certbot certonly \
--server https://acme-v02.api.letsencrypt.org/directory \
--manual \
--preferred-challenges dns \
-d 'xiehang.com,*.xiehang.com'
Nov 112018
Nov 072018
route53 is now hosting all my domains, though registrant is still godaddy, will change that part next August.
Apr 242012
While I was migrating my web sites from AWS US east to US west, it’s interesting to see behavior of those spiders, good and bad.
I set TTL of my domain to 30 minutes, and after 12 hours some spiders are still NOT going to my new sites: Continue reading »