Run hostname.
hostname
Mission 352
Local name resolution
Compare hostname, hosts-file, and resolver configuration evidence.
Networkinghostnamecatgrep
Lesson 352 of 360
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Networking · 8 minutes
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learner@clairos:/home/learner $
Unix ops lab: type a command, press Enter
Instructions
8 minutes
Click any instruction for the command details, the why, and the common mistake to avoid.
Run cat /etc/hosts.
cat /etc/hosts
Run grep nameserver /etc/resolv.conf.
grep nameserver /etc/resolv.conf
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Lesson support
What to notice while you play.
Build repeatable confidence with understanding local name-resolution inputs.
Start with hostname, inspect the result, then continue in order.
Understanding local name-resolution inputs helps operators explain what they know before they change anything.
- Skipping the output that proves understanding local name-resolution inputs.
- Changing several things before recording a baseline.
Reference
Commands in this lesson.
cat <file>
Print text file contents.
grep [-i] <text> <file>
Find literal text inside a file.