What it checks
passwd file perms (644, root-owned).
Why it matters
Write exposure allows account tampering.
How to fix
chown root:root, chmod 0644.
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.