Hello Enzo, Thank you for the response! I failed to mention the initial aspect that is specific to mounting a domain based DFS share. This would contact a random domain controller instead of a DC local to the calling client's site, should it exist. A CLAP ping like that used by SSSD[0] could be used to identify the nearest domain controller prior to initiating a subsequent mount request. This is where the DNS discovery for a ldap entry would be applicable. Hope that helps to clarify the use case. Thanks again for the response. [0] https://docs.pagure.org/sssd.sssd/design_pages/active_directory_dns_sites.html On Mon, Jan 8, 2024 at 1:22 PM Enzo Matsumiya <ematsumiya@xxxxxxx> wrote: > > On 01/08, Jacob Shivers wrote: > >Hello, > > > >I have a use-case for a Linux SMB client to mount DFS replicated > >shares, with a preference for sites that are closer geographically. > >DNS site discovery/awareness exists within DFS[0], but I have not read > >of any work currently under investigation. > > DFS supports referral responses based both on site location and site costing, > which are done on the _server_ (MS-DFSC 3.2.1.1 and 3.2.1.2). > > For site location, the targets are sorted with targets on the same site as > the client first, in random order, and then targets outside of client's site > are appended, also in random order. > > If supported and enabled, referral responses based on site cost will, practically, > sort the targets from lowest to highest cost (relative to the client, > and in random order if same cost). > > On either case, the client will try to connect to the targets in order > it was received. > > >[0] https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-adts/7fcdce70-5205-44d6-9c3a-260e616a2f04?redirectedfrom=MSDN > > I don't see how the info on that link would apply to this particular > scenario, as doing such discovery on the client would be redundant since > the server, if properly implemented, already did it. > > Please clarify if you think I misunderstood your case. > > > Cheers, > > Enzo >
