What it checks
Whether a max password age is set.
Why it matters
Non-expiring passwords are abusable long-term once leaked.
How to fix
Apply aging via login.defs / chage.
InfraGuard runs all 36 checks across your servers at once and grades each host A–F.
Track these versions on your own servers
InfraGuard collects installed software versions from every server and flags the ones with known vulnerabilities. Self-hosted — nothing leaves your network.