Local cert is invalid

1. The problem I’m having:

I am trying to get caddy to work as a reverse proxy and use local certs for accessing the websites. The reverse proxy is set up and working, but my browser and curl is stating that the SSL/TLS is not secure.

2. Error messages and/or full log output:

my curl command is: curl https://nathan.wiki.local
My output from that is:

curl : The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.
At line:1 char:1

  • curl https://nathan.wiki.local
  •   + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebExc
      + FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand

3. Caddy version:

Caddy version 2.7.6 on a raspberry pi

4. How I installed and ran Caddy:

apt install caddy

a. System environment:

Ubuntu 22.04.2 on a raspberry pi 4

d. My complete Caddy config:

nathan.bitwarden.local {

nathan.wiki.local {
tls internal

:80 {
respond “No service defined”

I have read online in other posts, that I might need to install the root certificate on my other machines to trust it. I have looked, but I can’t find the root certificate anywhere.

Since you installed Caddy using a package manager and are running Caddy as a systemd service, it’s running as the caddy user, whose HOME is /var/lib/caddy. So the root cert is in Caddy’s storage at /var/lib/caddy/.local/share/caddy/pki/authorities/local

You’ll need to copy and install the root cert to whatever machines/browsers need to trust connections to Caddy.


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