Lynis

Open source auditing

https://cisofy.com/documentation/lynis/get-started/#installation-git

Lynis is an open source security auditing tool. Used by system administrators, security professionals, and auditors, to evaluate the security defenses of their Linux and UNIX-based systems. It runs on the host itself,

so it performs more extensive security scans than vulnerability scanners. It is also the client in our Lynis Enterprise offering.
Supported operating systems

Lynis runs on almost all UNIX-based systems and versions, including:

    AIX
    FreeBSD
    HP-UX
    Linux
    macOS
    NetBSD
    OpenBSD
    Solaris
    and others ```