explained
Perl provides multiple ways to run external commands, and each one behaves differently. This guide shows when to use system, exec, backticks, or open, with safe patterns for output capture and exit-code handling.
Perforce Replication Explained: Topology, Requirements, and Practical Setup Commands
Perforce replication duplicates primary server data to read-only replicas for disaster recovery and workload offload. This revised guide covers architecture, requirements, limitations, and setup commands from the original notes.
Perforce Depot Migration Between Servers Without Losing History or Changelists
A practical migration workflow for moving Perforce depot data between servers while preserving history and changelist continuity. Includes a decision table, migration flow diagram, and command examples for backup, cleanup, and validation.
Perl File Test Operators Explained for DevOps Automation
Perl’s built-in file test operators let you check existence, type, size, permissions, and ownership without external commands. This guide explains the operators, real vs effective ID checks, and production-friendly patterns for automation scripts.