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Network Operating Systems-I




                    notes          3.   Enter your user name and password.
                                   4.   Click “Login” to log in to the server.

                                   5.   Browse,  in  the  server  pane,  to  the  remote  file  you  wish  to  download.  In  the  pane  of
                                       the window for the local computer, browse to the location where you wish to store the
                                       downloaded file.

                                   6.   Right-click on the file and select “Download” or “Put” to download the file.
                                   7.   Browse, in the local computer pane, to the file on your local computer that you wish to
                                       upload. In the server pane, browse to the location where you would like the file to be stored
                                       on the remote computer.
                                   8.   Right-click on the file and select “Upload” or “Put” to upload the file.
                                   9.   Exit the client to close the client and log out of the remote server.

                                   13.6 using ftp clients to test anonymous read access

                                   Anonymous FTP is the choice of Web sites that need to exchange files with numerous unknown
                                   remote users. Common uses include downloading software updates and MP3s and uploading
                                   diagnostic information for a technical support engineers’ attention. Unlike regular FTP where
                                   you login with a preconfigured Linux username and password, anonymous FTP requires only a
                                   username of anonymous and your email address for the password. Once logged in to a VSFTPD
                                   server, you automatically have access to only the default anonymous FTP directory (/var/ftp in
                                   the case of VSFTPD) and all its subdirectories.

                                   Many  computersystems  throughout  the  Internet  offer  files  through  anonymous  FTP.  This
                                   means that you can access a machine without having to have an account on that machine (i.e.
                                   you  don’t  have  to  be  an  official  user  of  the  system).  These  anonymous  FTP  servers  contain
                                   software, documents of various sorts, files  for configuring networks, graphic images, songlyrics
                                   and all sorts of other information. Archives for electronic mailing lists are often stored on and
                                   are available through anonymous FTP. An enormous amount of information is stored on these
                                   machines and is ready for anyone who’s seeking it.




                                      Note     All this is subject to change, it is a privilege and the person responsible for the
                                     machine can shut it down at any time without you being able to do anything about it.

                                   commands

                                   All the normal FTP commands may be used to retrieve files. Some FTP commands are the same
                                   on different computers, but others are not. Also, some of the ftp sites offer custom commands
                                   like getting a directory with one command, ‘regetting’ a file or searching of directories. Read the
                                   relevant README files on the site itself for the ‘special access features’.

                                   Usually, FTP will list the commands if you type ‘help’ or type a question mark (?). Also, your
                                   computer’s help command may have information about FTP. Try ‘man ftp’, ‘man ftpd’, ‘help ftp’,
                                   ‘ftp /?’, ‘ftp -?’ or ‘ftp /h’ (all these to be typed without quotes).
                                   Some useful commands available on most systems include:
                                   ascii  Switch  to  ascii  mode.  Ascii  mode  is  the  default  mode  and  used  for
                                          transferring text files binary  Switch to binary mode. For transferring
                                          binary files like .ZIP files, .Z files and the like
                                   cd     Change the directory on the remote computer



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