cat <file>
Print text file contents.
Addresses, routes, listeners, firewall context, DNS files, and SSH dry runs.
Inspect interface addresses and routes.
Advanced 02 Networking Socket listening reviewRead listener state with ss.
Advanced 03 Networking Lsof network reviewUse lsof to map listeners to services.
Advanced 04 Networking SSH config dry runResolve SSH client config without connecting.
Advanced 05 Networking SSH versionRead client version and server settings.
Advanced 06 Networking SCP planPreview secure-copy command shape without transfer.
Advanced 07 Networking DNS file reviewInspect resolver configuration as text.
Advanced 08 Networking Hosts file reviewInspect local host mappings.
Advanced 09 Networking Firewall service matchCompare firewall rules with service listeners.
Advanced 10 Networking Port inventory textNormalize and count port inventory text.
Advanced 11 Networking Network log grepSearch logs for link and access clues.
Advanced 12 Networking Interface baselineRecord a basic network baseline.
Advanced 13 Networking Listener baselineCapture and inspect listener baseline output.
Advanced 14 Networking SSH key contextConnect key fingerprints to SSH client config.
Advanced 15 Networking Networking checkpointTie addresses, listeners, firewall, and SSH config together.
Capstone Checkpoint 16 Networking Route readingRead IP address and route information together.
Admin 17 Networking DNS hosts comparisonCompare resolver and hosts file context.
Admin 18 Networking Listener ownershipMap listeners to processes and service state.
Admin 19 Networking Firewall port inventoryCompare firewall rules to a port inventory file.
Admin 20 Networking SSH dry-run reviewResolve SSH config and key context without connecting.
Admin 21 Networking SCP transfer planPlan a copy command without opening a network connection.
Admin 22 Networking Interface evidence captureCapture interface and route evidence into lab notes.
Admin 23 Networking Network incident logsSearch kernel and access logs for network clues.
Advanced 24 Networking Local name resolutionCompare hostname, hosts-file, and resolver configuration evidence.
Admin 25 Networking Route listener firewall correlationRead the route, active listeners, and firewall policy as one network baseline.
Advanced 26 Networking Networking bridgeCheckpoint name resolution, routes, listeners, and SSH client context.
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cat <file>
Print text file contents.
grep [-i] <text> <file>
Find literal text inside a file.
tee <file>
Write piped text to a lab file and keep it on screen.
wc [-l] <file>
Count lines, words, and characters.
sort|uniq
Practice simple text pipelines.
sha256sum <file>
Print a deterministic training checksum.
stat <path>
Show lab file details.
lsof
Show simulated files and sockets opened by services.
systemctl status <service>
Inspect simulated service status.
ss|ip
Inspect simulated sockets and addresses.
ssh|scp|ssh-keygen
Practice SSH inspection and dry-run transfer shapes without network access.
ufw status
Inspect simulated firewall rules.