About
A network server is a service that listens on a socket for inbound connections.
Example
Web/HTTP server
A Web/HTTP Server listens for TCP connection on the HTTP/HTTPS port (80) and expects to receive in the body of the packet a HTTP request in a text format.
SMTP Server
A SMTP server listens for TCP connection on the submission port (25,487, 587) and expects to receive in the body of the packet a SMTP command, the EHLO command as first.
Create a server
NetClient
To create a simple server that will listen and write to the standard output, you can use NetClient such as:
Computer Language
With computer language, you can use a library that manages the wire for you. ie:
- presents you with the body (known as buffer), not the packet
- manage TLS/SSL (and handshake)
Example: https://netty.io/