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[public-dns-discuss] Re: sales.hpcl.co.in not resolving via 188.8.131.52
If the domain owners want to increase the security of their DNS zone, they should switch to SHA-256 (DNSKEY algorithm 8) with 2048- or 3072-bit KSKs, which are smaller but more resistant to hash collision attacks.
An alternate solution for the domain owners might be to sign the DNSKEY RRSet only with the ZSK, rather than with the ZSK and KSK. That could possibly bring the response size below 1500 bytes and avoid fragmentation.
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