Bit Happens

Troubleshooting guides and tools for IT, networking, data and AI, for when bit happens. Nine guides, 80+ tools. Works offline after your first visit.

Network Ops Analyst Field Guide

Switching, routing, wireless and fiber from the cable up: commands, playbooks, a guided ticket mode, 25 analyzers and a MAC vendor lookup.

NetworkingAnalyzersPlaybooks

Security

Threats, identity, detection and incident response, with an email header analyzer, URL inspector, certificate decoder, IOC extractor and CVSS calculator.

SecurityPhishingIncident response

Systems Admin

Active Directory, Group Policy, Windows Server and Linux, with an event ID lookup, AD timestamp converter, cron builder and RAID calculator.

ServersActive DirectoryLinux

Help Desk

Triage, accounts, PCs, printers, Outlook and Teams, with a ticket note builder, user message templates, error code lookup and quick-fix scripts.

SupportTicketsWindows

Cloud

AWS, Azure, Google Cloud and Microsoft 365, with a service translator, VPC planner, IAM policy explainer and cost and SLA calculators.

AWSAzureMicrosoft 365

Scripting & DevOps

Git, Python, PowerShell, Bash, APIs and containers, with a regex tester, JSON/YAML/CSV converter, JWT decoder and diff tool.

AutomationGitAPIs

Healthcare IT

HL7, FHIR, DICOM, clinical devices and downtime, with an HL7 message parser, ACK builder, DICOM tag lookup and code checkers.

HL7DICOMClinical

Data Science | Analytics | AI

Statistics, SQL, Python, R, machine learning, AI and LLMs: reference, 10 playbooks and 15 tools, from a dataset profiler to a prompt builder.

Data scienceAIStatistics

IT Career & Certs

Career paths, certifications, study plans and interviews, with practice quizzes, a study planner, roadmap and resume bullet builder.

CareerCertsStudy