[help]how to configure ecs subnet for bind-9.18-21

dear admin: now, i use bind-9.18-21, i want to use ecs client subnet function; but i don't know how to configure it, and i don't get method from google please give me some example,or document , or google links to learn about it ; thanks! Yang 395096...@qq.com-- Visit

BIND | Cname chain resolution using forward ( CNAME returned but no use A) (#3995)

i am very very sorry , the zone info of first mail -zone "bd.baidubce.com." i write wrong; the wright info iszone "x.bd.bcebos.com." please just see this mail, when i use bind-9.11 for my interdns deviceip is 10.1.1.1,i config zone "x.bd.bcebos.com." in { type forward ; forward only;

BIND | Cname chain resolution using forward ( CNAME returned but no use A) (#3995)

hibind admin, when i use bind-9.11 for my interdns?? deviceip is 10.1.1.1, i config zone "bd.baidubce.com." in{ type forward ; forward only; forwarders { 10.10.10.10; }; }; 1??when i dig @10.1.1.1 x.bd.bcebos.com. 2??10.10.10.10 return record "CNAME bd.bcebos.com., A 100.67.96.26, A