[ale] Remote file systems and tunnels

[Boris Borisov]

VPN is like having both machines connected with cable in the same private
subnet. Could do anything between bidirectionally.

On Monday, September 16, 2013, Brian Mathis <
brian.mathis+ale at betteradmin.com> wrote:
> On Mon, Sep 16, 2013 at 7:19 PM, Alex Carver <agcarver+ale at acarver.net>
wrote:
>>
>> On 9/16/2013 14:21, Brian Mathis wrote:
>>>
>>> I've not used it for this, but maybe you should look into setting up a
VPN
>>> between the two servers using OpenVPN.  This is essentially the same as
>>> what you're looking at using SSH for, except it would actually be a real
>>> VPN instead of hacking some stuff through SSH port forwards.
>>>
>>
>> I've never set up a VPN so I'll likely have many questions when I get
started.  For example:  if I set up the VPN server on one end and the
client on the other then get them connected, is the connection
bidirectional such that an initiator (e.g. ssh, browser, etc.) can be on
either side or must all connections using the VPN be initiated on the
client side of the VPN?
>>
>> As an example, suppose the app server (machine A) is the VPN client and
the file server is the VPN server (machine B) so that A initiates a
connection to B.  Can an ssh client on B establish a connection to A going
backwards from the A->B VPN link?
>
> In the most basic setup, where you don't mess with routing or anything,
you wind up with a point to point link between the 2 systems.  Each system
gets its own IP address which is part of the VPN network (separate from
your existing subnet).  Each system should be able to connect to the other
by using the VPN IP address (bi-directional), and no other traffic should
be routed over that.  As long as you don't set the VPN link as the default
gateway, it won't affect any other traffic.
>
>
> ❧ Brian Mathis
>
>

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