nslookup的时候,non-authoritiative是什么意思?
(base) aircrafts-MacBook-Pro:~ ldl$ nslookup baidu.com
Server: 114.114.114.114
Address: 114.114.114.114#53
Non-authoritative answer:
Name: baidu.com
Address: 220.181.38.251
Name: baidu.com
Address: 220.181.38.148
就是字面意思,未经证实的应答。
一般是从本地 DNS 缓存(本地 DNS 缓存Local DNS Cache)里查询到的,没真正逐级向上从域名服务器(Nameserver)查询。