Linux › Section I · Your network and its configuration › Topic I.2
The internet layer and IP addresses
Every conversation a Linux machine has on a network starts with an IP address on one of its interfaces. This topic shows how to find those addresses, read what the ip command says about them, and work out which subnet each one belongs to.
In this topic
- Addresses live on interfaces
- Viewing addresses with ip
- Reading the inet line
- Subnets, prefixes and masks
- Common prefix lengths
- Worked example: decoding an address
- Worked example: checking with Python
- Several addresses on one interface
- Common mistakes to avoid
- Key takeaways
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