If you try to install Let’s Encrypt certificate via Issabel web interface and it is failed you can installed from ssh.
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cd \etc letsencrypt certonly --standalone -d sbz-tel.freeextra.com |
If you get the message “Problem binding to port 80: Could not bind to IPv4 or IPv6.” try
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service httpd stop cd /etc letsencrypt certonly --standalone -d yourdomain.com service httpd start |
After the certification creation via ssh, you can renew it easily via web interface.