Merge branch 'main' into nim-nap-documentation

Author: balakoteswar

content/nginx-one/agent/overview/_index.md

@@ -1,5 +1,5 @@
 ---
 title: "Overview"
 weight: 100
-url: /nginx-one/agent/install-upgrade/
----
+url: /nginx-one/agent/overview/
+---

content/nginxaas-azure/getting-started/nginx-configuration/overview.md

@@ -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.
 

content/nginxaas-azure/quickstart/upgrade-channels.md

@@ -15,7 +15,7 @@ Maintaining the latest version NGINX Plus, operating system (OS), and other soft
 {{<bootstrap-table "table table-striped table-bordered">}}
 | Channel     | Description               |
 |-------------|---------------------------|
-| preview     | Selecting this channel automatically upgrades your deployment to the latest supported version of NGINX Plus and its dependencies soon after they become available. We recommend using this setting to try out new capabilities in deployments running in your development, testing, and staging environments. |
+| preview     | Selecting this channel automatically upgrades your deployment to the latest supported version of NGINX Plus and its dependencies soon after they become available. We recommend using this setting to try out new capabilities in deployments running in your development, testing, and staging environments. Avoid using it in your production environment. |
 | stable      | A deployment running on this channel will receive updates on NGINX Plus and its dependencies at a slower rate than the **Preview** channel. We recommend using this setting for production deployments where you might want stable features instead of the latest ones. This is the **default channel** if you do not specify one for your deployment. |
 {{</bootstrap-table>}}