nfs4 idmapping with sss

gerard

9/1/24, 1:47 PM

We have a Dell enterprise file server that implements NFS4 ACLs. I can mount a NFS4 directory and nfs4_setfacl and nfs4_getfacl work correctly. Unfortunately, I am unable to get an ls listing to work correctly. I've enabled id mapping:

echo 0 > /sys/module/nfs/parameters/nfs4_disable_idmapping

and configured /etc/idmapd

[General]
Verbosity = 10
Pipefs-Directory = /run/rpc_pipefs
# set your own domain here, if it differs from FQDN minus hostname
Domain = example.com
[Translation]
Method = sss
[Mapping]
Nobody-User = nobody
Nobody-Group = nogroup

/etc/request-key.d/id_resolver.conf is configured

When I do a ls -l on a mounted file, the request-key is using "localhost" instead of "example.com"

nfsidmap -l

3 .id_resolver keys found:
uid:root@localhost
uid:gweatherby@localhost
gid:wheel@localhost

Has anyone figured out how to make this work?

Figured it out:

I was using the domain name in the nfs4_setfacl command. e.g.

nfs4_setfacl -a A::[email protected] :r filename

just using the account name works as desired

nfs4_setfacl -a A::gweatherby :r filename

0 + 0

nfs4

sssd

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: nfs4 idmapping with sss

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