[nginx proxy manager] ERR_SSL_UNRECOGNIZED_NAME_ALERT when accessing port 40443.

[jjmmbb]

I'm encountering an issue when trying to access port 40443 on the Nginx Proxy Manager. The error message I receive is: ERR_SSL_UNRECOGNIZED_NAME_ALERT. Has anyone found a solution to this problem?

[al-lac]

I assume this happens when you try to access https://umbrel.local:40443 right?

You need to access the admin page via port 4498, configure a host (eg. app.yourdomain.com) and request a certificate via Lets Encrypt.

After setting up port forwarding on your router (443->40443) you should be able to access the site you configured via https over port 443.