Nginx SSL Certificate Update Debian Tutorial

This article will guide you on how to update your Nginx SSL certificate on your Debian system.

Step 1: Install Certbot

First, make sure your system has certbot and python3-certbot-nginx packages installed. If not installed, execute the following command:

 sudo apt-get update
sudo apt-get install certbot python3-certbot-nginx

Step 2: Obtain and configure the certificate

Use certbot command to get the Let's Encrypt certificate and configure Nginx:

 sudo certbot --nginx

Follow the prompts to select the domain name to configure SSL, as well as other options such as automatic redirection.

Step 3: Automatic update of the test

certbot will automatically configure automatic update of certificates. You can test the automatic update function using the following command:

 sudo certbot renew --dry-run

Step 4: Set up scheduled tasks to automatically renew

In order to ensure that the certificate is continuously valid, it is recommended to set up scheduled tasks to automatically renew. For example, the following command will perform renewal every three months:

 0 0 1 */3 * certbot renew --dry-run
``` (Please note that it is recommended to remove the `--dry-run` parameter in the production environment to actually perform renewal)


**Step 5: Verify the certificate installation**

After updating the certificate, use the following command to verify that the certificate is installed correctly:

```bash
sudo nginx -t

This command will check the Nginx configuration file syntax and display the certificate information.

Through the above steps, you should be able to successfully update your Nginx SSL certificate on your Debian system. If you have any questions, please refer to the official Certbot documentation or seek community support.

The above is the detailed content of Nginx SSL Certificate Update Debian Tutorial. For more information, please follow other related articles on the PHP Chinese website!