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[Openvpn-users] Re: Simple Accounting with linuxbased passwords


  • Subject: [Openvpn-users] Re: Simple Accounting with linuxbased passwords
  • From: Charles Duffy <cduffy@xxxxxxxxxxx>
  • Date: Thu, 01 Sep 2005 17:37:54 -0500

On Thu, 01 Sep 2005 17:57:54 +0200, Jann Traschewski wrote:

> I need a very simple VPN-solution and I don't know whether OpenVPN will meet
> my requirements. I have a linuxbox with about 1500 users. I don't need any
> encryption (also just plain text for the password would be OK). The
> important thing is, that I don't want to have any maintenance to setup an
> account. I just want to have them login by username and password from
> /etc/shadow.
> 
> Simple question: Is that possible with OpenVPN? Encryption is also OK, but
> not needed.

Certainly, this is possible. You can use the PAM authentication plugin to
authenticate against your user accounts.

To disable encryption, use "cipher none".

> Further question: Is it possible that every user gets every login the same
> IP-address (e.g. based by row in /etc/shadow)?

Sure. Using "ifconfig-pool-persist" provides one approach to this; another
would to be to write your own client-connect script that outputs an
ifconfig-push line. (The above is applicable )

> I think I have to use a tap-Interface for my VPN-solution, but I don't
> think OpenVPN has an interface to the DHCP-Dämon?

OpenVPN has enough scripting hooks that you should be able to accomplish
whatever it is you intend.

I'm just curious -- why tap? Do you need non-IP protocols? Broadcast
traffic?


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