Mission 138

Package security review

Inspect package metadata during a security review.

Security administration
8 minutes Advanced Lesson 138 of 360
aptdpkggrep
Lesson 138 of 360 0/360 lessons 0/17 missions Security administration · 8 minutes
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Ops lab terminal Training lab
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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.

Check openssh policy

Run apt policy fake-openssh.

apt policy fake-openssh
Check package status

Run dpkg -s fake-openssh.

dpkg -s fake-openssh
Review package log

Run grep upgrade /var/log/dpkg.log.

grep upgrade /var/log/dpkg.log
Lesson support

What to notice while you play.

Objective

Inspect package metadata during a security review.

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.

grep [-i] <text> <file>

Find literal text inside a file.

apt|dpkg|brew

Inspect simulated Linux and macOS package metadata.