Module Server 

DNS Server

Builds and serves the private DNS catalog for CodeEditorLand. Binds exclusively to loopback (127.0.0.1) to prevent LAN exposure.

Constants

DNS_TCP_RESPONSE_BUFFER_SIZE 🔒

Buffer capacity for outgoing DNS TCP responses per connection. 65 535 is the upper bound a single DNS message can reach over TCP (the 16-bit length prefix cap from RFC 1035 §4.2.2). Picking the cap avoids any truncation for zone-transfer or large TXT responses while staying well within memory for the dozen-or-so concurrent connections a local editor.land catalog ever sees.

Functions

BuildCatalog

Builds a DNS catalog for the CodeEditorLand private network.

Serve

Serves DNS queries on the specified loopback port (async).

ServeSync

Serves DNS queries synchronously (blocking convenience wrapper).