[Recommended] dig (command)

Source: dig (command)

dig (domain information groper) is a network administration command-line tool for querying Domain Name System (DNS) name servers.

dig is useful for network troubleshooting and for educational purposes. dig can operate in interactive command line mode or in batch mode by reading requests from an operating system file. When a specific name server is not specified in the command invocation, it will use the operating systems default resolver, usually configured via the resolv.conf file. Without any arguments it queries the DNS root zone.

dig supports Internationalized Domain Name (IDN) queries.

dig is part of the BIND domain name server software suite. dig replaces older tools such as nslookup and the host program.

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