Linux Fundamentals
A Linux lab covering navigation, file operations, redirection, SSH, and user permissions.
THE LAB JOURNAL
Learning, out in the open.
Walkthroughs, observations, and lessons from my IT labs. A record of what I’m practicing and how I’m thinking about it.
Nmap Basics
Comparing list enumeration, TCP connect scans, and service detection on a lab target.
Tcpdump Basics
Reading a packet capture and investigating ICMP, DNS, TCP flags, packet size, and ARP traffic.
Wireshark Basics
Inspecting an HTTP capture, filtering packets, following streams, and exporting an object in Wireshark.
Networking Secure Protocols
Using a provided TLS key log to inspect an HTTP/2 stream in a Wireshark lab capture.
Networking Core Protocols
Exploring DNS queries, domain records, HTTP requests, file transfers, and mail protocols in a lab.
Networking Concepts
Connecting to echo, daytime, and HTTP services to see how TCP ports and requests work.
Windows Fundamentals 3
Exploring Windows Security, firewall profiles, protection settings, and shadow copies in a lab VM.
Windows Fundamentals 2
A tour of Windows diagnostic tools: Event Viewer, services, Resource Monitor, and command-line utilities.
Windows Fundamentals 1
Practicing local account management, file permissions, system settings, and Task Manager in a Windows lab.