Networking for Web Developers

Start exploring the network using low-level command-line tools such as ping and netcat.

Investigate the Domain Name System (DNS), which translates hostnames into IP addresses.

Investigate the structure and use of Internet addresses, including network blocks, interfaces, network address translation (NAT), and IPv6.

Use tcpdump to examine packets that make up the requests and responses for three protocols: ping, DNS, and HTTP.

Learn more about bandwidth, latency, filtering, and other properties that matter when users are accessing your application over the Internet.