After upgrading my Rocky Linux from 8.4 to 8.8, my nginx 1.1.14 1-9 reverse proxy session doesn’t seem to operate as expected anymore. Instead I see a lot of FIN ACK packets (tcpdump) when loading my Graylog landing page such that it shows the below message. But when I directly go to my Graylog installation on port 9000 it loads fine.
Before the upgrade, I tested this and it worked fine. After the upgrade it no longer works. I know the upgrade had some security policy (selinux) upgrade as well. Any idea where I could be going wrong?