Copyright Goodheart-Willcox Co., Inc. 256 Principles of Cybersecurity provides the owner of a domain and a contact person for the domain by querying the ICANN databases. WHOIS lookups are useful to provide the name and com- pany information of a registered domain name. ICANN and IANA, along with others, provide the management, technical support, and standards behind many of the services and protocols used on the Internet. It is common to say a company or person owns a domain name. However, domain names are not owned, rather leased for a period of time. You have the right to renew your lease before it can be offered again for sale. If you forget to renew your domain name, there is a mandatory grace period set by ICANN that works with your registration agent so you can still renew the domain if you miss the deadline. If you fail to renew the domain, it becomes available for others to lease. Oops, not a hack! It happens big companies can forget to renew domain names. The Dallas Cowboys organization forgot in 2010, and its website went blank. A message was displayed on the domain offering the domain for sale! FYI Canada, USA, and some Caribbean Islands ARIN Europe, the Middle East, and Central Asia RIPE NCC AFRINIC Africa Region LACNIC Latin America and some Caribbean Islands APNIC Asia/Pacific Region Goodheart-Willcox Publisher vector art: Cvijovic Zarko/Shutterstock.com Figure 8-6. The world is broken down into five Regional Internet Registrars for IP addresses. Quick Look 8.1.2 IPv4 Address Exploration The Internet Protocol (IP) address can be used to provide much information, such as fi nding the owner. Additionally, the allocation IPv4 addresses can be determined. 1. Applying what you have learned, launch the command prompt, and enter the ipconfig command. Note your IP address, particularly the fi rst two octets. Is it private? 2. Launch a web browser, and navigate to the site www.whatsmyip.com. This is a great site for fi nding your public IP address, and it provides other tools as well. Note the public IP address reported by this site. Compare this to the ones your classmates are seeing. Are they the same? If so, how are they differentiated from each other?