How ?

If i remember correctly the SMTP server is down, so you can’t access to these page and it redirect you to the main page. When i click in the link a message like it doesn’t have properly configured the SSL certificate.

Thanks for your answer,

Any idea of how could we do this redirect ?

The name smtp.hackthis.co.uk has no special meaning. It is just a name. It doesn’t mean that if you do something with it (like visiting it in a browser) you are actually doing something with an SMTP server. Names point to IP addresses, that’s all there is to it. Actual services run on specific ports on IP addresses.

In this case it seems most things that match *.hackthis.co.uk point to the same address. You can try asdgfjkadfbgka.hackthis.co.uk and you’ll see you get the same as with smtp. It is the same address as where the webserver is running, which seems to be configured to redirect to the mentioned URL for any domain ending in .hackthis.co.uk that it doesn’t recognise.

Oh I see thank you for your answer,

So is there a way to find all of those *.hackthis.co.uk like status.hackthis.co.uk ?

Not really. If the domains were explicitly set in the DNS server (instead of this “catch all”) and the DNS server allowed extracting zone information (which they usually don’t), then you could request them from the DNS server. In this case, they technically all exist, so you’d have to be more specific in what it means to find one. (That is, find all that have a different IP or have a specific web service.)

Now your best chance is probably finding them with google. That or something like hacking the server and checking the web-server configuration.

[quote=dloser]
That or something like hacking the server and checking the web-server configuration.
[/quote]
Let’s go for this !