On Fri, 3 Jun 2022, John Levine wrote:
In such a configuration, if the host name "foo" matches the candidate TLD "foo", and the latter is changed from NXDOMAIN ...
Do we have any idea how many systems still use search lists? We've been saying bad things about them at least since .CS was added in 1991.
It occurs to me there is another way to look at this. There are already 1487 delegated TLDs, and I doubt anyone could name more than a small fraction of them. If this increases the number of names that will break search lists from 1487 to 1488, how much of a problem is this likely to be in practice, which leads back to ...
It seems to me that the risk depends a lot more on what the name is rather than the particular DNS response. If it's OEMDMCEKCSN. I doubt anyone will notice, but if it's MAIL., watch out.
Regards, John Levine, [email protected], Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. https://jl.ly _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations
