[SOLVED] - Letsencrypt Docker [TechnoDadLife Totorial] - nginx not working

no, i think because there is no server running ??? - and validation=http ...thatswhy it can't do it with my Domain.
as i startet an extra http-server, i came to this point:

The following errors were reported by the server:


   Domain: cloud.cwolfig.dynvpn.de
   Type:   connection
   Detail: dns :: DNS problem: NXDOMAIN looking up A for
   cloud.cwolfig.dynvpn.de


   Domain: cwolfig.dynvpn.de
   Type:   connection
   Detail: Fetching
   http://cwolfig.dynvpn.de/.well-known/acme-challenge/Ijq6tHLyZXgy8AcVilK_5rvsZdofBgKm9r2zxf_tnE8:
   Connection refused


   Domain: heimdall.cwolfig.dynvpn.de
   Type:   connection
   Detail: dns :: DNS problem: NXDOMAIN looking up A for
   heimdall.cwolfig.dynvpn.de


   Domain: omv.cwolfig.dynvpn.de
   Type:   connection
   Detail: dns :: DNS problem: NXDOMAIN looking up A for
   omv.cwolfig.dynvpn.de

but actually:

The following errors were reported by the server:


   Domain: cloud.cwolfig.dynvpn.de
   Type:   connection
   Detail: dns :: DNS problem: NXDOMAIN looking up A for
   cloud.cwolfig.dynvpn.de


   Domain: heimdall.cwolfig.dynvpn.de
   Type:   connection
   Detail: dns :: DNS problem: NXDOMAIN looking up A for
   heimdall.cwolfig.dynvpn.de


   Domain: omv.cwolfig.dynvpn.de
   Type:   connection
   Detail: dns :: DNS problem: NXDOMAIN looking up A for
   omv.cwolfig.dynvpn.de


   To fix these errors, please make sure that your domain name was
   entered correctly and the DNS A/AAAA record(s) for that domain
   contain(s) the right IP address. Additionally, please check that
   your computer has a publicly routable IP address and that no
   firewalls are preventing the server from communicating with the
   client. If you're using the webroot plugin, you should also verify
   that you are serving files from the webroot path you provided.
ERROR: Cert does not exist! Please see the validation error above. The issue may be due to incorrect dns or port forwarding settings. Please fix your settings and recreate the container

Quote from Morlan

If you are not getting a cert the reverse proxy also wont work.
Is dynvpn a dyndns provider?

Yes, it is. [https://www.twodns.de]

With the OMV-Letsencrypt-Plugins i'm able to create a working certificate immediately, working with OMV-Webinterface.
But i dont know how to use this with subdomain or /folder with my Docker-Apps... So i'm trying Letsencrypt-Docker...

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Quote from Morlan

Your docker setup looks good.
I don't know how to deal with the dns error.

Yes. This is my problem. I also have no idea what to do...

And i dont know how to handle my Dockers with OMV-LE-Plugin, because this way is working.

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Just in case, if you are using an arm machine try to lower DH level to 1024

Quote from Nefertiti

Just in case, if you are using an arm machine try to lower DH level to 1024

No, it is
Intel® Quad-Core Processor J4105

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The only difference with mine, but I do not think is matter: only_subdomains value is true
Make sure the ports are open in the router.

so,
i found a solution.

when i do all the tasks without the ENV "SUBDOMAINS", just with the "URL" - then it works!
after first start of Docker with created cert, i can add "SUBDOMANS" - and now i can use it.

thanks @Morlan for your hints by PM.

INFO:
i bought a TLD @ https://www.serverprofis.de , 5€/year - here you cann edit the ip for Domain/Subdomains - also possible by DDNS Tools / URL-Update / Fritzbox etc.
Script to Updateseveral Domains / Subdomains by curl: CURL - DDNS-Update-Script

Hi,

I want to do the same set up like yours.
How do you use Omv LetsEncrypt plugin and LetsEncrypt Docker at the same time ?

If you forward ports 443&80 from router to Docker, then what ports do use it for the LE plugin ?

Quote from tinh_x7

Hi,

I want to do the same set up like yours.
How do you use Omv LetsEncrypt plugin and LetsEncrypt Docker at the same time ?

If you forward ports 443&80 from router to Docker, then what ports do use it for the LE plugin ?

sorry for the late Answer,

i bought an old house, so i had no time for OMV

i think i didn't use OMV-LE-Plugin, just the docker. - but i can't check now, because system is offline due to moving...

No worry.

I've figured it out.