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Use EDNS by default #596

Merged
merged 2 commits into from Nov 5, 2023
Merged

Use EDNS by default #596

merged 2 commits into from Nov 5, 2023

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bradh352
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@bradh352 bradh352 commented Nov 5, 2023

All DNS servers support EDNS, by using this by default, it will allow larger responses without the need to switch to TCP. If by chance a DNS server is hit that doesn't support EDNS, this is detected due to the lack of the OPT RR in the response and will be automatically retried without EDNS.

Fix By: Brad House (@bradh352)

@bradh352 bradh352 merged commit 4ec6b5c into c-ares:main Nov 5, 2023
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@bradh352 bradh352 deleted the defaults branch November 5, 2023 18:09
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