How to Identify Specific IP Addresses on a Linux System

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Linux systems can have multiple IP addresses simultaneously for loopback, LAN, VPN, and container interfaces. The command `hostname -I` lists addresses but not their associated interfaces. A more detailed view linking addresses to specific interfaces can be obtained using `ip -br addr show`. To determine which IP the system will use to reach a specific destination, such as an external server, the command `ip route get` can query the kernel's routing table.

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