batuhanicoz/mit-license — comment on commit 2c3ec322af88381d6da97355810fccbaa5c74d6c
File: index.php line 4
By georgebashi:

Probably not. This relies on the HTTP Host header being sanitised though, rather than DNS, thinking about it.
I've done a quick test on nginx and it seems to disallow anything other than a-z, 0-9, and -.

Interestingly, [RFC2181 section 11](http://www.faqs.org/rfcs/rfc2181.html) says anything can go in a domain name, but [wikipedia](http://en.wikipedia.org/wiki/Hostname#Restrictions_on_valid_host_names) seems pretty certain you can't.

Anyway, you're right, this is a non-issue, ignore me!