WebApr 30, 2012 · TCP/UDP. Port Number. Description. File Transfer Protocol (FTP) (RFC 959) TCP. 20/21. FTP is one of the most commonly used file transfer protocols on the Internet … The File Transfer Protocol (FTP) is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network. FTP is built on a client–server model architecture using separate control and data connections between the client and the server. FTP users may … See more The original specification for the File Transfer Protocol was written by Abhay Bhushan and published as RFC 114 on 16 April 1971. Until 1980, FTP ran on NCP, the predecessor of TCP/IP. The protocol was later replaced … See more Communication and data transfer FTP may run in active or passive mode, which determines how the data connection is established. … See more HTTP essentially fixes the bugs in FTP that made it inconvenient to use for many small ephemeral transfers as are typical in web pages. FTP has a stateful control connection which maintains a current working directory and other … See more FTPS Explicit FTPS is an extension to the FTP standard that allows clients to request FTP sessions to be encrypted. This is done by sending the "AUTH TLS" command. The server has the option of allowing or denying … See more FTP login uses normal username and password scheme for granting access. The username is sent to the server using the USER … See more Web browser Most common web browsers can retrieve files hosted on FTP servers, although they may not support protocol extensions such as See more FTP was not designed to be a secure protocol, and has many security weaknesses. In May 1999, the authors of RFC See more
【网络原理】TCP/IP协议_奋斗小温的博客-CSDN博客
WebApr 11, 2024 · Overview of common TCP and UDP default ports · SMTP - 25 · HTTP - 80 · HTTPS - 443 · FTP - 20, 21 · TELNET - 23 · IMAP - 143. TRENDING: ITIL-4-Foundation Exam Dumps PDF Latest Update Download... AZ-104 Exam Dumps Real Latest AZ-104 Question & An... Cisa Dumps Update Exam Question & Answer Braindump... WebJan 29, 2024 · Because file transfers over TCP take so long even with higher bandwidth, UDP has become the standard for accelerated file transfer. FTP and other TCP-based file transfer systems rely on a … fn playground 3
12 common network protocols and their functions explained
WebSep 14, 2005 · FTP itself uses the TCP transport protocol exclusively, or in other words, it never uses UDP for its transport needs. Typically an application layer protocol will use one or the other. One notable ... WebHTTP is used to access websites. FTP transfers file from one one host to another. HTTP establishes data connection only. FTP establishes two connection one for data and one for the control connection. HTTP uses TCP's port number 80. FTP uses TCP's port number 20 and 21. If you are using HTTP, http will appear in URL. WebMar 16, 2011 · 6. TCP guarantees (in-order) packet delivery. UDP doesn't. TCP - used for traffic that you need all the data for. i.e HTML, pictures, etc. UDP - used for traffic that doesn't suffer much if a packet is dropped, i.e. video & voice streaming, some data channels of online games, etc. Share. fnp jobs in new mexico