{"id":7740,"date":"2020-03-02T17:16:24","date_gmt":"2020-03-02T14:16:24","guid":{"rendered":"http:\/\/unihost.com\/help\/?p=7740"},"modified":"2023-10-06T15:48:35","modified_gmt":"2023-10-06T12:48:35","slug":"how-to-secure-nginx-with-lets-encrypt-on-centos-8","status":"publish","type":"post","link":"https:\/\/unihost.com\/help\/how-to-secure-nginx-with-lets-encrypt-on-centos-8\/","title":{"rendered":"How to secure Nginx with Let’s Encrypt on CentOS 8"},"content":{"rendered":"

\"Let's<\/p>\n

Let\u2019s Encrypt is a non-profit certificate authority run by Internet Security Research Group (ISRG) that provides X.509 certificates for Transport Layer Security (TLS) encryption at no charge.<\/span>\u00a0<\/span><\/p>\n

The certificate is valid for 90 days, during which renewal can take place at any time. The offer is accompanied by an automated process designed to overcome manual creation, validation, signing, installation, and renewal of certificates for secure websites. It launched on April 12, 2016.<\/span><\/p>\n

In this article, we will show you how you can install Let\u2019s Encrypt Certificate for Nginx web server<\/a> and configure the certificate to renew automatically on CentOS 8.<\/span><\/p>\n

Installing Nginx<\/span><\/h2>\n

Nginx \u00a0is available in the default CentOS repositories.<\/span><\/p>\n

# dnf install nginx<\/span><\/pre>\n
Enable and start the Nginx service.<\/span><\/p>\n
# systemctl enable nginx<\/span>
# systemctl start nginx<\/span><\/pre>\n
Creating Virtual Host<\/span><\/h2>\n
By default, Nginx is configured to load all configuration files that ends with .conf from the\/etc\/nginx\/conf.d\/<\/em> directory.<\/span><\/p>\n
# nano \/etc\/nginx\/conf.d\/example.com.conf<\/span>

server {<\/span>
     listen 80;<\/span>
     server_name example.com www.example.com;<\/span>
     return 301 https:\/\/$server_name$request_uri;<\/span>
}<\/span>
server {<\/span>
     listen 443 ssl http2;<\/span>
     server_name example.com www.example.com;<\/span>
     root \/home\/example.com;<\/span>
     index index.php index.html index.htm;<\/span>

     access_log \/var\/log\/nginx\/example.com.access.log;<\/span>
      error_log \/var\/log\/nginx\/example.com.error.log;<\/span>

location ~ \\.(php|phar)(\/.*)?$ {<\/span>
     fastcgi_split_path_info ^(.+\\.(?:php|phar))(\/.*)$;<\/span>

     fastcgi_intercept_errors on;<\/span>
     fastcgi_index index.php;<\/span>
     include fastcgi_params;<\/span>
     fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;<\/span>
     fastcgi_param PATH_INFO $fastcgi_path_info;<\/span>
     fastcgi_pass php-fpm;<\/span>
}<\/span><\/pre>\n
Install Certbot<\/span><\/h2>\n
Certbot is a free command-line tool that simplifies the process for obtaining and renewing Let\u2019s Encrypt SSL certificates from and auto-enabling HTTPS on your server.<\/span><\/p>\n
# wget https:\/\/dl.eff.org\/certbot-auto<\/span>
# mv certbot-auto \/usr\/local\/bin\/certbot-auto<\/span>
# chmod 0755 \/usr\/local\/bin\/certbot-auto<\/span><\/pre>\n
Install Lets Encrypt Certificate<\/span><\/h2>\n
# \/usr\/local\/bin\/certbot-auto --nginx<\/span>

Creating virtual environment...<\/span>
Installing Python packages...<\/span>
Installation succeeded.<\/span>
Saving debug log to \/var\/log\/letsencrypt\/letsencrypt.log<\/span>
Plugins selected: Authenticator nginx, Installer nginx<\/span>
Enter email address (used for urgent renewal and security notices) (Enter 'c' to<\/span>
cancel): admin@example.com<\/span><\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
Please read the Terms of Service at<\/span>
https:\/\/letsencrypt.org\/documents\/LE-SA-v1.2-November-15-2017.pdf. You must <\/span>agree in order to register with the ACME server at <\/span>https:\/\/acme-v02.api.letsencrypt.org\/directory <\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
(A)gree\/(C)ancel: a<\/span><\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
Would you be willing to share your email address with the Electronic Frontier<\/span>
Foundation, a founding partner of the Let's Encrypt project and the non-profit<\/span>
organization that develops Certbot? We'd like to send you email about our work<\/span>
encrypting the web, EFF news, campaigns, and ways to support digital freedom.<\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
(Y)es\/(N)o: y<\/span><\/span>
Which names would you like to activate HTTPS for?<\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
1: example.com<\/span>
2: www.example.com<\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
Select the appropriate numbers separated by commas and\/or spaces, or leave input<\/span>
blank to select all options shown (Enter 'c' to cancel): <\/span>
Obtaining a new certificate<\/span>
Performing the following challenges:<\/span>
http-01 challenge for example.com<\/span>
http-01 challenge for www.example.com<\/span>
Waiting for verification...<\/span>
Cleaning up challenges<\/span>
Deploying Certificate to VirtualHost \/etc\/nginx\/conf.d\/example.com.conf<\/span>
Deploying Certificate to VirtualHost \/etc\/nginx\/conf.d\/example.com.conf<\/span>

Please choose whether or not to redirect HTTP traffic to HTTPS, removing HTTP access.<\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
1: No redirect - Make no further changes to the webserver configuration.<\/span>
2: Redirect - Make all requests redirect to secure HTTPS access. Choose this for<\/span>
new sites, or if you're confident your site works on HTTPS. You can undo this<\/span>
change by editing your web server's configuration.<\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 1<\/span><\/span>
Future versions of Certbot will automatically configure the webserver so that all requests redirect to secure HTTPS access. You can control this behavior and disable this warning with the --redirect and --no-redirect flags.<\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
Congratulations! You have successfully enabled https:\/\/example.com and<\/span>
https:\/\/www.example.com<\/span>
You should test your configuration at:<\/span>
https:\/\/www.ssllabs.com\/ssltest\/analyze.html?d=example.com<\/span>
https:\/\/www.ssllabs.com\/ssltest\/analyze.html?d=www.example.com<\/span>
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -<\/span>
IMPORTANT NOTES:<\/span>
 - Congratulations! Your certificate and chain have been saved at:<\/span>
 \u00a0\u00a0\/etc\/letsencrypt\/live\/example.com\/fullchain.pem<\/span>
 \u00a0\u00a0Your key file has been saved at:<\/span>
 \u00a0\u00a0\/etc\/letsencrypt\/live\/example.com\/privkey.pem<\/span>
 \u00a0\u00a0Your cert will expire on 2020-05-27. To obtain a new or tweaked<\/span>
 \u00a0\u00a0version of this certificate in the future, simply run certbot-auto<\/span>
 \u00a0\u00a0again with the \"certonly\" option. To non-interactively renew *all*<\/span>
 \u00a0\u00a0of your certificates, run \"certbot-auto renew\"<\/span>
 - Your account credentials have been saved in your Certbot<\/span>
 \u00a0\u00a0configuration directory at \/etc\/letsencrypt. You should make a<\/span>
 \u00a0\u00a0secure backup of this folder now. This configuration directory will<\/span>
 \u00a0\u00a0also contain certificates and private keys obtained by Certbot so<\/span>
 \u00a0\u00a0making regular backups of this folder is ideal.<\/span>
 - If you like Certbot, please consider supporting our work by:<\/span>
 \u00a0\u00a0Donating to ISRG \/ Let's Encrypt: \u00a0 https:\/\/letsencrypt.org\/donate<\/span>
 \u00a0\u00a0Donating to EFF:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 https:\/\/eff.org\/donate-le<\/span>
 - We were unable to subscribe you the EFF mailing list because your<\/span>
 \u00a0\u00a0e-mail address appears to be invalid. You can try again later by<\/span>
 \u00a0\u00a0visiting https:\/\/act.eff.org.<\/span><\/pre>\n
Test Let\u2019s Encrypt SSL Certificate<\/span><\/h2>\n
Test your SSL certificate for problems and its security ratings by going to the below URL.\u00a0<\/span>
https:\/\/www.ssllabs.com\/ssltest<\/a><\/span>\"Test<\/span><\/p>\n
https:\/\/www.sslshopper.com\/ssl-checker.html<\/span><\/a><\/p>\n
\"Renew<\/span>Renew Let\u2019s Encrypt Certificate<\/span><\/h2>\n
Let\u2019s Encrypt certificate is valid for 90 days from the date of issuance, and it needs to be renewed before it expires.<\/span><\/p>\n
Run the following command to create a new cronjob which will renew the certificate and restart Nginx.<\/span><\/p>\n
# echo \"0 0,12 * * * root python3 -c 'import random; import time; time.sleep(random.random() * 3600)' && \/usr\/local\/bin\/certbot-auto -q renew --renew-hook \\\"systemctl reload nginx\\\"\" | sudo tee -a \/etc\/crontab > \/dev\/null<\/span><\/pre>\n
You can also simulate the certificate renewal process with the below command to ensure the renewal goes smooth.<\/span><\/p>\n
# \/usr\/local\/bin\/certbot-auto renew --dry-run<\/span><\/pre>\n
In this guide, we demonstrated how you can use certbot to install and configure the Let\u2019s Encrypt certificate on Nginx webserver running on a CentOS 8 system.<\/span><\/p>\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Let\u2019s Encrypt is a non-profit certificate authority run by Internet Security Research Group (ISRG) that provides X.509 certificates for Transport Layer Security (TLS) encryption at no charge.\u00a0<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[158],"tags":[58,548,95],"class_list":["post-7740","post","type-post","status-publish","format-standard","hentry","category-dedicated-servers","tag-centos","tag-lets-encrypt","tag-nginx"],"yoast_head":"\nHow to secure Nginx with Let's Encrypt on CentOS 8 - Unihost.FAQ<\/title>\n<meta name=\"description\" content=\"\u2714 Installing Nginx \u2714 Creating Virtual Host \u2714 Install Certbot \u2714 Install Lets Encrypt Certificate \u2714 Test Let\u2019s Encrypt SSL Certificate\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/unihost.com\/help\/how-to-secure-nginx-with-lets-encrypt-on-centos-8\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to secure Nginx with Let's Encrypt on CentOS 8 - Unihost.FAQ\" \/>\n<meta property=\"og:description\" content=\"\u2714 Installing Nginx \u2714 Creating Virtual Host \u2714 Install Certbot \u2714 Install Lets Encrypt Certificate \u2714 Test Let\u2019s Encrypt SSL Certificate\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unihost.com\/help\/how-to-secure-nginx-with-lets-encrypt-on-centos-8\/\" \/>\n<meta property=\"og:site_name\" content=\"Unihost.FAQ\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/unihost\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-03-02T14:16:24+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-06T12:48:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/unihost.com\/help\/wp-content\/uploads\/le-logo-wide.png\" \/>\n<meta name=\"author\" content=\"Unihost Support\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@unihost\" \/>\n<meta name=\"twitter:site\" content=\"@unihost\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Unihost Support\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/unihost.com\/help\/how-to-secure-nginx-with-lets-encrypt-on-centos-8\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/unihost.com\/help\/how-to-secure-nginx-with-lets-encrypt-on-centos-8\/\"},\"author\":{\"name\":\"Unihost Support\",\"@id\":\"https:\/\/unihost.com\/help\/#\/schema\/person\/bb5ae95f38577c920e6a7507888b715a\"},\"headline\":\"How to secure Nginx with Let’s Encrypt on CentOS 8\",\"datePublished\":\"2020-03-02T14:16:24+00:00\",\"dateModified\":\"2023-10-06T12:48:35+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/unihost.com\/help\/how-to-secure-nginx-with-lets-encrypt-on-centos-8\/\"},\"wordCount\":302,\"publisher\":{\"@id\":\"https:\/\/unihost.com\/help\/#organization\"},\"image\":{\"@id\":\"https:\/\/unihost.com\/help\/how-to-secure-nginx-with-lets-encrypt-on-centos-8\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/unihost.com\/help\/wp-content\/uploads\/le-logo-wide.png\",\"keywords\":[\"CentOS\",\"let's encrypt\",\"Nginx\"],\"articleSection\":[\"02. 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