dig

Retrieve Domain Name System information of a server..

Cheatsheet

dig [server] [name] [type]

Command Line Options

• +short: Display a terse answer
• +nocomments: Turn off comment lines
• +nocmd: Hide the initial comment lines
• +noquestion: Hide the question section of the output
• +noauthority: Hide the authority section
• +noadditional: Hide the additional section
• +nostats: Hide the stats section at the end

Common Query Types

• A: IPv4 address
• AAAA: IPv6 address
• MX: Mail exchanger
• NS: Name server
• TXT: Text records
• SOA: Start of authority
• CNAME: Canonical name

Examples

Basic query

dig example.com

Query a specific record type

dig example.com MX

Query a specific nameserver

dig @8.8.8.8 example.com

Reverse DNS lookup

dig -x 192.0.2.1

Trace DNS resolution path

dig +trace example.com

Get a short answer

dig +short example.com

Query all record types

dig example.com ANY

Check DNS propagation

dig @ns1.example.com example.com

Get SOA record

dig example.com SOA

Use TCP instead of UDP

dig +tcp example.com