Setup SSL for custom domain to Azure App Service

 To set up SSL (Secure Sockets Layer) for a custom domain on an Azure App Service, you can follow these steps:


1. **Prepare Your Domain and DNS Records**:


   - Ensure you have a custom domain registered with a domain registrar.

   - Create DNS records (usually a CNAME or A record) to point to your Azure App Service. This typically involves setting up a CNAME or A record in your domain registrar's DNS settings that points to your Azure App Service's domain name.


2. **Purchase or Obtain an SSL Certificate**:


   - You can obtain an SSL certificate from a Certificate Authority (CA) like Let's Encrypt, or you can purchase one from a commercial CA.

   - If using Let's Encrypt, follow their documentation for generating a certificate.


3. **Add the SSL Certificate to Azure App Service**:


   - In the Azure Portal, go to your App Service.

   - Under the "Settings" section, find the "TLS/SSL settings."

   - Click on "Private Key Certificates" or "Public Certificates," depending on your certificate type.

   - Upload or import your SSL certificate.


4. **Configure Your Custom Domain**:


   - In your Azure App Service settings, go to "Custom Domains."

   - Add your custom domain and associate it with the SSL certificate you uploaded.

   - Azure will verify your domain ownership.


5. **Update DNS for HTTPS**:


   - After verifying the custom domain, make sure your DNS records (CNAME or A records) are pointing to your Azure App Service. The records must match the custom domain you've configured.


6. **Configure SSL Binding**:


   - In the "TLS/SSL settings" section, set the "HTTPS Only" option if you want to enforce HTTPS.

   - Add a custom binding for your custom domain if it's not automatically added.


7. **Test Your SSL Configuration**:


   - Wait for DNS changes to propagate. It might take some time for SSL to be provisioned.

   - You can use SSL checking tools to verify that your SSL certificate is correctly installed.


8. **Update Application Code (if needed)**:


   - Ensure that your application's code and settings are set up to use HTTPS. This may include updating application configuration to work with HTTPS, like updating URLs to use "https://" instead of "http://".


By following these steps, you can set up SSL for your custom domain on an Azure App Service. Keep in mind that the specific steps may vary slightly depending on changes in the Azure Portal's interface and your SSL certificate provider. Always consult the latest Azure documentation for the most up-to-date guidance.

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