Update the Custom DNS section in Wazuh Cloud Service

CHANGELOG.md

@@ -14,6 +14,7 @@ All notable changes to this project will be documented in this file.
 - **Post-release**: Added troubleshooting steps to the *Virtual Machine (OVA)* installation guide. ([#8562](https://github.com/wazuh/wazuh-documentation/pull/8562))
 - **Post-release**: Added a note in the installation guide about firewall configuration to prevent communication issues between Wazuh components. ([#8622](https://github.com/wazuh/wazuh-documentation/pull/8622))
 - **Post-release**: Added instruction to run Windows backup commands in CMD (Command Prompt) and not PowerShell. ([#8672](https://github.com/wazuh/wazuh-documentation/pull/8672))
+- **Post-release**: Added a new page on Update DNS certificates ([#2606](https://github.com/wazuh/internal-devel-requests/issues/2606))
 
 ### Changed
 

source/cloud-service/your-environment/custom-dns.rst

@@ -34,3 +34,9 @@ After providing the above and applying the configuration, create a ``CNAME`` DNS
 .. note::
 
    Your Wazuh Cloud environment is still accessible through the default URL, even if you have configured a custom domain.
+
+
+.. toctree::
+   :maxdepth: 1
+
+   update-custom-dns

source/cloud-service/your-environment/update-custom-dns.rst

@@ -0,0 +1,58 @@
+.. Copyright (C) 2015, Wazuh, Inc.
+
+.. meta::
+   :description: Check out how to update the certificates for your custom domain to access an environment in Wazuh Cloud. Learn more about it in this section of the documentation.
+
+Update your domain certificates
+===============================
+To keep your custom domain secured with a valid SSL/TLS certificate, you'll need to replace your existing certificates in the **Wazuh Cloud Console** from time to time.
+The process below walks you through removing the old certificates and uploading new ones, without touching your DNS records.
+
+-  **1. Log in & open the Custom DNS panel**:
+
+   -  Sign in to your Wazuh Cloud account.
+   -  From the main dashboard, go to your environment details page → **Manage** → **Custom DNS**.
+
+   .. thumbnail:: ../../images/cloud-service/custom-dns-menu.png
+      :title: Manage menu
+      :alt: Manage menu
+      :align: center
+      :width: 80%
+
+   -  The Custom DNS panel will pop up showing your current domain.
+
+   .. thumbnail:: ../../images/cloud-service/custom-dns-panel.png
+      :title: Custom DNS panel
+      :alt: Custom DNS panel
+      :align: center
+      :width: 80%
+
+-  **2. Remove the existing certificates**: 
+
+   -  Click the **Remove configuration** button, and wait for the page to reload.
+
+   .. thumbnail:: ../../images/cloud-service/custom-dns-remove-config.png
+      :title: Remove old configuration
+      :alt: Remove old configuration
+      :align: center
+      :width: 80%
+
+   -  Note that, at this moment, your environment's custom domain will briefly lose its HTTPS certificate, making it temporarily unreachable via that hostname.
+
+-  **3. Upload your new certificates**:
+
+   -  Re-open the Custom DNS panel if it closed.
+   -  Enter the desired custom domain name and, paste or upload your new certificate files ``(.crt/.pem)`` and its matching private key.
+
+   .. thumbnail:: ../../images/cloud-service/custom-dns-add-certs.png
+      :title: Add new certificates
+      :alt: Add new certificates
+      :align: center
+      :width: 80%
+
+   -  Click the **Apply** button to start deploying the new cert.
+
+-  **4. Wait for deployment & verify**:
+
+   -  The **Apply** button will show a loading spinner. This typically takes just a few seconds.
+   -  Once the configuration is complete, your environment will be accessible again via HTTPS at your custom domain. No DNS or ``CNAME`` changes are required.