ssl for  ubuntu

https://certbot.eff.org/instructions?ws=apache&os=ubuntufocal

certbot --apache

Dig site AAAA  ,,,for ip6

certbot renew

ssh id@ipOrSite

sftp://id@site

linux ipv6 show:
ifconfig

Find ipv6:
ip -6 addr

ipv6  list:
/sbin/ifconfig | grep inet6