Australia's Leading Computer Emergency Response Team

AusCERT UNIX and Linux Security Checklist
Date: 25 July 2007
Original URL:

The current version is 3.0, which is now released to the general public: AusCERT UNIX and Linux Security Checklist v3.0.

This document aims to assist system administrators in organisations of all sizes by
providing a concise guide to running UNIX and Linux systems securely.

In version 3.0, the checklist has been fully updated, and is structured to follow
the lifecycle of the system, covering the steps to be considered at
each stage from initial planning to maintenance.

We welcome feedback on this document, via email to