Symfony — Enabling Remote Access to Built-in Server
So you configured your Symfony 4.2 web app and you’re trying to access the, might be a VM, might be in another computer in the network.
You’ve tried everything: configured firewalls, disabled SELinux, allowed access to everything!
And you still can’t open the damned website!
You might need to enable access from all IPs using the following command:
sudo php bin/console server:start 0.0.0.0:8000
You should be able to open the site from all IPs in the network.