Tuesday, May 25, 2021

Cloudflare's SSL/TLS recommender on plan28.org

The Plan 28 website is a small, static site that I really ought to move to Cloudflare Pages, but... currently it's running on a server that I rent. Since it uses SSL from Cloudflare I wanted to make sure that both the browser to Cloudflare and the Cloudflare to John's Server connections were encrypted. 

So I dropped into the Cloudflare Dashboard to check the settings.

Sure enough both connections were encrypted but it wasn't using the most secure option (Full (strict)) that requires a certificate on the server that Cloudflare can validate. That can either be one that Cloudflare issues or from a commercial or free CA.

Recently, Cloudflare introduced a service that automatically discovers the highest possible security setting for SSL on a site. So I clicked the button...

And let Cloudflare do its thing. Not long after I received an email saying that I could use Full (strict) already.

Which was a bit of a surprise because I didn't remember setting up a valid certificate on the server. But popping back into the Dashboard showed that Cloudflare was now recommending I use Full (strict) and so I clicked the button.

And it worked.

Which lead me to wonder what certificate the server was using. A quick check on the server showed me that I'd set up Cloudflare Origin CA years before and... forgotten. And sure enough there it is in the Cloudflare Dashboard.

So, if you have a Cloudflare account go click that recommender button and discover the highest security setting you can use today. And if it's not Full (strict) there are great options like Cloudflare Origin CA.

No comments:

Making an old USB printer support Apple AirPrint using a Raspberry Pi

There are longer tutorials on how to connect a USB printer to a Raspberry Pi and make it accessible via AirPrint but here's the minimal ...