Run cat /etc/resolv.conf.
cat /etc/resolv.conf
Checkpoint name resolution, routes, listeners, and SSH client context.
Networkingcatipssssh
Click any instruction for the command details, the why, and the common mistake to avoid.
Run cat /etc/resolv.conf.
cat /etc/resolv.conf
Run ip route.
ip route
Run ss -tulpn.
ss -tulpn
Run ssh -G lab.
ssh -G lab
Create a free account to sync completed lessons, XP, streaks, course status, and your next lesson across sessions.
Checking account status...
Progress sync is idle.
Progress sync stores completion IDs, scores, streaks, badges, and game settings. Terminal contents, editor snippets, lab scratch, email, and real names are never published on leaderboards or share cards.
Build repeatable confidence with assembling a complete local network baseline.
Start with cat /etc/resolv.conf, inspect the result, then continue in order.
Assembling a complete local network baseline helps operators explain what they know before they change anything.
cat <file>
Print text file contents.
ss|ip
Inspect simulated sockets and addresses.
ssh|scp|ssh-keygen
Practice SSH inspection and dry-run transfer shapes without network access.