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tldr/pages/linux/dnstracer.md
FL 2100859d25
dnstracer: add page (#8707) 
* add dnstracer command

* mark parameters correctly

Thanks @CleanMachine1, totally missed that one. Should obviously be in brackets.

Co-authored-by: CleanMachine1 <78213164+CleanMachine1@users.noreply.github.com>

* link man page for reference

Co-authored-by: Reinhart Previano Koentjoro <reinhart_previano@yahoo.com>

* Mark -o in example description

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* Mark -r in example description

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* Mark -o in example description

Accidentally put this for -s as well

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

* Revert -r mnemonic because not applicable

Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

Co-authored-by: CleanMachine1 <78213164+CleanMachine1@users.noreply.github.com>
Co-authored-by: Reinhart Previano Koentjoro <reinhart_previano@yahoo.com>
Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
2022-10-04 13:08:35 +07:00

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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}}