Domain Name Service (DNS) lookup via the libresolv standard library routines.
This package implements an API for accessing the Domain Name Service (DNS) resolver service via the standard libresolv system library (whose API is often available directly via the standard libc C library) on Unix systems.
This package also includes support for decoding message record types as defined in the following RFCs:
RFC 1035: Domain Names - Implementation And Specification
RFC 1183: New DNS RR Definitions
RFC 2782: A DNS RR for specifying the location of services (DNS SRV)
RFC 2915: The Naming Authority Pointer (NAPTR) DNS Resource Record
RFC 3596: DNS Extensions to Support IP Version 6
RFC 4034: Resource Records for the DNS Security Extensions
RFC 4255: Using DNS to Securely Publish Secure Shell (SSH) Key Fingerprints
RFC 4408: Sender Policy Framework (SPF) for Authorizing Use of Domains in E-Mail, Version 1
RFC 5155: DNS Security (DNSSEC) Hashed Authenticated Denial of Existence
RFC 6844: DNS Certification Authority Authorization (CAA) Resource Record
RFC 6891: Extension Mechanisms for DNS (EDNS(0))
RFC 7553: The Uniform Resource Identifier (URI) DNS Resource Record
For Windows, the package windns provides a compatible subset of this package's API.