Login_check SSL issue with Reverse Proxy

Product Support Mautic 6 Install/Upgrade Support
1

Greetings and thank you for any assistance! I’ll keep the details to the concise info but please feel free to ask any deeper questions.

Architecture

  1. Hyper-V virtual machines running on a Windows 11 host.
  2. All VMs are Ubuntu 22 or 24 servers
  3. VM 1 is a reverse proxy server that’s handling the SSL and traffic routing to the Mautic VMs.
  4. VM 2 is a functioning Mautic 5 instance serving on port 80 but passing traffic securely back through to the VM1 reverse proxy server.

New Mautic 6 VM

  1. I setup a new VM and got Mautic 6 configured in the same way I did the previous instance.
  2. I’m able to load the new Mautic 6 in browser, over SSL, on the public domain.
  3. I’m able to get through the installer and to the login page on a valid SSL connection with cert.
  4. On attempted login, the /login_check path first gets hit insecurely on HTTP and login-loops right back to the Login page.

Solutions I’ve tried

  1. My site URL is correct in the Mautic config file

  2. Proxy and SSL mods are on

  3. I have trusted_hosts and truested_proxies set to the proper domains and IPs.

  4. Added SSL directives to my Mautic 6 VM virtualhost 80 and are pointing at the proper IP for the reverse proxy server. For example:

    ProxyPreserveHost On

ProxyPass        /  https://127.0.0.1:443/
ProxyPassReverse /  https://127.0.0.1:443/

RequestHeader set X-Forwarded-Proto "http"
RequestHeader set X-Forwarded-Port "443"

I think that’s about all I’ve got. I’ve probably tried some other minor things because I was at it for a few hours. Thank you again! :slight_smile:

2

Typo, this is actually: RequestHeader set X-Forwarded-Proto “https”