![]() In order for each of these services to communicate, they each listen and communicate on a specific port. A single IP address may have many services running, such as a web server, an application server, and a file server. In TCP/IP and UDP networking, ports are endpoints for logical communications. ![]() There are various layers, protocols, and interfaces, and many tools and utilities that must be mastered to understand them. ![]() Networking is an expansive and overwhelming topic for many budding system administrators.
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