The most common application protocols are as follows:
- HTTP
- HTTPS
- E-mail protocols (SMTP, POP3, IMAP)
- FTP
- TFTP
- SIP
- RTP
HTTP
Hypertext Transfer Protocol (HTTP) is the primary protocol used across the Internet between a browser and a Web server, which is a process known as Web browsing.
When a client PC (Web browser) makes a request, the type of request will determine the destination port number used. Websites are often listening on TCP port 80, a well-known port identifying the HTTP . . .
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