Thanks all,

It seems with openvpn you have more freedom and you are much more in control 
yourself, compared to server/clients-certs on web-servers/clients.
The amount of freedom is a relief, (as long as you are aware of it ;-)

Tnx, Hans

-----Original Message-----
From: Gert Doering [mailto:g...@greenie.muc.de] 
Sent: donderdag 6 november 2014 12:16
To: Witvliet, J, DMO/OPS/I&S/HIN
Cc: openvpn-users@lists.sourceforge.net
Subject: Re: [Openvpn-users] CN-surprise

Hi,

On Thu, Nov 06, 2014 at 11:13:31AM +0100, j.witvl...@mindef.nl wrote:
> Where & when is the relationship between the URL of the vpn-server tested? 
> During server-startup?

Nowhere.  We don't care about the DNS name pointing to the VPN server.

Thing is, we hold a CA certificate that will tell us whether the certificate is 
valid.  If you want to be sure that you're talking to the *right* server (the 
CA might have issued multiple server certificates, and one of them got stolen, 
or such) you can use

--verify-x509-name <cn in server cert>

to double-check that.

> Is this proper behavior?

Yes.  DNS is irrelevant, you might be connecting to an IP address :-)

gert
--
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             g...@greenie.muc.de
fax: +49-89-35655025                        g...@net.informatik.tu-muenchen.de

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