Hi,
From the server I get a response like aaa CNAME bbb ccc CNAME ddd bbb CNAME ccc The ordering of the CNAME chain is incorrect, ideally it should be like aaa CNAME bbb bbb CNAME ccc ccc CNAME ddd Is there some RFC which prohibits the configuration of CNAME chains as given in the first example, ie CNAME chains not in order. I tried to search on the internet, and could come up with this para in RFC 2308: DNS NCACHE "QNAME" - the name in the query section of an answer, or where this resolves to a CNAME, or CNAME chain, the data field of the last CNAME. The last CNAME in this sense is that which contains a value which does not resolve to another CNAME. Implementations should note that including CNAME records in responses in order, so that the first has the label from the query section, and then each in sequence has the label from the data section of the previous (where more than one CNAME is needed) allows the sequence to be processed in one pass, and considerably eases the task of the receiver. It would be a great help if it can be confirmed that resolvers can expect CNAME chains to be in order. Thanks & Regards Ashwin
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