White paper on basic security and hardening procedures for AIX. Many of the features and functions shown throughout this guide are applicable to AIX 4.3 and above, but are more directed towards AIX 5.2. This guide attempts to cover a lot of ground and offers useful and necessary insight for anyone administering AIX machines.
You can download it from the following link: https://packetstormsecurity.com/files/download/33894/AIX_Security.pdf
Source: https://packetstormsecurity.com/files/33894/AIX_Security.pdf.html