Simple Application Server:Install an SSL certificate on Node.js (Linux)

Step 1: Create a Node.js server

1. Go to the Servers page in the Simple Application Server console.

2. On the Simple Application Server purchase page, configure the resources.

   For more information, see Create a Simple Application Server.

   In the Image section, select the Node.js 16.5.0 application image.

Step 2: Purchase SSL certificate

Step 3: Configure the SSL certificate

After a certificate is issued, its status changes to Issued. You must download and configure the certificate. For more information, see Deploy an SSL certificate.

1. Download the certificate.

   1. On the Commercial Certificates tab, select the certificate that you want to download, and then click Download in the lower-left corner of the certificate list.

      Note

      You can click Download only for SSL certificates in the Issued, Expiring, or Expired state.

   2. In the Batch Download Certificates dialog box, download the certificate for your server type.

      This example uses NGINX for forwarding, so you need to download the NGINX version.

      Warning

      After downloading the certificate, save it in a secure location to prevent a certificate leak.

      In the Batch Download Certificates dialog box, find the NGINX row (format: pem/key), and then click Download in that row.

   3. After decompressing the package, you get two files:

      drxxxcn.key
      drxxxcn.pem

2. Use a tool such as WinSCP or Xshell to upload the private key file (.key) and the certificate file (.pem) to a specified directory on the Simple Application Server, such as /home.

3. Connect to the Simple Application Server. For more information, see Connect to a Linux server.

4. Run the following commands to create an https_server_test.js file.

   cd /home
   sudo touch https_server_test.js

5. Run the following command to edit the https_server_test.js file.

   vim https_server_test.js

   Press the i key to enter insert mode, and then add the following content to the https_server_test.js file:

   // The https package is required to start an HTTPS service.
   // The fs package is required to read files.
   const https = require('https');
   const fs = require('fs');
   // Read the certificate files into the options object.
   // Use the readFileSync() method to sequentially read the files and start the service.
   const options = {
       key: fs.readFileSync('/home/cert-file-name.key'),
       cert: fs.readFileSync('/home/cert-file-name.pem')
   };
   // Create and start the server, and set the listening port number.
   https.createServer(options, (req, res) => {
       res.end('hello world\n');
   }).listen(443);

   Where:

   • /home/cert-file-name.key: The absolute path to the private key file you uploaded.

   • /home/cert-file-name.pem: The absolute path to the SSL certificate file you uploaded.

   Important

   Incorrect certificate file paths will cause the configuration to fail and prevent HTTPS access.

6. After adding the content, press the Esc key to exit insert mode. Then, enter :wq and press the Enter key to save the file and exit.

7. Run the following command to start the HTTPS server.

   sudo node https_server_test.js

8. Open a browser and visit https://<your_domain_name>.

   • A lock icon in the browser's address bar indicates a successful configuration. The page returns the expected content, such as hello world.

   • If your website is not accessible over HTTPS, verify that port 443 is enabled on your Simple Application Server and is not blocked by other tools. To open port 443, see Manage firewalls.