>>>>> On Tue, 19 Apr 2005 17:35:56 +0200, 
>>>>> [EMAIL PROTECTED] said:

 > On Mon, Apr 18, 2005 at 09:09:36AM -0400, Lowell Gilbert wrote:
 >> "Florian Hengstberger" <[EMAIL PROTECTED]> writes:
 >> 
 >> > Hi!
 >> > I really worry about that it seems (man mountd, man rpcbind)
 >> > impossible to specifiy the interface these daemons bind to.

 > I've had exactly the same problem a while ago! The important thing
 > here, is that nfsd doesn't bind to INADDR_ANY. The other daemons
 > are still potentially vulnerable to other kinds of attacks though,
 > but it would be extremely difficult to inject NFS RPCs into this
 > system from an external interface.

 > I wished rpcbind and mountd (and rpc.lockd and rpc.statd!) could be
 > configured to listen on a specific interface. As long as that is not
 > implemented, you should really use pf or another packet filter on your
 > external interface, to protect NFS.

In addition, tcpwrappers can be used to further protect NFS.

Sandy
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