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Hacking 101

See who is hosting a website

To see who is hosting a website (e.g. netflix.com), you will need the IP address of the website and the WHOIS record for that IP address. You can obtain both from the command-line. Obtain the IP address for netflix.com: # Ping the website ping netflix.com # Alternatively, use traceroute and note the last IP address […]

Categories
Hacking 101

How to chat between computers using netcat on Mac and Linux

In our home we have a mix of Mac and Linux computers. My children have a Raspberry Pi in their room and I have a Mac at my desk. Today we chatted with each other through the Terminal running on both computers. Hi children! Dudududududududu Am I talking to a bird? ^v^ (It was a […]

Categories
Hacking 101

How to discover devices on your network (Mac/Linux)

There are several ways to check what devices are currently logged on to your network (e.g. WiFi at home). The first option is to use arp, which I have found works the best. There will be some cases where it does not work. In the following example, I’ll assume that your IP address is 192.168.1.xxx. […]