A new Request for Comments is now available in online RFC libraries. RFC 9103
Title: DNS Zone Transfer over TLS Author: W. Toorop, S. Dickinson, S. Sahib, P. Aras, A. Mankin Status: Standards Track Stream: IETF Date: August 2021 Mailbox: wil...@nlnetlabs.nl, s...@sinodun.com, shivankaulsa...@gmail.com, pa...@salesforce.com, allison.man...@gmail.com Pages: 32 Updates: RFC 1995, RFC 5936, RFC 7766 I-D Tag: draft-ietf-dprive-xfr-over-tls-12.txt URL: https://www.rfc-editor.org/info/rfc9103 DOI: 10.17487/RFC9103 DNS zone transfers are transmitted in cleartext, which gives attackers the opportunity to collect the content of a zone by eavesdropping on network connections. The DNS Transaction Signature (TSIG) mechanism is specified to restrict direct zone transfer to authorized clients only, but it does not add confidentiality. This document specifies the use of TLS, rather than cleartext, to prevent zone content collection via passive monitoring of zone transfers: XFR over TLS (XoT). Additionally, this specification updates RFC 1995 and RFC 5936 with respect to efficient use of TCP connections and RFC 7766 with respect to the recommended number of connections between a client and server for each transport. This document is a product of the DNS PRIVate Exchange Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-edi...@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC _______________________________________________ IETF-Announce mailing list IETF-Announce@ietf.org https://www.ietf.org/mailman/listinfo/ietf-announce