What it checks
Services listening on 0.0.0.0/::.
Why it matters
Unnecessary external exposure widens the attack surface.
How to fix
Expose only what is needed; firewall/bind-limit the rest.
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.