Mission 163

Hosts file review

Inspect local host mappings.

Networking
8 minutes Advanced Lesson 163 of 360
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Lesson 163 of 360 0/360 lessons 0/17 missions 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.

Read hosts

Run cat /etc/hosts.

cat /etc/hosts
Find host mapping

Run grep clairos /etc/hosts.

grep clairos /etc/hosts
Inspect hosts file

Run stat /etc/hosts.

stat /etc/hosts
Lesson support

What to notice while you play.

Objective

Inspect local host mappings.

Hint

Run the commands in order and compare the outputs.

Why it matters

Junior operators build confidence by gathering evidence before changing systems.

Common mistakes
  • Skipping the inspection step.
  • Assuming one command tells the whole story.
Reference

Commands in this lesson.

cat <file>

Print text file contents.

grep [-i] <text> <file>

Find literal text inside a file.