tldr/pages/linux/dnstracer.md

dnstracer

The dnstracer command determines where a DNS gets its information from. More information: https://manned.org/dnstracer.

• Find out where your local DNS got the information on www.example.com:

dnstracer {{www.example.com}}

• Start with a [s]pecific DNS that you already know:

dnstracer -s {{dns.example.org}} {{www.example.com}}

• Only query IPv4 servers:

dnstracer -4 {{www.example.com}}

• Retry each request 5 times on failure:

dnstracer -r {{5}} {{www.example.com}}

• Display all steps during execution:

dnstracer -v {{www.example.com}}

• Display an [o]verview of all received answers after execution:

dnstracer -o {{www.example.com}}