> Nslookup www.aljazeera.net now fails. As does ping  213.30.180.219
>
> Looks like they got them again

Be aware of one gotcha: in case of flood attack, ISPs often filter ICMP
and UDP (ports >1023) packets. So ping and traceroute won't work to the
last hop there.

More reliable is a telnet attempt to port 80. If successful, enter these
three lines:
GET / HTTP/1.0
Host: www.aljazeera.net

(the third line is empty) and watch if you get some HTML back.

It seems the server is up but heavily overloaded. I can't find out if the
machine is overloaded because of a DDoS attack or because too high
interest of viewers or combination of both.

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