server_name that starts with a number

[rainer at ultra-secure.de]

Hi,


I have a website that has a server_name that starts with a number (or 
two numbers, actually).

I also have a catchall default_server configured with the server_name 
"_".

Now, it seems when the server_name starts with a number, it's ignored 
and requests are routed to the default server.


Can someone explain this?

How do I fix this?