There's a "webroot" authentication plugin that creates a validation file for use with an existing server, though still a tad bit complex. https://letsencrypt.r

There's a "webroot" authentication plugin that creates a validation file for use with an existing server, though still a tad bit complex. https://letsencrypt.readthedocs.org/en/latest/using.html#comparison-of-different-methods https://letsencrypt.readthedocs.org/en/latest/using.html#com... https://github.com/letsencrypt/letsencrypt/blob/master/letsencrypt/plugins/webroot.py https://github.com/letsencrypt/letsencrypt/blob/master/letse...