#fix for curl error (get for https://acme-staging.api.letsencrypt.org/directory; curl returned with 6) like
/usr/bin/curl https://acme-v01.api.letsencrypt.org/directory -s 2>&1 > /dev/null
/usr/bin/curl http://cert.int-x3.letsencrypt.org/ -s 2>&1 > /dev/null
/usr/bin/curl https://acme-staging.api.letsencrypt.org/directory -s 2>&1 > /dev/null

