[원문: http://tools.kali.org/information-gathering/dnstracer]
정의
dnstracer determines where a given Domain Name Server (DNS) gets its information from for a given hostname, and follows the chain of DNS servers back to the authoritative answer.
간략하게 dnstracer는 DNS서버의 체인을 추적하는 것이다.
dnstracer는 지정된 name server로 name에 대한 요청으로 비 재귀적(non-recursive)으로 보내는 것으로 작동한다.
dnstracer의 목적은 root name servers에 닿을 때까지 타겟에 매핑하는 것이다.
Non-recursive means: if the name-server knows it, it will return the data requested.
If the name-server doesn't know it, it will return pointers to name-servers that are authoritive for the domain part in
the name or it will return the addresses of the root name-servers.
Usage
#dnstracer <url>
- search for the A record of <domain> on local nameserver
- enable overview of received answer. It is by default ‘disable’
- verbose mode
- used to increase the verbose by adding a query class
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