Network challenges

All challenges listed here are about finding network related information, live hosts and services.

Network information

Info 1.
Find all subdomains of!
Info 2.
Find the ip addresses of all related servers!
Info 3.
Find the network size of!
Info 4.
Do a reverse dns lookup for and find all other domains for the same ip!

Port scanning

Port 1.
Ask the computer names from the dns server in the network range!
Port 2.
How many ports are open on the server?
Port 3.
Find all the web services inside the network range!
Port 4.
Find the hidden webservice on palpatine in the portrange 10000-15000!