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Assessment Title
Rule Text
The Photon operating system must disable systemd fallback Domain Name System (DNS).
Description
Discussion Text
Systemd contains an ability to set fallback DNS servers. This is used for DNS lookups in the event no system-level DNS servers are configured or other DNS servers are specified in the systemd "resolved.conf" file. If uncommented, this configuration contains Google DNS servers by default and could result in DNS leaking information unknowingly in the event DNS is absent or misconfigured at the system level.
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