By relocating the old instance to a new server (migration to SS4.7 ist the next step) I am not able to login in cms. After enterring the credentials there is a redirect to Security/login. Is there any idea where this redirect comes from?
Details: our planned migration to 4.7.2 is done be building up a complete new site. We will move selected content from the old instance manually and will not migrate all stuff. We started to build up two containers - one for the old, the other for the new instance, behind a traefik-reverse-proxy including certificates from letsencrypt. Inside the container for 2.4.13 we use the same old ubuntu, lighttpd and php versions. This container will be shtudown completely if the new site is finished. Meanwhile, we want to use the old instance as container.
In dev, everything works fine inside the container (including cms-login), but on our productive server, the cms-login does not work. I see differences in the request/response between prod and dev (also old-server). Prod responses in http/2, dev and old-server in http/1.1. There is also an additionally value “location” in the http/2-response (in prod) and I have no glue where this comes from. Is there any idea how to keep the container for the next month until the migration is finished?