dnstraceroute(1)

DNS traceroute utility

Section 1 dnsdiag bookworm source

Description

DNSTRACEROUTE

NAME

dnstraceroute - DNS traceroute utility

DESCRIPTION

dnstraceroute is a traceroute utility to figure out the path that a DNS request is passing through to get to its destination. Comparing it to a network traceroute can help identify if DNS traffic is routed via any unwanted path.

USAGE

usage: dnstraceroute [-h] [-q] [-a] [-s server] [-p port] [-c count] [-t type] [-w wait] hostname

OPTIONS

-h --help

Show this help

-q --quiet

Quiet

-e --expert

Print expert hints if available

-a --asn

Turn on AS# lookups for each hop encountered

-s --server

DNS server to use (default: first system resolver)

-p --port

DNS server port number (default: 53)

-c --count

Maximum number of hops (default: 30)

-w --wait

Maximum wait time for a reply (default: 5)

-t --type

DNS request record type (default: A)

-C --color

Print colorful output