howto: lets encrypt ssl - general info  rev 26 aug 2020

> info | sources

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info:

  Through cpanel/dreamhost panel.

  Subdomains need their own certs.

  Check which certificate site is using:
    load website in browser, click on 'i' in address bar,
      follow the trail to cert info.

  Check it is renewed:
    Can see in panel.
    See https://webmasters.stackexchange.com/questions/117357/auto-check-that-https-certificate-has-renewed-successfully
      2 PDFs saved in folder [30 aug 2018]
        (printfriendly - doesn't show comments; file - with comments)


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sources:

   * Let's Encrypt Documentation
       https://letsencrypt.org/docs/

   * Let's Encrypt FAQs
       https://letsencrypt.org/docs/faq/

   * Redirecting to https
       see in other file - process-website-all-https_ssl_redirect.txt

   * Using in cPanel
       https://www.a2hosting.com/kb/security/ssl/securing-a-cpanel-enabled-account-with-a-lets-encrypt-ssl-certificate 
       https://www.a2hosting.com/kb/security/ssl/using-www-and-non-www-domains-with-an-ssl-certificate

   * Changing to SSL:
       https://www.sculptex.co.uk/changing-a-website-over-to-secure-ssl-https/

   * Troubleshoot problems:
       https://www.whynopadlock.com/

  * more info:
      - https://www.a2hosting.com/kb/security/ssl
      - https://www.a2hosting.com/kb/security/ssl/differences-between-lets-encrypt-certificates-and-traditional-ca-issued-certificates
      - https://www.a2hosting.com/kb/security/ssl/enabling-http-strict-transport-security-hsts-for-your-site
      - https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security 

      - https://www.sculptex.co.uk/changing-a-website-over-to-secure-ssl-https/

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