On Nov 12, 2014, at 6:33 AM, John Kristoff <j...@cymru.com> wrote: > Which ones? OpenSSH does not. It has a 'UseSSH' option that is often > enabled by default, but all this does is log a message if the PTR name > of the client address doesn't match the address when the name is then > resolved. Dropbear has it disabled in source code by default. Tectia > behaves similarly to OpenSSH.
If there's no response to the PTR query, you have to wait 90 seconds for it to timeout. Otherwise, you are correct. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop