I didn't find a way but it can't be so hard : How make Apache2 Listen a port but not responding.
My VH:
<VirtualHost *:80>
ServerName catchall
</VirtualHost>
I don't want to respond 403 or another status... I want the connexion failed.
Why ? Just because I have an other VH on the same port but wich is responding for a domain and I can't have this IP connection.
Thank you.