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- FTP access using a FTP client
Use a FTP client to get read-write access to the anonymous FTP server or to specific FTP accounts.
Most Unix or Unix-like systems feature the ftp command:

Connect to ftp.esrf.fr (or ftp.esrf.eu) and log in as user anonymous. Provide your e-mail address as password. If you have a specific FTP account on the ESRF FTP server, provide your credentials (user name and password).
Once logged in, use the FTP commands such as cd or dir to navigate in the directory tree, get to download (read) a file, put to upload (write) a file. Please note that put is available from inside ESRF only.
Windows also provides the ftp command. The easiest is to open a command Window (the cmd command), then use ftp as on a Unix-like system:

The Windows ftp command is identical to the Unix command.
You may also use a graphical client. On Windows, a popular FTP software is Filezilla:

Connection parameters are the same than with the ftp command: server name is ftp.esrf.fr (or ftp.esrf.eu), and user is either anonymous (for anonymous FTP access) or your own credentials if you have a specific FTP account.
From outside ESRF, ftp.esrf.fr and ftp.esrf.eu are strictly identical.
From inside ESRF, use ftp.esrf.eu to get the same access as if you were outside ESRF. Use ftp.esrf.fr to get the internal access to the FTP server, detailed in internal documentation.