Install Let’s Encrypt in Nginx

Install Core

sudo snap install core; sudo snap refresh core

Remove old certbot

sudo apt-get remove certbot

Install Certbot

sudo snap install --classic certbot

Prepare the Certbot command

sudo ln -s /snap/bin/certbot /usr/bin/certbot

Install your certificates…

sudo certbot --nginx

Or, just get a certificate

sudo certbot certonly --nginx

Test automatic renewal

sudo certbot renew --dry-run

Second way to install :

sudo apt install certbot python3-certbot-nginx

Check SSL Certificate :

openssl s_client –showcerts –connect WebServerURL:PortNumber

Auto Renew Certbot by Cron :

43 6 * * * certbot renew --post-hook "systemctl reload nginx"