dearsky/numa
1
0
Fork 0
Code Issues 10 Pull Requests 1 Actions Packages Projects Releases 25 Wiki Activity

fix: return NXDOMAIN for .local queries instead of SERVFAIL (#18)

Browse Source 
.local is reserved for mDNS (RFC 6762) and cannot be resolved by
upstream DNS servers. Add it to is_special_use_domain() so queries
like _grpc_config.localhost.local get an immediate NXDOMAIN instead
of timing out and returning SERVFAIL.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Razvan Dimescu
2026-03-28 22:42:33 +02:00
committed by GitHub
parent fbf3ca6d11
commit 71dbb138bc
1 changed files with 5 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
src/ctx.rs
View File

@@ -366,7 +366,11 @@ fn is_special_use_domain(qname: &str) -> bool {
return true; return true;
} }
// NAT64 (RFC 8880) // NAT64 (RFC 8880)
qname == "ipv4only.arpa" if qname == "ipv4only.arpa" {
return true;
}
// RFC 6762: .local is reserved for mDNS — never forward to upstream
qname == "local" || qname.ends_with(".local")
} }
fn special_use_response(query: &DnsPacket, qname: &str, qtype: QueryType) -> DnsPacket { fn special_use_response(query: &DnsPacket, qname: &str, qtype: QueryType) -> DnsPacket {