What it checks
Network interfaces in promiscuous mode.
Why it matters
Often enabled by packet-sniffing/credential-theft tools.
How to fix
If not a legitimate capture, disable it and investigate the owning process.
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.