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docs: Update blocked ports list for NGINXaaS Azure listen directive #833

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Merged
merged 3 commits into from
Jul 17, 2025
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docs: Update blocked ports list for NGINXaaS Azure listen directive #833

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docs: update blocked ports list for NGINXaaS Azure listen directive
rnandwal-f5 Jul 17, 2025
7877d62
Remove port usage details.
rnandwal-f5 Jul 17, 2025
d81b8d8
Merge branch 'main' into NGINXaaS/Update-blocked-ports-documentation
JTorreG Jul 17, 2025
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4 changes: 3 additions & 1 deletion content/nginxaas-azure/getting-started/nginx-configuration/overview.md
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Expand Up @@ -74,7 +74,9 @@ Some directives cannot be overridden by the user provided configuration.

## NGINX listen port restrictions

- Due to port restrictions on Azure Load Balancer health probes, ports `19`, `21`, `70`, and `119` are not allowed. The NGINXaaS deployment can listen on all other ports.
- Due to port restrictions on Azure Load Balancer health probes, certain ports are not allowed for the `listen` directive in NGINX configuration. The following ports are blocked:
- `19`, `21`, `70`, `119` - Azure health probe restricted ports
- `49151`, `49153`, `5140`, `50000`, `54141`, `54779` - reserved ports to support other NGINXaaS features

- The [Basic]({{< ref "/nginxaas-azure/billing/overview.md#basic-plan" >}}) plan (and the deprecated Standard (v1) plan) supports a maximum of 5 listen ports in the NGINX configuration. Configurations that specify over 5 unique ports are rejected.

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