My study notes (1) FTP

Learning notes, starting from here...

FTP works on the application layer.Program, The Internet standard used for file transmission .... the file transfer provided by FTP is a complete file copied from one system to another .... similar to telnet, it is used for two hosts that use different file systems and different file systems. However, the heterogeneity of telnet is that both ends are forced to be uniform. The same standard is used: nvt with 7-bit ASCII code, FTP uses another method to handle differences between different systems. FTP supports a limited number of file types (ASCII, binary, etc.) and file structures (for byte streams or records)