The article by Panos Koutsovasilis discusses the challenges and solutions for implementing file integrity monitoring (FIM) in Linux environments, particularly when dealing with older Linux kernels that lack support for modern tracing technologies like eBPF. It highlights the importance of FIM in protecting against unauthorized changes that could signal security breaches, and explores alternative methods such as inotify and audit, which come with their own limitations. The article introduces tk-btf, a Go-based library designed to enhance KProbes' portability and efficiency for older kernels by utilizing BTF metadata, significantly reducing the data required for effective FIM. This innovation is integrated into Auditbeat 8.14, offering two new FIM solutions: one using eBPF for modern kernels and another utilizing tk-btf for older systems. This development ensures robust FIM capabilities across diverse Linux systems and provides users with enriched file event data that includes user information, enhancing the security and integrity of digital infrastructures.