Stop users accessing website via IP address

[Paul A. Procacci]

> I guess I am confused as to why you need the rewrite.
>
> sub vcl_recv {
>       if(req.http.Host ~ "8.8.8.8") { error 750; }
> }

Not to step on any toes.....

The above can have unwanted side effects.  And not konwing
exactly how Puneet's machine is setup one should make it
explicit that the above will match a lot more then you
possibly intend.

8.8.8.8[0-9]

This being just an example.  The first octet having the same
natural problem though that's less likely to happen.
You can fix the above problem be either anchor'ing your
match or using the appropriate operator '=='.

~Paul

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