Ask any security professional which area of IBM i security is most often ignored and chances are that the unanimous response is a chorus of “the Integrated File System.” Although it’s been around since V3R1, the Integrated File System, or IFS, remains a shrouded mystery that represents significant risk to many IBM i organizations.

A user’s ability to execute commands in a green-screen environment is controlled by the limit capabilities (LMTCPB) parameter on their profile. Although without exit programs to extend IBM i security functions, even limited capability users could invoke commands through network interfaces such as FTP.

Does this sound familiar? You recently experienced an “unplanned outage” after an administrator inadvertently issued a PWRDWNSYS command while mentoring a new operator.

File Integrity Monitoring (FIM) helps ensure that your critical and sensitive data is viewed and changed only by authorized personnel through approved channels. Candidates for FIM include application files containing sensitive data, such as personnel or financial data, and server configuration files.