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Aliasing in the DNS and HTTPS/SCVB rrs

It would be very handy to be able to establish an alias for an apex record in the DNS. Unfortunately, this is not a standardized feature of the DNS, although some operators have created proprietary features with this effect. The new HTTPS and Service-binding (SCVB) resource records on the brink of standardization in the IETF are supposed to 'solve' this long-standing interoperability problem. Carsten Strotmann did some research and provided a primer on this topic, including: What is a CNAME? What is an Alias? What is the problem with CNAMEs at the zone apex? How is this new HTTPS/SCVB system supposed to work? What do we know about implementation status? You are welcome to post your questions about BIND 9 DNS on our helpful community mailing list at https://lists.isc.org/mailman/listinf.... The BIND Administrative Reference Manual is online at https://bind9.readthedocs.io/en/stable/. We also maintain a knowledgebase of handy technical articles at https://kb.isc.org. Internet Systems Consortium maintains and publishes the BIND 9 DNS software, under the open source MPL 2.0 license. ISC is a non-profit, operating to help support the Internet infrastructure and facilitate independent connection to and participation in the Internet. We support this work by offering users professional technical support contracts, including advance notification of security vulnerabilities before public disclosure. --- Learn more at http://www.isc.org