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MacOS dig command

dig Syntax:

Terminal window
dig [options] [domain]

Options:

OptionDescription
+traceTrace the delegation path from the root name servers for the specified domain.
+nocmdSuppresses the initial display showing the version number and the query options.
+noallSuppress showing all common options.
+commentsShow the comment lines in the output.
+noquestionDon’t print the question section of a query, only the answer.
+statsShow query time statistics.

Parameters:

ParameterDescription
domainThe domain name to query for DNS information.

dig Usage:

Query an A Record

Terminal window
dig A google.com

Queries the A record for the domain “google.com”.

Query a Specific DNS Server

Terminal window
dig @8.8.8.8 google.com

Queries the domain “google.com” using the DNS server at 8.8.8.8.

Perform a Reverse DNS Lookup

Terminal window
dig -x 8.8.8.8

Performs a reverse DNS lookup for the IP address 8.8.8.8.

Display Additional Information

Terminal window
dig +additional google.com

Displays additional information in the dig query results for the domain “google.com”.

How do I use dig in MacOS?

To use the dig command in MacOS, execute the following command:

Terminal window
dig example.com

What is the syntax for querying a specific DNS server with dig in MacOS?

To query a specific DNS server using dig in MacOS, use the following command syntax:

Terminal window
dig @dns_server example.com

How can I perform a reverse DNS lookup with dig in MacOS?

To perform a reverse DNS lookup using dig in MacOS, you can run the following command:

Terminal window
dig -x IP_address

How do I get more detailed information in the dig output in MacOS?

To get more detailed information in the dig output in MacOS, add the “+trace” option to the command like this:

Terminal window
dig +trace example.com

How can I filter the output of dig to display only specific information in MacOS?

To filter the output of dig to display only specific information in MacOS, you can use the “+short” option in the command:

Terminal window
dig +short example.com

What is an example command for querying a specific DNS record type with dig in MacOS?

To query a specific DNS record type using dig in MacOS, you can use a command like this:

Terminal window
dig -t MX example.com

How do I check the DNSSEC validation of a domain using dig in MacOS?

To check the DNSSEC validation of a domain with dig in MacOS, you can use the “+dnssec” option in the command:

Terminal window
dig example.com +dnssec

Applications of the dig command

  1. Querying DNS servers to retrieve DNS records.
  2. Checking the IP address associated with a domain name.
  3. Testing and troubleshooting DNS configuration and connectivity.
  4. Performing DNS lookups to verify domain name resolution.
  5. Investigating DNS settings and configuration for troubleshooting network issues.