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net/dns/recursive: set EDNS on queries

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Updates tailscale/corp#30631

Change-Id: Ib88ea1bb51dd917c04f8d41bcaa6d59b9abd4f73
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
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Brad Fitzpatrick 2025-07-21 08:36:43 -07:00 committed by Brad Fitzpatrick
parent d6d29abbb6
commit 5d4e67fd93
1 changed files with 1 additions and 0 deletions
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net/dns/recursive/recursive.go
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@ -547,6 +547,7 @@ func (r *Resolver) queryNameserverProto(
// Prepare a message asking for an appropriately-typed record
// for the name we're querying.
m := new(dns.Msg)
m.SetEdns0(1232, false /* no DNSSEC */)
m.SetQuestion(name.WithTrailingDot(), uint16(qtype))
// Allow mocking out the network components with our exchange hook.