从nslookup获取反向查找答案,但不是从挖掘

所以,如果我使用挖进行反向查找,我会得到:

$ dig 71.74.56.122 ; <<>> DiG 9.6.0-APPLE-P2 <<>> 71.74.56.122 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41277 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;71.74.56.122. IN A ;; ANSWER SECTION: 71.74.56.122. 655360 IN A 71.74.56.122 

使用nslookup,我得到:

 $ nslookup 71.74.56.122 Server: 10.0.1.1 Address: 10.0.1.1#53 Non-authoritative answer: 122.56.74.71.in-addr.arpa name = hrndva-omtalb.mail.rr.com. 

谁能告诉我为什么挖拒绝做反向查找?

dig希望在IP上反向查找'-x'标志。

或者,您可以使用完整的表格,“挖PTR 122.56.74.71.in-addr.arpa”。