Video Description

Protocols, FTP, TFTP, SFTP, SMTP, POP3 an IMAP This lesson focuses on ports that use the TCP and UDP communications protocol. This lesson discusses the following protocols: File Transfer Protocol (FTP): This is a TCP protocol and there is no encoding or overhead, it is insecure. Trivial File Transfer Protocol (TFTP): This is a UDP protocol which allows us to send to multiple clients at once. Secure File Transfer Protocol (SFTP): This is a TCP protocol that encrypts with Secure Shell (SSH) and is more secure than FTP. This lesson also discusses the following mail protocols:

  • Simple Mail Transfer Protocol (SMTP): Uses TCP; e mail between servers and from Outlook.

  • Post Office Protocol 3 (POP3): Uses TCP; e mail comes from client download from server. Typically copies and deletes.

  • IMAP: uses TCP, downloads from server to client and keeps a copy of the message on the server, it has more configuration ability than a POP3.

Course Modules

CompTIA Network+