Any One-Time password system.

[Jon Spriggs]

PPTP is broken [1]. OpenVPN (for which there are clients for Android,
iPhone, MacOS, Linux, Windows) is not. OpenVPN will use TLS certificates as
well as other centrally managed authentication based systems (e.g. Radius,
MOTP, maybe Google Authenticator?) to authenticate and authorize. There are
lots and lots and lots of postings online discussing how to do these.

[1] https://www.cloudcracker.com/blog/2012/07/29/cracking-ms-chap-v2/ also
http://www.h-online.com/security/features/A-death-blow-for-PPTP-1716768.htmland
many others.

--
Jon "The Nice Guy" Spriggs


On 16 May 2013 15:41, Sergii Bieliaievskyi <s.bieliaievskyi at sethq.com>wrote:

>
>
>
> 2013/5/16 Arran Cudbard-Bell <a.cudbardb at freeradius.org>
>
>> What are you actually trying to use this with?
>>
>> 802.1X/WPA2-Enterprise or for VPN authentication.
>>
>
> VPN authentication.
> And it should be multiplatform VPN. PPTP is supported by almost every
> vendors. I can establish PPTP connection from iPhone, Android,Linux,
> MacOS.... and so on That`s why PPTP is preferable.
>
>
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