Bulk - EDP fix broken link (application-gateway0

Fix 1 broken link issue. See User story: [446435](https://dev.azure.com/msft-skilling/Content/_workitems/edit/446435)

Author: v-thepet

articles/application-gateway/self-signed-certificates.md

@@ -167,7 +167,7 @@ The following configuration is an example [NGINX server block](https://nginx.org
    ![Trusted root certificates](media/self-signed-certificates/trusted-root-cert.png)
 
    > [!NOTE]
-   > It's assumed that DNS has been configured to point the web server name (in this example, `www.fabrikam.com`) to your web server's IP address. If not, you can edit the [hosts file](https://answers.microsoft.com/en-us/windows/forum/all/how-to-edit-host-file-in-windows-10/7696f204-2aaf-4111-913b-09d6917f7f3d) to resolve the name.
+   > It's assumed that DNS has been configured to point the web server name (in this example, `www.fabrikam.com`) to your web server's IP address. If not, you can edit the [hosts file](https://learn.microsoft.com/answers/questions/4310469/host-file) to resolve the name.
 1. Browse to your website, and click the lock icon on your browser's address box to verify the site and certificate information.
 
 ## Verify the configuration with OpenSSL