Just swap in your domain name there the example URLs are found. Step 2: Retrieve new SSL Certificate from Let’s Encrypt. Restart the Nginx 6. pem) to the /etc/ssl/private/ folder, and the fullchain. Complete the order for SSL certificate issuance and submit all relevant documents. cer extension files. Enable SSL Module: Enable the SSL module in Apache by running the appropriate command. Jun 27, 2019 · Before you set up SSL, I guess you already have two files which is SSL certificate and SSL certificate Key. Buat folder tempat SSL; Berikutnya kamu perlu membuat sebuah folder, yang berfungsi untuk menaruh certificate SSL domain kamu. You will receive the required documents upon obtaining a SSL Apr 26, 2023 · This guide will go through how you can install an configure an SSL Certificate on Nginx. Jul 20, 2020 · This tutorial explains how to install a free Let’s Encrypt SSL certificate on Ubuntu 20. 04. PEM file with the correct contents, and the Certificate Key file contains To Install SSL and Intermediate Certificates. 9 Test it. Method 2: Check from the SSL Shopper page. crt You'll be asked for some info about your organization. sudo apt-get install certbot python-certbot-nginx. Run Certbot: Now that Certbot is installed, we can proceed to obtain SSL certificates for our Nginx setup: sudo certbot --nginx Jan 14, 2021 · Implementation guide. Step 2: Install Let’s Encrypt SSL. Note: If you have not the received the 'ca-bundle' file in the ZIP that we sent you, you can Jul 9, 2020 · Step 1: Install Certbot. Then you can use certbot to automatically configure SSL on your web server. pem, then create the key file: openssl pkcs12 -nocerts -nodes -in server-cert-key Apr 21, 2016 · Note: A self-signed certificate will encrypt communication between your server and any clients. Mar 11, 2024 · To install a certificate in Nginx, a `Certificate Bundle` must be created. Followed by extracting the private key with the following command. 2. A good choice is to put the private key (. Nov 30, 2021 · The nginx ssl_ciphers property may be specified to limit the available ciphers. user973254. Once you have everything on the initial checklist, you can follow the steps below that describe how to install Sectigo SSL to Oct 27, 2017 · Step 1 — Installing Certbot. Login to the Cloud VPS Server Using SSH. However, the Certbot developers maintain a Ubuntu software repository with up-to-date TLS (Transport Layer Security) and its predecessor SSL (Secure Sockets Layer) are web protocols used to wrap normal traffic in a protected, encrypted wrapper. 1. Note that there are several Nginx Ingress Controllers; the Kubernetes community maintains the one used in this guide and Nginx Inc. crt – specifies the full path of the certificate. Step 4: Add TXT records to your domain’s DNS zone. This page shows how to use Let’s Encrypt to install certificate for Nginx web server get SSL labs A+ score on a CentOS 8. When generating the SSL Certificate for Nginx using the certbot Let’s Encrypt client, the client will automatically obtain and install a new SSL certificate that is valid for the domains provided as parameters. Restart Nginx after installing your SSL certificate. 5 Obtain a certificate for domain. ก่อนดำเนินการ. yml) that encompasses images for both Nginx and certbot. Copy your SSL certificate file and the certificate bundle file to your Nginx server. io. I would like configure SSL for nginx using certificates . After entering the above command, provide the extra details for the questions prompted, like in the below image. Certbot is in very active development, so the Certbot packages provided by Ubuntu tend to be outdated. Feb 27, 2024 · Server Access: Confirm that your web server has the proper access levels to update the Nginx configuration files safely and install the SSL certificate. El primer paso para utilizar Let’s Encrypt para obtener un certificado SSL es instalar el software Certbot en su servidor. This tutorial uses Certbot to obtain and install an SSL certificate for Nginx on Ubuntu 22. Apr 1, 2022 · Step 1 — Create the SSL Certificate. pem > fullchain. Setup SSL On Nginx. However, because it is not signed by any of the trusted Certificate Authorities (CA) included with web browsers, users cannot use the certificate to validate the identity of your server automatically. In order to install the SSL certificate on your NGINX web server, you need to have an NGINX installed on ubuntu 21. Configure Nginx configuration file with the SSL/TLS certificate and private key. pem; ssl_certificate_key privkey. This article will use a separate Nginx virtual host file instead of the default configuration file. conf). Dec 20, 2016 · Step 1: Create the SSL Certificate. A CSR is required to order an SSL Certificate. The Nginx plugin handles Nginx reconfiguration and config reloading as needed. III. The exact configuration file you edit depends on your Langkah 2, Install SSL di Nginx. certbot is the commandline tool for Let’s encript. Jun 12, 2023 · The Certbot software is now ready to use. sh” you will have to provide an email address to create an account that will also be used to send certificate renewal notifications. Apr 9, 2023 · Create a VM and install the NGINX web server. STEP 2. During the installation of “acme. Then save the file and exit the editor. Step 1: Combine all the certificates To Install SSL and Intermediate Certificates. For convenience, we put the e-mail address in a variable “ACME_EMAIL”. You must type the following to get the TSL/SSL certificate. Apr 19, 2024 · Let’s Encrypt is a free, automated, and open certificate authority for your website, email server and more. key – specifies the full path of the RSA key. 6 Configure Nginx. Let’s Encrypt is the best way to easily Sep 26, 2018 · This article will go into detail on how to install certificates on Nginx Webserver. Diasumsikan server vps kamu sudah terinstall nginx. The exact configuration file you edit depends on your Apr 25, 2023 · A guide for installing an SSL/TLS Certificate onto your NGINX Web Server. 8 Firewall configuration. crt your_domain. pfx file that can be used to install SSL on NGINX. You are about to be asked to enter information that will be incorporated. Now, simply pass it into Nginx: ssl_certificate fullchain. If you have already generated a CSR (Certificate Signing Request) and a private key, you can copy your CSR content to generate your Cloudflare Origin certificate, otherwise you can let Cloudflare generate a private key for you and click on next Dec 9, 2022 · To adjust these settings, you want to add the Nginx HTTPS profile that allows for TLS/SSL encrypted traffic via port 443. Step 4: Edit the default VirtualHost file. key -out yourdomain. Copy Private key ที่ Gen ได้ Save as private. Feb 3, 2022 · I have . Sample outputs: Enter pass phrase for self-ssl. Next simpllly run certbot with sudo. . The certificates have to be in a correct order: your signed SSL certificate first, afterwards the intermediate. Working with Python 3 and the python3-certbot-nginx package Mar 18, 2024 · On CentOS/RHEL: sudo yum install certbot python3-certbot-nginx. crt file to hold Cloudflare’s certificate: sudo nano /etc/ssl/cloudflare. The exact configuration file you edit depends on your Apr 8, 2024 · This will allow you to serve requests securely and prevent outside parties from reading your traffic. Step 1 — Creating the SSL Certificate. It is used to encrypt content sent to clients. To configure Nginx to use the SSL certificate, you need to modify the Nginx configuration file. Files can have the . TLS/SSL works by using a combination of a public certificate and a private key. Before you start, please make May 1, 2023 · Order an SSL certificate from a Certificate Authority. crt domain_com. Set up a website on Nginx. You can identify these files by looking at the file extension, SSL Certificate : <name>. Generate the Certificate Signing Request on the application server. Step 1: Complete the prerequisites. com; # Verify Mar 15, 2022 · Note: A self-signed certificate will encrypt communication between your server and any clients. Please refer this article: Generate Free Let's Encrypt SSL Certificate. Mar 23, 2022 · SSL stands for Secure Sockets Layer and an SSL certificate is a digital certificate that enables encrypted connection and authentication of the website identity. pem or . Save your server certificate file and your intermediate certificates. You need to link the two certificates (or “Concatenate” them) into a single file by entering the command below: cat your_domain_name. pem; See Nginx manual for details. I googled for certain examples but found most of them used either csr and crt files. Prerequisites An Amazon EC2 instance If you don't have SSL Certificates, you can generate SSL for free through SslForWeb. Certbot is now available as a snap package for Debian operating system. crt. 04, running Nginx as a web server. In this tutorial, we’ll show you how to Dec 20, 2023 · Install an SSL Certificate on NGINX. 04 and set up automatic renewal. Oct 13, 2023 · Enable HTTPS support with NGINX TIP: To quickly get started with HTTPS and SSL, follow these instructions to auto-configure a Let’s Encrypt SSL certificate. ca-bundle > ssl-bundle. Jan 11, 2021 · In this article you will learn how to install an SSL certificate on an NGINX web server and set up an HTTPS redirect. Now update your Nginx configuration to use TLS Authenticated Origin Pulls. Install the SSL certificate on Nginx and configure the HTTP redirection Sep 1, 2022 · Step 1 — Installing Certbot. Feb 15, 2023 · Step 2: Configure Nginx to use the SSL certificate. Provide the CSR generated earlier and complete any necessary verification steps. Jul 15, 2019 · Nginx installed on your server, following How to Install Nginx on Debian 10. Apr 28, 2017 · The SSL certificate has 2 parts main parts: the certificate itself and the public key. /YOUR-PFX-FILE. The exact configuration file you edit depends on your Apr 29, 2022 · 1. NOTE: To obtain only the certificates and configure the SSL manually, append certonly after certbot and before --apache or --nginx. Instalar Certbot y su complemento de Nginx con apt: sudo apt install certbot python3-certbot-nginx. pem to the /etc/ssl/certs/. To create your Certificate Signing Request (CSR) you will need to connect to your server using SSH under a privileged user How To Secure Nginx with Let's Encrypt. crt and private. Make sure the OpenSSL client software needed for a secure website is in place with: # yum install mod_ssl Apr 30, 2015 · This step concatenates the intermediate certificate with your signed SSL certificate. Sep 29, 2021 · Install your SSL certificate After SSL certificate is validated and issued, you can install it on the Nginx server where the CSR was generated and configure the server to use it. For example, in Ubuntu, you can use the a2enmod command. 3 Create acme-challenge directory. This tutorial uses the CLI within the Azure Cloud Shell, which is constantly updated to the latest version. 1. Copy the existing server module (the non-secure one) and paste it below the original Sep 4, 2023 · Here we are using certbot to generate the self-signed SSL certificates. Download, concatenate the certificates to a single one, and upload to the server. crt >> mydomain-2015. We assume you already have a working nginx virtual host for your Sep 1, 2022 · Step 1 — Installing the Certbot Let’s Encrypt Client. ca-bundle file) Once you’ve got them from your CA, continue with the configuration. Jan 15, 2018 · Here are the steps which you need to follow in order to install free ssl for nginx web server on ubuntu. #1. sh Let’s Encrypt client. Then, save the domain name as data/nginx/app. crt to mydomain-2015. Step 2: Edit NGINX Configuration File. Oct 16, 2021 · However, if it doesn't contain a full chain, you have to concatenate it yourself (it seems this is your case): cat server. crt >> bundle. Add the certificate to the file. Install Nginx on Linux. The Certbot client handles certificate issuance and installation with no downtime. Now copy files to your server. Certbot is now ready to use, but in order for it to automatically configure SSL for Nginx, we need วิธีติดตั้ง SSL Certificate ให้กับ Nginx เพื่อทำ HTTPS:// , How to install ssl on nginx server สำหรับ Dec 27, 2023 · Before installing and configuring SSL certificates, you‘ll need: Nginx installed on your server – If not, check this Nginx install guide. A restart of your Nginx web server is necessary to pick up the new SSL configuration. However, the Certbot developers maintain a Ubuntu software repository with up-to-date Nov 24, 2017 · Purchasing an SSL certificate requires creating a Certificate Signing Request (CSR) which you can do on your host using: openssl req -new -newkey rsa:2048 -nodes -keyout yourdomain. We’ll start by extracting the CRT file using openssl with the following command. pem chain. Open the configuration file for your domain: Apr 19, 2020 · Install certbot. Alternatively, you may choose to use a self-signed SSL certificate that can be obtained from Let’s Encrypt, a certificate authority that installs free TLS/SSL certificates and enables encrypted HTTPS on web servers. Prerequisites # Before you proceed, make sure that you have met the following prerequisites: To Install SSL and Intermediate Certificates. The next step is to obtain the SSL certificate. สิ่งที่ต้องเตรียมก่อนติดตั้ง SSL Certificate บน Nginx. pfx -clcerts -nokeys -out domain. How to install Let’s Encrypt SSL with Certbot on Nginx. Apr 19, 2024 · 2 Installing acme. 7 Install certificate. Konfigurasi Nginx SSL. The issue looks like you've put your SSL private key in the ssl_client_certificate attribute and not put your real SSL certificate in your configuration. Step 6: Complete the Let’s Encrypt SSL certificate request. You need to create an SSL-Bundle. cer is your public key for ssl_certificate and *. Step 1: Install Cerbot Let’s Encrypt Client. The first step to securing Nginx with Let’s Encrypt is to install Certbot. Submit the CSR to the CA and perform the Domain Control validation. pem file in an email when your certificate was issued. ส่ง CSR files ให้ ตัวแทนจำหน่าย SSL . Aug 27, 2018 · At first, go into your Cloudflare dashboard and in the section Crypto, click on create a certificate. ca-bundle >> ssl-bundle. Jul 11, 2019 · Step 1 — Installing Certbot. Selanjutnya akses vps kamu secara remote melalui ssh. maintains kubernetes-ingress. เตรียมไฟล์ Private Key ที่ได้จากการ Nov 29, 2023 · In this guide, I’ll walk through the process of obtaining and installing SSL certificates for your domain using Certbot and Nginx on an Amazon EC2 instance. -out /etc/nginx/ssl-certs/nginx. crt Intermediate. Steps for SSL installation on NGINX: Here is a step-by-step process for installing SSL on Nginx: Step 1: Obtain SSL Certificate. csr) 2. Certbot is an open-source software tool for automatically enabling HTTPS using Let’s Encrypt certificates. Can any one guide me on how to configure ssl using the . Nov 27, 2021 · Jadi, pada tutorial kali ini, kami akan menjelaskan bagaimana cara install SSL Self-Signed di web server Nginx. To accomplish this, each certificate (SSL Cert, Intermediate Cert, and Root Cert) must be in the PEM format. com’. The first step in installing a wildcard SSL certificate on Nginix is generating the certificate signing request (CSR). openssl req -new -newkey rsa:2048 Oct 31, 2021 · Install Let’s Encrypt SSL Certificate For Nginx Install Certbot. Installing an SSL digital certificate for Nginx won’t bust the brain. Iam new to Nginx and security stuff. sh commands. cer file and asked to configure SSL in Nginx. Step 5: Confirm that the TXT records have propagated. The SSL key is kept secret on the server. Edit your Nginx configuration to reference these files. Gunakan panduan cara menggunakan ssh . Here’s how to install PositiveSSL on Nginx. Step 2: Obtain TSL/SSL Certificate The next step is to obtain the TLS/SSL certificate from the Let’s Encrypt authority using the Certbot software. Your Nginx SSL configuration should contain the following lines instead: Make sure SSL Certificate corresponds to the . cat cert. Step 2: Install Certbot on your Lightsail instance. For NGINX: sudo certbot --nginx. 04 LTS. pem -x509 -days 365 -out certificate. key Step 01: Validate Your certificate SSL Certificate and SSL Certificate Key. com www. crt extension. Step 2: Check the OpenSSL client software. Step 3: Download and Upload Certificate Files to Nginx. com; Root or sudo access on your Nginx server ; A valid SSL certificate issued to your domain – We‘ll cover how to get one below. To open the Cloud Shell, select Try it from the top of any code block. crt file by combining the server certificate (SSL), root certificate, and intermediate certificate. We’ll also show how to configure Nginx to use the SSL certificate and enable HTTP/2. Certbot estará listo para utilizarse, pero para que configure SSL automáticamente para Nginx Nov 14, 2018 · -keyout /etc/nginx/ssl-certs/nginx. It works directly with the free Let’s Encrypt certificate authority to request (or renew) a certificate, prove ownership Sep 3, 2022 · This Raspberry Pi SSL certificate project will walk you through the steps to installing and setting up the Let’s Encrypt Certbot client on the Pi. Step 1: Log into the server as root using SSH. Simak panduan lengkap di bawah ini! Daftar isi tutup. key. Next, you can use this basic configuration to point incoming requests to HTTPS. May 8, 2024 · Learn the steps to secure your Nginx server with an SSL certificate, which provides encryption and authentication for secure communication. crt, ca_bundle. Prerequisites: Concatenate the CAbundle and the certificate file which we sent you using the following command. The first step to using Let’s Encrypt to obtain an SSL certificate is to install the certbot software on your server. Mar 29, 2024 · To install Let’s Encrypt certificates, you need to create A records pointing your domain to your Droplet’s IP address. Certbot dramatically reduces the effort (and cost) of securing your websites with HTTPS. If you don't have NGINX installed on your server you can follow this guide - How to install NGINX on Ubuntu 21. crt file) The root and intermediate certificates (. Jul 12, 2023 · First, you need to kick things off with a config file (docker-compose. Installing Free Let’s Encrypt SSL certificate on Ubuntu 20. We use sudo because cert bot will download the HTTPS SSL certificate and modify Nginx config file automatically. The SSL key is kept secret on the server and is used to encrypt content sent to clients. pem. Mar 31, 2016 · Step 1 — Installing Certbot. You should already have a key file on the server from when you generated your certificate request. Now you can request an SSL certificate for your domain. p12 -out server-ca-cert-bundle. answered Apr 29, 2022 at 14:35. conf. Open each certificate in a plain text editor. This technology enables server and client to communicate securely, and the certificate system allows users to verify the identity of websites. After the Certificate is uploaded, you need to modify your NGINX configuration file (by default it is called nginx. pfx is your private + public key, you need private key for ssl_certificate_key directive, first you need to convert both of your files to PEM format to be able to use with nginx. key or . Edit your virtual host file. Copy CSR ที่ Gen ได้ Save as yourdomain. Dec 2, 2020 · Step 3 — Obtaining a Certificate. 04 with Certbot is a straightforward Jul 18, 2018 · I'm trying to add SSL certs (generated with LetsEncrypt) to my nginx. Install Certbot and its Nginx plugin with apt: sudo apt install certbot python3-certbot-nginx. In this blog post, we will use Certbot to obtain a free SSL certificate for Nginx. 4 Create dhparams. Step 1: Generating a CSR and Private Key. To do so, start by opening a terminal window and updating the local repository: sudo apt update. Place the created file into the directory with the SSL certificates on your NGINX server. We will Install python-certbot-nginx to get it. Edit your Nginx virtual host file. p12 file from third party service from which I want to create certificates and add them to NGINX. This tutorial will guide you through securing your Nginx web server using Let’s Encrypt and Certbot, the Let’s Encrypt client Install and activate SSL for your websites and have Certbot do all the configurations by executing the following command for Apache: sudo certbot --apache. Find out the types of SSL certificates, the prerequisites, and the commands to install the certificate on Nginx. Method 1: Check from the browser. If you are using windows, download putty and login with root user and password. csr (เช่น siamecohost. Ownership of a domain name like example. Nov 19, 2013 · Step #4: Create a certificate signing request (CSR) To generate a CSR, enter: # openssl req -new -key self-ssl. a) By adding a new configuration file for the website you can make sure that there are no issues with the separate configuration file. csr. key) to your NGINX server in a directory of your choice. You should've received a your_domain_name. In order to set up a Comodo Positive SSL Certificate on Nginx, you need to make sure that you have Nginx fully installed on your system. What I do is to move the p12 file in the server and then create the pem file: openssl pkcs12 -nokeys -in server-cert-key-bundle. Now you have to generate your private key and CSR (Certificate Signing Request). Summary. Mar 26, 2023 · Switch to the directory where we saved “acme. However, because it is not signed by any of the trusted certificate authorities included with web browsers, users cannot use the certificate to validate the identity of your server automatically. Step 3: Request a Let’s Encrypt SSL wildcard certificate. cat intermediate. Nov 9, 2020 · To do this, place the contents of the chain file at the end of the public key file. Step 1 - Login to your server via SSH Jun 11, 2020 · Paso 1: Instalar Certbot. The location of the configuration file may vary depending on your system, but it is typically located at /etc/nginx/nginx. Open Notepad and Name Apr 11, 2023 · Submit the CSR to a Certificate Authority and download the certificate with its private key. pem and creates the addressed pem bundle. With those basics covered, you Jul 9, 2019 · Run this command: cat your_domain. cd /usr/local/src/acme. we are going to use Alibaba ECS Instance for this guide. openssl pkcs12 -in . To complete the SSL installation, you will need the following certificate files: Your primary certificate (. First and foremost, you will need to upload the certificate files above (certificate. Create SSL Certificate and Key for Nginx. Sep 13, 2022 · Step #2 Combine SSL Certificate Files. If you received an output of Rule added, then you successfully added this profile to your list. The nginx is built from a docker-compose file where I create a volume from my host to the container so the containers can acces Jun 19, 2023 · Obtain SSL Certificate: Follow your chosen CA’s instructions to obtain an SSL certificate for your Apache server. Jan 11, 2022 · Then create the file /etc/ssl/cloudflare. Before You Start. Now open the สำหรับเว็บไซต์ที่ใช้งานผ่าน Nginx service จะสามารถติดตั้ง SSL certificate ได้ด้วยวิธีการต่อไปนี้. key: Type-Your-PassPhrase-Here. Enable access to the EPEL repository on your server by typing: Once the repository has been To install the SSL certificate on Nginx, you need to show the server which files to use, either by a) creating a new configuration file, or b) editing the existing one. Nov 30, 2020 · Upload Certificate Files. To make all of the relevant files easy to access, we should create a directory for each virtual host’s SSL certificate. To do this, run the following command: sudo ufw allow 'Nginx HTTPS'. To Install SSL and Intermediate Certificates. Open the configuration file in a text editor and add the following Dec 5, 2023 · Install SSL/TLS Certificate on Nginx Web Server! Step 1. Let’s Encrypt is a Certificate Authority (CA) that provides a straightforward way to obtain and install free TLS/SSL certificates, enabling encrypted HTTPS on web servers. sh. This Certbot client allows the user to grab an SSL certificate from Let’s Encrypt by either utilizing your web server or running a temporary server. How to Install an Nginx SSL Certificate: A Step by Step Guide. pem file. key -out self-ssl. Create your CSR and Private Key, order your SSL and validate your domain. 1 of the Kubernetes-maintained Nginx Ingress Controller. This command adds the content of intermediate. Inject the certificate into the VM and configure NGINX with a TLS binding. Cara Install SSL di Nginx Ubuntu 20. A Written Feb 25, 2021 · This guide provides instructions on using the open source Certbot utility with the NGINX web server on Ubuntu 20. If you have a site running on Nginx, you can skip this section. STEP 1. The SSL certificate is publicly shared with anyone requesting the content. Create a new document in a plain text editor. Jul 21, 2015 · How to install an SSL certificate for the Nginx server on CentOS and Fedora. key -out /etc/ssl/certs/nginx. Mar 11, 2022 · Step 2 — Setting Up the Kubernetes Nginx Ingress Controller. In this section, we will be installing Nginx webserver on Linux Mint and creating a website ‘exampledomain. openssl req -newkey rsa:2048 -nodes -keyout key. 3. By default, nginx ssl_ciphers property is set to ssl_ciphers HIGH:!aNULL:!MD5. In this step, we’ll roll out v1. Next, open your virtual host configuration file and add the following lines to a server block declaration listening on port 443. I was given a . Mar 22, 2018 · I’ll try to explain the easiest way to use a . 6. sh”. Phase 1 – Creating a CSR on Nginx. NOTE: The steps below assume that you are using a custom domain name and that you have already configured the custom domain name to point to your cloud server. Membuat Self-Signed SSL Certificate. 04 LTS and 18. Copy and paste the contents of each certificate into the new file. You’ll need this before you can get your SSL certificate issued. crt bundle. To utilize this plugin, enter the following command: sudo certbot --nginx -d demo. The exact configuration file you edit depends on your Jul 15, 2020 · sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/ssl/private/nginx. When you purchase your certificate from your vendor, you’ll provide the text content from your CSR file. Link your files. The first step to using Let’s Encrypt to obtain an SSL certificate is to install the Certbot software on your server. 10 acme. Certbot offers a range of plugins for acquiring SSL certificates. example. *. crt SSL Certificate Key : <name>. Step 2: Order and Configure the SSL Certificate. Installing the python3-certbot-nginx package from the Debian repositories will allow us to install and use Cerbot’s nginx plugin. In addition to pointing a domain to your server IP, you will also need to install the Certbot ACME client on your system. cat domain_com. Because this is self-signed, the only one that really matters is "Common Name," which should be set to your domain name or your server's IP address. Currently, the best way to install this is through the EPEL repository. tekspace. Point your Domain name to the IP address of Cloud VPS. Step 3: Check the certificate after installation. Step 3: Add a SSL certificate to your HTTP to get HTTPS (optional) # Install Certbot sudo add-apt-repository ppa:certbot/certbot # press enter sudo apt-get update sudo apt-get install python-certbot-nginx # Modify nginx config file sudo nano /etc/nginx/sites-available/default # Find the existing server_name line and replace the underscore, _ server_name example. ea yl hi hm sg az zz hf ki qt