I did not mean that the KDC ought to make DNS lookups specifically, not via DNS protocol anyways.
This of a realm's KDB being augmented with RR data from the relevant DNS zone(s). That's what I'm thinking of. I would refuse to use the DNS protocol from the KDC for such lookups unless: a) the DNS server runs local to the KDC and is authoritative for all relevant zones and is setup such that the KDC is never referred to another DNS server, b) the KDC's DNS server does not answer DNS queries from other hosts, c) the zone files are not transferred using the DNS protocol but using some other more secure protocol (think SSH). The good news is that this aliasing behaviour can be implemented without needing any changes to the Kerberos specs. About the only aspect I can see of KDC SPN aliasing that would be useful to discuss in the context of the Kerberos specs is whether to use the canonical SPN's key straight as it is or to derive a new one for the given alias from the actual key and the alias name (I prefer the latter); this is relevant to interoperability as acceptors need to know how to deal with spontaneous SPN aliasing by the KDCs, though not crucial because one could always generate the keytab entries ahead of time knowing what aliases a host has or will have and thus avoid having to add code to libkrb5 for dealing with SPN aliasing. Nico -- > -----Original Message----- > From: peter huang [mailto:[EMAIL PROTECTED]] > Sent: Thursday, May 23, 2002 9:29 AM > To: [EMAIL PROTECTED] > Subject: Re: FQDN needed by sasl_gss_client_step or gss_import_name? > > > I agree with what you have said here. There is a need for > higher degree of > integration between KDC and DNS. So, how can one implement > this using the > MIT/Heimdal Kerberos with BIND DNS? It is still not clear > to me what > needs to be changed except secure query to DNS server, e.g. > are you imply > that the realm needs to be DNS zone (as in Microsoft win2k)? > > -peter > <[EMAIL PROTECTED]> wrote in message > news:[EMAIL PROTECTED] > .ubsgroup.net. > .. > ... > Visit our website at http://www.ubswarburg.com This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept liability for any errors or omissions in the contents of this message which arise as a result of e-mail transmission. If verification is required please request a hard-copy version. This message is provided for informational purposes and should not be construed as a solicitation or offer to buy or sell any securities or related financial instruments. ________________________________________________ Kerberos mailing list [EMAIL PROTECTED] http://mailman.mit.edu/mailman/listinfo/kerberos
