Traveling Consultant's Guide to Auditing UNIX - Mark Adams - Bog

This book highlights the key aspects of UNIX operating systems that auditors need to focus on when performing their audits. Everything is laid out in a concise and easy to understand manner, and includes links to online resources.
Topics include file and directory permissions, access control, password security, network security, and so on. In addition to general UNIX auditing, Solaris, Red Hat Enterprise Linux, AIX,and HP-UX are covered.