LINUX COMMAND ATLAS · COMMAND GUIDE

Linux dig command

Query DNS records and inspect the response returned by a DNS server.

BIND utilities

Syntax

Command form

dig [@SERVER] NAME [TYPE] [QUERY-OPTIONS]

6 options

Option	What it does
`@SERVER`	Send the query to a chosen DNS server.
`A / AAAA / MX / NS`	Query common record types.
`+short`	Print a concise answer section.
`+trace`	Follow delegation from the DNS root.
`+noall +answer`	Show only answer records.
`-x ADDRESS`	Perform a reverse lookup for an address.

3 examples

Query DNS records and inspect the response returned by a DNS server.

dig example.com

Query IPv4 address records and print concise results.

dig example.com A +short

Request the reverse DNS name for an address.

dig -x 192.0.2.10

DNS answers can be cached and may differ by resolver, network and time. dig reports DNS data; it does not prove a service is reachable.