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2 commits

Author SHA1 Message Date
Colin Vidal
47a80bbd87
Update resend_loop_badcookie system test
Update the resend_loop_badcookie system test to ensure there is no
attempt to resend the query using TCP when getting BADCOOKIE from an
upstream server using this transport already.
2026-05-07 13:32:15 +02:00
Matthijs Mekking
9ae83a0e4e
Add reproducer for BADCOOKIE resend loop
Run malicious server: resend_loop/ans3/ans.py

Start BIND: ns4

Send single query to test.example

The resolver will repeatedly resend queries until the fetch timeout
expires, resulting in resulting in thousands of qrysent while the quota
counter remains 0.
2026-05-07 13:32:15 +02:00