Files
Piotr Mlocek aead95b7ab fix(policy): propose rules for unknown DNS hosts (#3707)
* fix(policy): propose rules for unknown DNS hosts

Signed-off-by: Piotr Mlocek <pmlocek@nvidia.com>

* docs(policy): clarify synthetic DNS use across protocols

Signed-off-by: Piotr Mlocek <pmlocek@nvidia.com>

* fix(policy): harden unknown-host DNS observations

- Emit the policy_dns_ineligible denial for every unknown name and
  report observation staging failures as DNS failure events.
- Refuse unknown names during fail-closed quarantine and after the
  observation budget, now a quarter of each address family's pool.
- Pin transparent TCP to the mapping of the deciding policy generation
  so a reload between DNS and authorization fails closed.
- Stop Docker workloads from inheriting host DNS search domains, which
  let the first expanded short name claim an observation address.
- Share mechanistic draft polling in conformance, register
  new-hostname-proposal in the installed suite, and update docs.

Signed-off-by: Piotr Mlocek <pmlocek@nvidia.com>

* test(policy): build policy DNS proxy tests on every target

The proxy tests name PolicyEndpointId, which proxy.rs imported only on
Linux, so the macOS test build failed. Import it for test builds too.

Signed-off-by: Piotr Mlocek <pmlocek@nvidia.com>

* fix(policy): name DNS queries and mapped hosts in OCSF denials

DNS denial and failure events attached port 53 to the queried name,
which read as a connection to that host. They now carry only the name.
Transparent TCP denials for a policy DNS address show the mapped
hostname and keep the synthetic address in dst_endpoint.ip.

Signed-off-by: Piotr Mlocek <pmlocek@nvidia.com>

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Signed-off-by: Piotr Mlocek <pmlocek@nvidia.com>
2026-09-25 08:28:41 +00:00
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