![]() ![]() We are currently checking for record types A, AAAA, MX, NS, CNAME, TXT, PTR & SOA.īy its nature external facing DNS is an open and public service, while the information is openly available you should be aware of what information is being revealed. Since the update from DNS type to ANY to now performing multiple requests for common records the format of the response has been updated to make reading the results clearer. The idea of an amplification attack is the attacker sends a small response and gets a large response sent to the target. Over the past couple of years the any query type has been deprecated.Ī primary reason for deprecating the any type is that it was often used in DNS amplification attacks (DDOS). We used it to show the response from a query of type any. In the past we used the dig command line tool for this DNS lookup tool. ![]() This is generally a more advanced tool that has a number of features that nslookup does not. Another tool found on Linux based systems is the dig tool. ![]() A domain has a number of records associated with it, a DNS server can be queried to determine the IP address of the primary domain ( A record), mail servers ( MX records), DNS servers ( NS nameservers) and other items such as SPF records ( TXT records).ĭifferent tools provide this functionality, a common one being nslookup which is available on many operating systems including Microsoft Windows and most Linux distributions. ![]()
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December 2022
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