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Operating Systems Linux Red Hat Understanding local access to NFS export Post 302605067 by KickstartUF on Tuesday 6th of March 2012 02:44:18 PM
Old 03-06-2012
Understanding local access to NFS export

Hello,

I've inherited an NFS setup that allows external servers to write to an NFS share on a Centos box. Here is an example line from /etc/exports (there are four entries that only are different based on server IP adress).

/exports/foobar 10.3.14.15/255.255.255.255(rw,insecure,async,all_squash,anonuid=296,anongid=296)

(296="anonid" for both user and group)

Here's the entry from "exportfs -v":
/exports/foobar
10.3.14.15/255.255.255.255(rw,async,wdelay,insecure,root_squash,all_squash,no_subtree_check,anonuid=296,anongid =296)
The files and directories on that share are all owned by anonid:anonid.

I've had a request to make a local user (I'll call it "bobsmith") to the NFS server which will have full access to everything under "/exports/foobar/" (in order to perform cronned and manual clean-up tasks on the data).

I admit I am not very versed with NFS, but I'm good with Unix/Linux and usual permission assignment. I am just wary of changing permissions on the local directories and files to make this access possible to "bobsmith" for fear that it will affect or be affected by the changes done to data by remote access.

Any advice on this? Perhaps something simple I am missing in my knowledge?

Thanks!
 

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nfs(5nfs)																 nfs(5nfs)

Name
       nfs - Network File System

Description
       The Network File System (NFS) is a specific file system implemented under the Generic File System Interface, as described in

       NFS  provides  support  for sharing ordinary files and directories in a multivendor networking environment.  The system administrator for a
       file server machine makes a file system available for remote access by placing the name of the file system to be shared in an export  list.
       The  administrator for a client machine can import a file system from any server machine that has granted access permission to the request-
       ing client machine.  A complete exported file system or any subtree of an exported file system can be imported by the client machine.  Once
       imported, users on the client machine can access files in the remote file system as though they were local files.

See Also
       getdirentries(2), getmnt(2), mount(2nfs), mount(2), exports(5nfs), fstab(5), gfsi(5), mount(8nfs), showmount(8nfs)

																	 nfs(5nfs)
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