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DNS flag day
https://dnsflagday.net/
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[2020] unbound should also set max-udp-size #149

Open chantra opened 3 years ago

chantra commented 3 years ago

It is my understanding that edns-buffer-size will only set a EDNS buffer size from recursive to authoritative, but the recursive to stub answer may be greater than that.

Similarly to PowerDNS's udp-truncation-threshold, and Bind and Knot's max-udp-size/max-udp-payload, Unbound has max-udp-size.

Should this be recommended to be set to 1232 too in order to cap recursive to stub response size? cc @ralphdolmans