On 21 Nov 2011 12h01 WET, nginx-forum@nginx.us wrote:

> Google 2 step authentication has a pam module:
>
> http://code.google.com/p/google-authenticator/wiki/PamModuleInstructions

You can implement 2 factor authentication on Nginx using the
auth_request module:

http://mdounin.ru/hg/ngx_http_auth_request_module/file/a29d74804ff1/README

--- appa

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