[CentOS] 2way authentication for SSH?

Thu Jan 31 09:28:49 UTC 2013
J.Witvliet at mindef.nl <J.Witvliet at mindef.nl>

-----Original Message-----
From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of Rudi Ahlers
Sent: Monday, January 28, 2013 8:52 AM
To: CentOS
Subject: [CentOS] 2way authentication for SSH?


Does anyone know of a stable / working "2way authentication" system for
SSH, and even web authentication services?

Most of the banks in South Africa have a system that, when you want to make
a payment, they send you an SMS and you need to verify the action with a
secret code which was SMS'd to you. gmail also has this.

Does anyone know of a "universal" plugin / application that can be used
with SSH and even websites like Wordpress / Joolma / Webmin / etc?

Any pointer would be appreciated.

-----Original Message-----
Is it really 2way (as in mutual) authentication or 2factor authentication?
Mutual authentication is normally done with ssl (server + client) certificates.
Most http engines (apache, tomcat) do support them.

For two factor (have, know) authentication "some assembly" is required, at least for openssh.
See: http://roumenpetrov.info/openssh/

Generally speaking, you _do_ want a trusted third party (like a CA) and certainly _not_ another additional unreliable man-in-the-middle. I mean: like google. But should I trust them with regards to security and availability???


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