DP 7 Review Tutorial 6

FTP = file transfer protocol

predecessor to the web

Download = the process of transferring files from a server to a PC

Upload = the process of transferring files from a PC to a server

An ftp site = a location on a server containing files that are allocated to a specific user.

Some ftp sites have a URL that starts with ftp:// . Files are organized in directories (folders). The outermost directory is the root directory. A directory that is available to the public is often named “pub”.

An ftp session = When the user accesses files within his ftp site on the server that hosts his ftp site. This can be done in many ways: ftp client program, command line interface, browser. If a user can upload and download to a site then he has “full-privilege” FTP access. Usually a userid and password are required for full-privilege access.

An anonymous FTP session = an ftp session that does not require a userid. The word “anonymous” is inserted when a userid is requested. These sessions are used to access ftp sites that are accessible to the public.

zipped files = files that are stored in a compressed form. Must be decompressed with a file compression/decompression program (like winzip). Many files that are available for download are compressed or zipped.

Files should be checked for viruses after they are downloaded. Virus detection software does this (like Norton antivirus).

Telnet Client – a windows program that uses Telnet protocol to access a remote computer. A telnet session can also be initiated from a web site (like the Columbia library web site).

Download sites are web sites (http:// ) that contain links to software available for downloading. Clicking on a link will automatically start the download. Two popular download sites are shareware.com and download.com. Software that is commonly downloaded: patches, zip-programs, anti-virus programs, ftp client programs, Adobe Acrobat Reader, etc.

Tracing an Internet root - hops