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    Setup a Cloudflare Origin Certificate for use on a backend server

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    cloudflareorigin certificatessl
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    • JaredBuschJ
      JaredBusch @stacksofplates
      last edited by

      @stacksofplates said in Setup a Cloudflare Origin Certificate for use on a backend server:

      @JaredBusch said in Setup a Cloudflare Origin Certificate for use on a backend server:

      @stacksofplates said in Setup a Cloudflare Origin Certificate for use on a backend server:

      @JaredBusch said in Setup a Cloudflare Origin Certificate for use on a backend server:

      @stacksofplates said in Setup a Cloudflare Origin Certificate for use on a backend server:

      This is what I did for my personal site. GitLab pages did support Let'sEncrypt but not automated renewals so it was kind of pointless to use that. So I set one of these up. I need to go back and change it now that fully automated renewals are available.

      My question would be why use LE for that if you are using Cloudflare in front anyway? There is zero wrong with this type of origin certificate. If you are using Cloudflare, then it is a simple solution.

      Oh it's just so I don't ever have to worry about renewing it. With GitLab Pages, I just check the box and it gives me a cert and auto renews for me. That's all.

      Obviously nothing wrong with what you are doing. But since you had something in place, I was wondering why change.

      Origin certs from Cloudflare have a default (and max) lifespan of 15 years. Since it should only be trusted by Cloudflare, there should be no need to use a shorter span cert.

      Yeah I changed it to 5 when I did mine. I've always "preached" short cert life span since that's been a thing so it's dogfooding also.

      I don't argue short lifespan is a good thing for frontend. but a backend origin cert? Especially is you validate the origin pull (not in my guide).
      1f39d472-51ac-48ac-8432-218c084050b9-image.png

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      • stacksofplatesS
        stacksofplates
        last edited by stacksofplates

        There is one concern (not for me). The alt names can sometimes be not great (Unless they've changed that recently). Not many people would notice but for a business that might be an issue (not my site obviously).

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        • JaredBuschJ
          JaredBusch
          last edited by

          looks pretty easy actually.
          3adc1918-1dbb-4f0b-8dd6-f8d78f761fdb-image.png

          stacksofplatesS 1 Reply Last reply Reply Quote 1
          • stacksofplatesS
            stacksofplates @JaredBusch
            last edited by stacksofplates

            @JaredBusch said in Setup a Cloudflare Origin Certificate for use on a backend server:

            looks pretty easy actually.
            3adc1918-1dbb-4f0b-8dd6-f8d78f761fdb-image.png

            oh nice, that does look simple. I had to paste the different sections of the cert into the config page for GitLab Pages.

            cloudcert.png

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            • stacksofplatesS
              stacksofplates
              last edited by

              So likely when I need to renew my cert it will be less work to just flip that toggle than to generate the cert from cloudflare and paste it into GitLab. I won't need to do that for another year or two though.

              JaredBuschJ 1 Reply Last reply Reply Quote 0
              • JaredBuschJ
                JaredBusch @stacksofplates
                last edited by

                @stacksofplates Since I setup my origin cert as a 15 year cert, I went ahead used it on GitLab pages. Totally get the point that it is simple either way though.

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                • JaredBuschJ
                  JaredBusch
                  last edited by JaredBusch

                  As an addendum to the original post.

                  • If you are using GitLab pages to host your site, as I am with my Hugo version of jaredbusch.com
                  • And you want to use the Cloudflare origin certificate, then you need to get Cloudflare's root CA cert also.

                  Cloudflare has an article about it that you can read here.

                  If you followed my guide above, you need to get the "ECC" version of the cert.
                  f4f9169a-12d0-407e-aad1-dcd17cc74f8f-image.png

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                  • FATeknollogeeF
                    FATeknollogee
                    last edited by

                    noob question here:
                    If you're hosting on Cloudflare, this should be used instead of LE?

                    JaredBuschJ scottalanmillerS 2 Replies Last reply Reply Quote 1
                    • JaredBuschJ
                      JaredBusch @FATeknollogee
                      last edited by

                      @FATeknollogee said in Setup a Cloudflare Origin Certificate for use on a backend server:

                      noob question here:
                      If you're hosting on Cloudflare, this should be used instead of LE?

                      The website is hosted on GitLab Pages.
                      My DNS is on Cloudflare.

                      Technically, these are unrelated things. Aside from the DNS needing to point to a server someplace.

                      If you turn off the proxy (orange cloud) on Cloudflare, then you can use the LE certificate on GitLab. GitLab should not be able to use an LE certificate if you have the proxy on, because Cloudflare is the MitM and the auth request should not pass through.

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                      • scottalanmillerS
                        scottalanmiller @FATeknollogee
                        last edited by

                        @FATeknollogee said in Setup a Cloudflare Origin Certificate for use on a backend server:

                        noob question here:
                        If you're hosting on Cloudflare, this should be used instead of LE?

                        Not about "should", it's about which makes more sense for you in a given situation.

                        FATeknollogeeF 1 Reply Last reply Reply Quote 0
                        • FATeknollogeeF
                          FATeknollogee @scottalanmiller
                          last edited by

                          @scottalanmiller said in Setup a Cloudflare Origin Certificate for use on a backend server:

                          @FATeknollogee said in Setup a Cloudflare Origin Certificate for use on a backend server:

                          noob question here:
                          If you're hosting on Cloudflare, this should be used instead of LE?

                          Not about "should", it's about which makes more sense for you in a given situation.

                          "could" would probably have been a better word choice.

                          scottalanmillerS 1 Reply Last reply Reply Quote 0
                          • scottalanmillerS
                            scottalanmiller @FATeknollogee
                            last edited by

                            @FATeknollogee said in Setup a Cloudflare Origin Certificate for use on a backend server:

                            @scottalanmiller said in Setup a Cloudflare Origin Certificate for use on a backend server:

                            @FATeknollogee said in Setup a Cloudflare Origin Certificate for use on a backend server:

                            noob question here:
                            If you're hosting on Cloudflare, this should be used instead of LE?

                            Not about "should", it's about which makes more sense for you in a given situation.

                            "could" would probably have been a better word choice.

                            Yup, you definitely can 🙂

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