VPN Connection now works - but no network visibility

The Mavericks (Server 3) update (10.9.1 & VPN update) no works enough that I can actually connect – per the Menu item's status. However, I cannot see any of the file structure on the server. I'm logging in as the system's administrator account, so I should be able to see everything connected to the system. What am I doing wrong? If nothing, then is there a known fix coming from Apple? If not, is there a workaround?

OS X Mavericks (10.9.1)

Posted on Dec 23, 2013 2:03 PM

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8 replies

Dec 24, 2013 4:17 AM in response to J. Scott Anderson

So you the issue arises when you connect to file services? Or when you use a remote desktop connection? From the technical perspective, once you port forward your VPN ports through a firewall/router and you are able to connect from a remote system, you are sending all ports and traffic to the remote network over that tunnel. Unless you configured the server's local firewall to allow/deny specific ports, or you've added incorrect routes to the VPN configuration, you should have access to the entire remote LAN.


Does your router have a web interface? Are you able to hit that? Based on your reply, it sounds like the tunnel is formed properly and you are seeing the remote network.

Dec 24, 2013 2:05 PM in response to Strontium90

Yes, I can access the remote router's web interface successfully. So…I am able to access some services, but still unable to see the actual available file structure. Is it possible that there is some port that I need to forward that I'm missing from my list?


I've got the following forwarded to my server:

- 5900

- 311

- 625

- 389

- 686

- 22

- 500

- 1701

- 4500

Dec 24, 2013 7:36 PM in response to J. Scott Anderson

Ah! Gasp! Not good. You probably should shut down 5900, 311, 625, 389, and 686. There are very few reasons I can imagine in which these ports need to be open to the world. Plus, 5900 and 389 are unencrypted so you are sending everything in the plain. Oh, it pains me. If you are opening ssh (port 22), you better be using a hosts.allow file or some other mechanism to secure the port from bot attacks. And 686?! Holy smoke, the last time I recall that port was back in the pre-10.4 days for NetInfo? What is this used for today? You have me stumped on that one.


Best practice is to only open the ports that you need to get inside or the ports required for customer access to services. By this list, it looks like you are using L2TP as your VPN. Those should be the only ones you want to have open. This will require all connections to first establish a VPN connection and then send traffic securely over the VPN tunnel.


No, why you are not seeing the entire file structure of you share, I am not sure. I assume you mean that when you connect to a share point, you can not see all the data inside the share. If this is the case, this could be a restriction of how you implemented your permissions.

Dec 26, 2013 11:03 PM in response to J. Scott Anderson

Hi


" . . . and then see all of the same drives attached to the server in the Finder . . ."


I've underlined 'see' and 'Finder' because I'm wondering if that's the root of your problem which might actually be a non-problem? You can't expect the Finder sidebar to show you anything over a VPN tunnel as it's populated using mDNS (Bonjour) which does not work over a VPN. Not easily in any case and then maybe.


FWIW I would heed Strontium90's summation of your network but it's your server/network and you can do what you like with it.


My 2p


Tony

Dec 27, 2013 4:25 AM in response to Antonio Rocco

Antonio has hit in on the head. Bonjour does not broadcast over VPN. You would need to create a bonjour bridge. If you connect via VPN and then do a Connect to Server... you will be able to "see" your server. But you must route by IP or hostname, not bonjour broadcast name.


OpenVPN can be used to manually build a bonjour bridge or you can look at products from Aerohive, Meraki, and others. It is possible, but you must augment your environment to support it.

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VPN Connection now works - but no network visibility

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