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auditing nfs

DISCUSSION Bob Kryger 2 participants 2 messages Feb 26, 2008 – Mar 3, 2008

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Bob Kryger

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So, I'm looking to audit file access (via syscalls create,open,unlink,etc. because I want every file in the filesystem and do not want to have to specify an audit rule for each dir/file) that are accessed via nfs from the nfs server. It seems, I assume because nfs is in the kernel, that I am not getting any audit messages for those nfs files access.

Is my assumption correct?
Any suggestions for auditing from the nfs server side?

BTW: not a list subscriber, please reply directly.

Thanks
Bob

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Bob Kryger                                        Office: 212-813-8677
Systems/Network Administrator                       Cell: 917-913-6670
SAC Capital, Synapse Group                         email: [email protected]
540 Madison Ave                                      AIM: sacbobk
New York, NY 10022


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Quoted 8 lines · On Tuesday 26 February 2008 16:54:13 Bob Kryger wrote:

So, I'm looking to audit file access (via syscalls create,open,unlink,etc. because I want every file in the filesystem and do not want to have to specify an audit rule for each dir/file) that are accessed via nfs from the nfs server. It seems, I assume because nfs is in the kernel, that I am not getting any audit messages for those nfs files access.

Is my assumption correct?

I think in terms of syscall auditing you should be able to see all the syscalls. But at somepoint, it should get the path name and add that to the record. That might be the part where we are missing a hook. Are you getting syscall opens, but no files?

Quoted 1 line

Any suggestions for auditing from the nfs server side?

You should be able to place watches there or use syscall auditing. Not sure what you will get, though, for the user accessing the file.

-Steve