dnsdist With An ACL, A Rate Limit And A Cache
dnsdist from EPEL, whose own unit cannot read the config the package installs; the role fixes the ownership, adds an ACL, a per-client query limit and a packet cache, stops the security poll, and keys the console. The live test sees a client outside the ACL dropped, a 100-query burst cut to 20, and a wrong console key refused. Original role, live-tested on Rocky Linux 10.
Verification
Live-testedReally deployed to a container sandbox, proven idempotent (a second run changes nothing), verified against the role’s assertions, then torn down.
Conformance
- Static validation (yamllint · ansible-lint)
Provenance
- SHA-256 checksum
- Signature (pending)
Functional
- Live-tested - applied, verified, destroyed
Last verified 2026-10-03 · podman 4.9.3 · ansible 2.21.4 · how we verify
Cite it in your README
badge · attributionPaste this beside the module in the repository that uses it. The badge is rendered from this artifact's verification record, so it reads live-tested because the record says so, and the link lands on this page.
[](https://www.iac-bazaar.com/catalog/ansible-dnsdist?utm_source=syndication&utm_medium=readme&utm_campaign=artifact)
Ansible role 1.0.0, live-tested on IaC Bazaar: [dnsdist With An ACL, A Rate Limit And A Cache](https://www.iac-bazaar.com/catalog/ansible-dnsdist?utm_source=syndication&utm_medium=readme&utm_campaign=artifact)
```yaml
# dnsdist With An ACL, A Rate Limit And A Cache: https://www.iac-bazaar.com/catalog/ansible-dnsdist (download from your IaC Bazaar account)
```Preview:
Documentation
dnsdist
dnsdist from EPEL: a DNS load balancer on loopback in front of the resolvers you list, with an ACL, a per-client query rate limit, a packet cache, no security poll to PowerDNS, and the console on loopback behind a key generated on the host. Original role for EL 10, live-tested with podman on Rocky Linux 10.
No download, and no version to pin. EL 10 packages dnsdist in EPEL, so the
role installs it by name and takes what the distribution ships: a security
update arrives through dnf, not through a new release of this role. What the
role owns is the configuration and the proof that the service works.
The package's own service does not start. EPEL's unit runs as the dnsdist
user and checks the configuration in ExecStartPre, but the package installs
dnsdist.conf as root:root 0640 - unreadable to that user - so the stock
service loops on "Unable to read configuration file" (measured). The role
writes it root:dnsdist 0640. The unit keeps CAP_NET_BIND_SERVICE, which is how
it listens on 127.0.0.1:53.
Proven by queries. The live test resolves a name through dnsdist,
repeats it for the packet cache (cache hits counted), sees a query from
127.0.0.2 - outside the ACL - dropped without an answer, sends a burst of 100
queries from one address and gets at most 30 answered while a query two
seconds later is answered again, and reads the security status as 0 with no
"security status" line in the log. Both are needed: a poll logs such a line
whether it succeeds ("Polled security status ... OK") or fails, and
showSecurityStatus() reads 1 after a successful one (both measured).
A console that exits 0 when it refuses you. The console client takes its
key from setKey in its own configuration and ignores -k; given a wrong key,
it prints "The server closed the connection right away, likely indicating a
key mismatch" and exits 0 (measured). The live test asserts that message, and
the backends listed by a client holding the right key.
License
Commercial - IaC Bazaar EULA. (c) IaC Bazaar.
Usage code & full reference need an account
The complete copy-paste usage, the full input/output reference, and operational notes are free with an account - shown here and bundled in the download. Sign in and this section fills in.
- Variables
- Test
Related modules
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ansible-coredns
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ansible-powerdns
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ansible-bind-exporter
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