howto: all - ssl with cloudflare        rev  3 aug 2019

through cpanel.

> info | sources

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info:

  CloudFlare SSL: Use full (strict)

  Let's Encrypt certificates are only valid for 90 days, 
  and Cloudflare must be turned off during the renewal period
    https://www.a2hosting.in/kb/add-on-services/cloudflare/lets-encrypt-and-cloudflare-universal-ssl
    ok - this explains why got problem, and error was
      couldn't write to .known_hosts.
      See A2hosting ticket RLY-487-10973 started 31 jul 2019.

  "When using Cloudflare, Cloudflare’s universal SSL is what browsers would see,"
     -- https://www.liquidweb.com/kb/using-lets-encrypt-cloudflare/


  HSTS: "Grey clouding a subdomain in your DNS records, 'Pausing' the Cloudflare service"
    will cause the site not to work at all.
    Leave subdomains off HSTS.

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sources:

  * with any:
    
    + How to Use Let’s Encrypt with Cloudflare
        https://www.liquidweb.com/kb/using-lets-encrypt-cloudflare/
        Goes over all Cloudflare settings for SSL, explains HSTS.

  * with A2Hosting:
    
    + Setting up Let's Encrypt and Cloudflare Universal SSL for end-to-end encryption
        https://www.a2hosting.in/kb/add-on-services/cloudflare/lets-encrypt-and-cloudflare-universal-ssl

  * with Dreamhost:
  
    + Using Cloudflare with an SSL certificate and WordPress
        https://help.dreamhost.com/hc/en-us/articles/360003360511

    + Cloudflare with SSL FAQs - at dreamhost.
        https://help.dreamhost.com/hc/en-us/articles/216474977-Cloudflare-with-SSL-FAQs

    + Cloudflare with SSL overview - at dreamhost.
        https://help.dreamhost.com/hc/en-us/articles/216475197-Cloudflare-with-SSL-overview


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since: 26 oct 2018
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