Hi Totemo, Totemo Support <support@xxxxxxxxxx> writes: > From my point of view it looks like there is no resolution attempt of resolving the domain based UNC (//domain.dev.com/files) into the actual dfsroot representation. > > Since my domain controller doesn't host the dfsroot structure, any attempts resolving on it directly will fail. > > I tried initially with Kernel 4.11 but also build a recent 4.13 with the same issues. > Latest keyutils (/sbin/key.dns_resolver) are in place and configured on the system. > > Do you need any further scripts/explanations how I set up the test servers? It's nothing special, everything sticks to the defaults. Could you open a bug report here [1] and provide network traces of you mounting with smb1 and another one of you mounting with smb3 (add them as attachement). Thanks 1: https://bugzilla.samba.org/buglist.cgi?component=kernel%20fs&product=CifsVFS&resolution=--- -- Aurélien Aptel / SUSE Labs Samba Team GPG: 1839 CB5F 9F5B FB9B AA97 8C99 03C8 A49B 521B D5D3 SUSE Linux GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html