C2 HTTPs problem with LetsEncrypt

[AltReality]

I have a Hetzner VPS based in Helsinki Finland. I was able to get the C2 application running in non-https mode with no trouble.

I set up a DNS record for c2.domain.net (my own domain info)...and it routes there correctly.

I have opened port 443, 2022, <non-standard SSH port>, 80, and 8080 on the firewall

When I launch c2 with the -https parameter it launches and says it is running, but I get TLS handshake error messages.

(This is running in debug mode)

info    | 2022-01-01 15:02:58 [*] Running Hak5 Cloud C2
debug   | 2022-01-01 15:03:49 Database view error: could not find key in cache
2022/01/01 15:04:04 http: TLS handshake error from xxx.xxx.xxx.xxx:64256: acme/autocert: unable to satisfy "https://acme-v02.api.letsencrypt.org/acme/authz-v3/64138449460" for domain "c2.domain.net": no viable challenge type found
2022/01/01 15:04:04 http: TLS handshake error from xxx.xxx.xxx.xxx:64257: acme/autocert: missing certificate
2022/01/01 15:13:55 http: TLS handshake error from xxx.xxx.xxx.xxx:38194: acme/autocert: missing server name

When I check that URL listed in the error message, it says the Status is "deactivated" and that there are 3 challenges listed, all "pending".

 

It seems to me that LetsEncrypt isn't giving the cert? But I would expect that to show in the debug log.

Any thoughts? any troubleshooting suggestions?

Thanks!

[dark_pyrro]

You perhaps got some suggestions worth looking up on Discord

[Gwozd]

If you have just applied an sl certificate, it may take some time after the new settings. If server monitoring does not show any critical failures, then you have nothing to worry about.