lynis

Security auditing tool

low risk

interactive breakdown — edit the command and press Explain
$ 
⚠ Risks & cautions
What it does

Runs a hardening audit and prints suggestions.

Examples
lynis audit systemFull audit · explain & risk-check →
Related
aide openssl
Open the full explainer →More in Users, Permissions & Security

Reference text is hand-written and may be incomplete — check man lynis for your version. Test destructive commands on a non-production system first.