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тАО11-24-2009 05:48 AM
тАО11-24-2009 05:48 AM
NFS GID limit
Hi all,
I have a problem with GID and NFS
On RHEL5 server (servA) i export a file system where a directory is root.group owned and perm 2770.
/etc/export
/dirroot/fs xxx.xxx.0.0/16(rw)
ls -l /dirroot
drwxrwxrwx 4 root root 4096 Nov 24 14:06 fs
ls -ln /dirroot/fs
drwxrws--- 2 0 10021 4096 Nov 24 14:08 prv1
drwxrws--- 2 0 10022 4096 Nov 24 14:06 prv2
On an RHEL5 client (servB) i mount the fs.
Now on servB i can read and write into prv1 (gid=10021), but i have a 'permission denied' when i read prv2.
Naturally mi user (user1) exist via LDAP on every server, groups '10021' and '10022' are defined on every node (via LDAP), and the user is member of both groups
Can anyone help me?
Thanks,
Daniele
I have a problem with GID and NFS
On RHEL5 server (servA) i export a file system where a directory is root.group owned and perm 2770.
/etc/export
/dirroot/fs xxx.xxx.0.0/16(rw)
ls -l /dirroot
drwxrwxrwx 4 root root 4096 Nov 24 14:06 fs
ls -ln /dirroot/fs
drwxrws--- 2 0 10021 4096 Nov 24 14:08 prv1
drwxrws--- 2 0 10022 4096 Nov 24 14:06 prv2
On an RHEL5 client (servB) i mount the fs.
Now on servB i can read and write into prv1 (gid=10021), but i have a 'permission denied' when i read prv2.
Naturally mi user (user1) exist via LDAP on every server, groups '10021' and '10022' are defined on every node (via LDAP), and the user is member of both groups
Can anyone help me?
Thanks,
Daniele
2 REPLIES 2
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тАО11-24-2009 08:11 AM
тАО11-24-2009 08:11 AM
Re: NFS GID limit
NFS has a limitation on the numbers of groups that a user belongs, I thinks is 16. How many groups your users belongs to?
See:
http://nfsworld.blogspot.com/2005/03/whats-deal-on-16-group-id-limitation.html
Also, the permissions for the fs directory allows write to others, your security is in risk with this setting.
See:
http://nfsworld.blogspot.com/2005/03/whats-deal-on-16-group-id-limitation.html
Also, the permissions for the fs directory allows write to others, your security is in risk with this setting.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
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тАО11-24-2009 08:25 AM
тАО11-24-2009 08:25 AM
Re: NFS GID limit
Hi Ivan,
in effect the 10021 and 10022 gid are on the limit of the 16th and 17th element in the list of groups for mi user (id userid).
Thanks,Daniele
in effect the 10021 and 10022 gid are on the limit of the 16th and 17th element in the list of groups for mi user (id userid).
Thanks,Daniele
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