TLDR:

  • Update: the server software has a bug about generating+saving certificates. Bug has been reported; as a workaround I added the local IP to my local ‘hosts’ file so I can continue (but that does not solve it of course).
  • I suspect there’s a problem with running two servers off the same IP address, each with their own DNS name?

Problem:

  • When I enter https://my.domain.abc into Firefox, I get an error ERR_SSL_UNRECOGNIZED_NAME_ALERT instead of seeing the site.

Context:

  • I have a static public IP address, and a Unifi gateway that directs the ports 80,443 to my server at 192.168.1.10 where Nginx Proxy Manager is running as a Docker container. This also gives me a _Let’s Encrypt certificate.
  • I use Cloudflare and have a domain foo.abc pointed to my static public IP address. This domain works, and also a number of subdomains with various Docker services.
  • I have now set up a second server running yunohost. I can access this on my local LAN at https://192.168.1.14.
  • This yunohost is set up with a DynDNS xyz.nohost.me. The current certificate is self-signed.
  • Certain other ports that yunohost wants (22,25,587,993,5222,5269) are also routed directly to 192.168.1.14 by the gateway mentioned above.
  • All of the above context is OK. Yunohost diagnostics says that DNS records are correctly configured for this domain. Everything is great (except reverse DNS lookup which is only relevant for outgoing email).

Before getting a proper certificate for the yunohost server and its domain, I need to make the yunohost reachable at all, and I don’t see what I am missing.

What am I missing?

  • 𝓢𝓮𝓮𝓙𝓪𝔂𝓔𝓶𝓶English
    8•1 year ago

    Did you try doing any searching on the error message before posting here? That’s an SSL error. Most likely due to you using a dns name that doesn’t match the cert being provided by the server.

    • @PlutoniumAcidOPEnglish
      1•1 year ago

      Yes, I did. It appears that the server is not even providing any cert at all to the browser, which is why this fails.

      This looks to be a problem within the Yunohost software that generates the self-signed cert, so nothing I can do about it from the outside. I have posted an error report to the Yunohost forum.

      • @SheeEttinEnglish
        4•1 year ago

        I think if there was no cert at all, the server would fail to start in the first place.

      • 𝓢𝓮𝓮𝓙𝓪𝔂𝓔𝓶𝓶English
        3•1 year ago

        Also I would consider trying to use openssl to see what’s actually happening since the browser can sometimes obfuscate things in it’s attempts to be helpful.

        openssl s_client -connect :443

        I’m with @[email protected] in that the server should fail to start if there was no certificate to load. It’s more likely that the server is providing an invalid cert. Using the openssl command above would help you identify that.