Hostname command shows all IP addresses except Loopback. Hostname -I option displays all connected network interfaces. Hostname command may not be available in all Linux distributions
Administrator account required for IP address changes. Basic knowledge of IP addresses and subnet masks needed
IP stands for Internet Protocol and is a unique identifier for network-connected devices. Every device has both public and private IP addresses. IPv4 addresses are shorter but becoming obsolete, while IPv6 will continue
Macs have both internal and external IP addresses when connected to networks. IP addresses consist of four sets of digits separated by periods
WiFi Analyzer app needed to display router's IP address. App shows connected router at top of list with IP at bottom
Google's Dig tool can quickly find website IP addresses in any browser. DNS lookup websites like DNS Checker and NSLookup.io can be used. IP address appears in DNS lookup results after selecting A record