Step by Step How to issue Letsencrypt wildcard certificate
Install Let's Encrypt Client Before we started we should update the repo then install git : For (centos 6 & 7) yum update -y yum install git -y For (ubuntu 14&16) sudo apt-get update -y sudo apt-get install git -y Then we need to install certbot-auto client : For (CentOS 6 & 7 ubuntu 14&16) sudo git clone https://github.com/certbot/certbot cd certbot ./certbot-auto -h Request SSL Certificate After we installed the let's encrypt client now we well issue wildcard certificate for our domain : ./certbot-auto certonly --agree-tos --manual --preferred-challenges dns --server https://acme-v02.api.letsencrypt.org/directory -d examile.com -d "*.examile.com" --email your@email.com When run this script the terminal well ask you to add TXT DNS recored to your domain please follow the script its clear to what you should do. Or if you don't know how to add txt record just search in goog...