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How can I make NFS connection secure? Remote server is on the internet, and not in local network. The server has no firewall and connected to internet directly.

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2 Answers

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You could tunnel it through SSH.

  • Here is a guide for NFS4.
  • Here is a guide for NFS3.
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up vote 4 down vote

The server has no firewall

If the remote system is not secure (and an absence of any firewalling makes that decidedly suspect) then its doesn't matter what you do to your connection - you can't be confident of security. This is particularly true for an NFS server where authentication is not tied into the underlying protocol.

If you're assertions are correct (which I find astonishing) then find out who configured the server this way and shoot them before they can do any more harm.

If you need access to NFS across the internet, use a VPN (IPSEC, SSL tunnel, SSH tunnel, even pptp) and BLOCK all direct internet access (other than the secure connection) on the server.

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"shoot them"? really? – Graeme Donaldson Mar 8 '11 at 11:56
Oh I configured my machine myself. I'm newbie on service server, and starting practical service. Please forgive me :) I agree that no firewall is incredibly BAD configuration. I couldn't thought about protocol without authentication like NFS will serve anyone who can connect the machine. Thanks. – Eonil Mar 9 '11 at 2:01
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