topic Re: Exporting a file through NFS in Operating System - HP-UX

Exporting a file through NFS

Samshen — Fri, 04 Mar 2011 12:44:38 GMT

Hi,
I want to know, is it possible to export a single file through NFS instead of a whole directory?

Thank you.

Re: Exporting a file through NFS

Torsten. — Fri, 04 Mar 2011 12:54:59 GMT

Never thought about that, but I assume it is always based on directories, so you need to export an directory.

Re: Exporting a file through NFS

Saravana Kuppusamy — Fri, 04 Mar 2011 16:30:47 GMT

Hi Sam,

Exporting a single file wouldn't be possible,You need to export a complete directory

Re: Exporting a file through NFS

Steven Schweda — Fri, 04 Mar 2011 17:02:33 GMT

> [...] You need to export a complete
> directory

Sounds right to me.

You could create a new directory, and put
into it (only) a hard link to the file of
interest. (That might work until someone
replaces that file in its original location.)

Re: Exporting a file through NFS

Steven E. Protter — Fri, 04 Mar 2011 17:33:00 GMT

Shalom,

You can do it.

1) Make the file the only file in a directory.
2) Make the file permissions on the other files 000 so they are invisible.
3) Work with ownership and make the other files member of a group that can not be seen.

Definitely possible. You just can't do it by simply adding an entry to /etc/exports or /etc/dfs/dfstab and running exportfs

It is more work than that.

SEP

Re: Exporting a file through NFS

Dennis Handly — Sat, 05 Mar 2011 02:14:25 GMT

Any particular problem you are trying to solve by only exporting one file? Security?

Steven's hardlink suggestion seems the best solution. Make sure you create that directory on the same filesystem as the original file.