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Full Discussion: NFS share and groups
Operating Systems Linux Red Hat NFS share and groups Post 302937113 by cjhilinski on Tuesday 3rd of March 2015 04:09:14 PM
Old 03-03-2015
Quote:
Originally Posted by achenle
What oops?

Not one post in this thread has shown the actual numeric IDs.

Until you know what the numeric IDs actually are, you can't tell where your problem is. Are the IDs getting changed from the server? Or the client? Or just in the ID lookup?
When an nfs-receiving system cannot resolve a groupname/gid, by default and design, it assigns that file/directory to the "nobody" group. Nobody is a real group. On RH7, it is gid 99.

What is happening is that the nfs-sharing server is providing the groupname/gid acrn/10001, and the nfs-receiving system can't understand something about that. So, it bails out and gives it to nobody.

I think you were expecting that the receiving system would list the group for the directory as 10001 but somehow think the groupname for 10001 was nobody. It doesn't work that way. The directory is nobody (gid 99).

Code:
#ls -l /data/acrn
drwxrwx--x  51 jsmithi nobody         66 Oct 24 07:24 acrn
# ls -ln /data/acrn
drwxrwx--x  51 119    99    66 Oct 24 07:24 acrn
# id -a 99
uid=99(nobody) gid=99(nobody) groups=99(nobody)

It's doing exactly what's expected because it doesn't understand or know the group acrn/10001...it gives the directory to nobody. But it does know acrn.
Code:
# id -g acrn
10001

That's the problem from the original post.

Last edited by Scott; 03-03-2015 at 06:14 PM.. Reason: Code tags, please...
 

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DPNS-GETACL(1)							DPNS User Commands						    DPNS-GETACL(1)

NAME
dpns-getacl - get DPNS directory/file access control lists SYNOPSIS
dpns-getacl [-a] [-d] path... DESCRIPTION
dpns-getacl gets the Access Control List associated with a DPNS directory/file. For each path, it displays the file name, owner, the group, and the Access Control List (ACL) if present. If a directory has a default ACL, dpns-getacl also displays the default ACL. Regular files cannot have default ACLs. The output looks like: # file: filename # owner: username # group: groupname user::perm user:uid:perm group::perm group:gid:perm mask:perm other:perm default:user::perm default:user:uid:perm default:group::perm default:group:gid:perm default:mask:perm default:other:perm The first "user" entry gives the permissions granted to the owner of the file. The following "user" entries show the permissions granted to specific users, they are sorted in ascending order of uid. The first "group" entry gives the permissions granted to the group owner of the file. The following "group" entries show the permissions granted to specific groups, they are sorted in ascending order of gid. The "mask" entry is the maximum permission granted to specific users or groups. It does not affect the "owner" and "other" permissions. The "mask" entry must be present if there are specific "user" or "group" entries. "default" entries associated with a directory are inherited as access ACL by the files or sub-directories created in that directory. The umask is not used. Sub-directories also inherit the default ACL as default ACL. As soon as there is one default ACL entry, the 3 default ACL base entries (default user, default group, default other) must be present. The entry processing conforms to the Posix 1003.1e draft standard 17. path specifies the DPNS pathname. If path does not start with /, it is prefixed by the content of the DPNS_HOME environment variable. uid is displayed as the username if known else as the numeric id. gid is displayed as the groupname if known else as the numeric id. perm is expressed as a combination of characters rwx- OPTIONS
-a only display the access ACL. -d only display the default ACL. EXAMPLES
dpns-getacl /dpm/dteam/test/file.log/d2 # file: /dpm/dteam/test/file.log/d2 # owner: baud # group: c3 user::rwx group::r-x #effective:r-x other::r-x default:user::rwx default:group::r-x default:other::r-x EXIT STATUS
This program returns 0 if the operation was successful or >0 if the operation failed. SEE ALSO
Castor_limits(4), dpns_chmod(3), dpns_chown(3) AUTHOR
LCG Grid Deployment Team DPNS
$Date: 2005/03/02 08:32:12 $ DPNS-GETACL(1)
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