[DO NOT REPLY ALL (unless you're subscribed to BOTH lists] Temporarily added/adding these A records for letsencrypt.org validation (letsencrypt.org still fails to validate against IPv6 only): ipv6.balug.org. 14400 IN A 208.97.176.67 www.ipv6.balug.org. 14400 IN A 208.97.176.67 ipv6.sf-lug.com. 86400 IN A 198.144.194.238 www.ipv6.sf-lug.com. 86400 IN A 198.144.194.238 ipv6.sf-lug.info. 7200 IN A 198.144.194.238 www.ipv6.sf-lug.info. 7200 IN A 198.144.194.238 ipv6.sf-lug.org. 7200 IN A 198.144.194.238 www.ipv6.sf-lug.org. 7200 IN A 198.144.194.238