Klo untuk sub domain dengan domain utama di server lain apakah lain caranya ?
Saya sudah coba dengan cara diatas, Cert failed.
Subdomain menggunakan KloxoMR, domain utama cPanel.
Berikut log nya
[Thu Aug 24 00:18:10 WIB 2017] Multi domain='DNS:www.sub.domain.com,DNS:cp.sub.domain.com,DNS:stats.sub.domain.com,DNS:webmail.sub.domain.com'
[Thu Aug 24 00:18:10 WIB 2017] Getting domain auth token for each domain
[Thu Aug 24 00:18:10 WIB 2017] Getting webroot for domain='sub.domain.com'
[Thu Aug 24 00:18:10 WIB 2017] _w='/var/run/letsencrypt'
[Thu Aug 24 00:18:10 WIB 2017] Getting new-authz for domain='sub.domain.com'
[Thu Aug 24 00:18:11 WIB 2017] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 6
[Thu Aug 24 00:18:11 WIB 2017] Can not connect to https://acme-v01.api.letsencrypt.org/directory to get nonce.
[Thu Aug 24 00:18:11 WIB 2017] Can not get domain new authz.
[Thu Aug 24 00:18:11 WIB 2017] Please add '--debug' or '--log' to check more details.
[Thu Aug 24 00:18:11 WIB 2017] See: https://github.com/Neilpang/acme.sh/wiki/How-to-debug-acme.sh