unix security auditing tool
Lynis is best open source security auditing tool
you write kelsy, Lynis also supports OS like AIX, Linux, macOS, Solaris, OpenBSD, NetBSD
Lynis runs on almost all UNIX-based systems and versions, including:
AIX
FreeBSD
HP-UX
Linux
macOS
NetBSD
OpenBSD
Solaris
and others.