Linux Security Hardening

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Internal

Overview

Steps

Minimal Footprint

Install a minimal image and add utilities as needed.

Eliminate Users

Remove all unneeded users.

Scan for Services Listening on Ports

 netstat -tupln

Eliminate:

sshd

Disallow root to log in.

Create a special login user with a random name and a long, random password.

TODO

  • Penetration detection.