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Two SSL VPN questions - limiting access and matching username/key

1) We are using AD-auth in addition to the openssl cert/key.  However - is there anything to prevent (AD user) UserA from utilizing UserB's cert/key?  In other words, I would ideally like to do a pattern-match on the "username" with the cert/key username, and reject if they don't match.  Is there a way to do that?  If not exposed via the webadmin GUI, maybe editing the openvpn-server config?  (NOTE: I've done it in a straight openvpn setup, but I don't know what the sophos implementation allows/doesn't allow... and if there _isn't_ a way to do that, I think it would be a nice feature-request).

2) This might be a dumb question - I'm new to Sophos, but not new to openvpn - but how can I limit what the connected user can/cannot see?  I would guess that I would use the firewall and limit/allow where they can go via the VPN pool/subnet.   That's fine for global, but is there a way to do that per-user?  Barring that - if I could make sure that "developerA" always gets vpn-pool-address X.X.X.X then I can give them greater latitude vs. a contractor working overseas (and _just_ needs to get to Dev server Y).  Any pointers appreciated.



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  • with regard to question 2 - I guess I'm referring to the 'ccd' setup...
    community.openvpn.net/.../HOWTO
  • David, one of our unwritten rules is "one topic per thread," so I'll take a stab at your first question, but ask that you edit your post and title to reflect that and then that you start a new thread with your second question.

    Again, your OpenVPN knowledge is great to have around. Are you certain that the implementation in the UTM does not compare the user attempting to login with the CN in the user's cert? Where would you specify that in the OpenVPN configuration? You can see the configuration files in /var/sec/chroot-openvpn/etc/openvpn.

    Cheers - Bob
     
    Sophos UTM Community Moderator
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