I forgot to note that you use “nfsadmin” to enable to mapping.
nfsadmin mapping config
nfsadmin mapping config adlookup=yes
In this case I’m pointing to your KDC. I believe it will work if you use your domain name,
as long as you have the appropriate DNS entries. I’m hardcoding the server because it
makes debugging easier.
On Jan 9, 2019, at 12:24 PM, Charles Hedrick via FreeIPA-users
We’re in the process of setting up Windows machines to authenticate against IPA and use
home directories from our NFS servers with Kerberized NFS.
The process is not easy, but possible. One thing I’ve found frustrating is that
documentation on Windows NFS is terrible. In particular, when you do a mount, it’s
critical to get it mounted with the right UID and GID. The procedure most people are using
is to set the UID and GID in the registry. That’s fine if the same person always uses the
system, but it won’t work for us.
In older versions of windows, you could set up /windows/system32/drivers/etc/passwd. But
in Windows 10 they no longer seem to pay attention. The only real way to do it is with
active directory lookup. Fortunately, IPA can handle that. The query is
GSSAPI authenticate as machine$
ldapsearch -Y GSSAPI -b dc=cs,dc=rutgers,dc=edu '(sAMAccountName=clh)’ uidnumber
To get the GSSAPI authentication to work, you need MACHINE$ set as an alias for the host.
And you need to configure Windows to use principal canonicalization. Otherwise Kerberos
ignores the alias. That means doing "ksetup /setrealmflags DOMAIN ncsupported” on
You also need to add samaccountname as an attribute for users, populate it, and make it
readable and searchable.
With this, mapping works.
Off course this assumes that Windows Kerberos is set up pointing to IPA as the KDC, but
there are plenty of other instructions on how to do that.
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