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File transfer protocol (FTP)
If users access the website by using FTP, ensure that the folder has delete, overwrite, and rename privileges enabled.
When anonymous FTP is used, these options are typically disabled by default so that users cannot update pages or
add new pages to the website.
If you will use FTP to connect to a website, Adobe recommends that you use SFTP. In addition to providing a secure
connection when you transfer files to and from Contribute and your website, SFTP is a more reliable connection
protocol. To learn more about SFTP, and the benefits it provides, see "Secure FTP" on page 19.
When you create an FTP connection, Contribute attempts to auto-detect the FTP path, checking that the FTP folder
is the same folder that contains your website files. If the folder paths don't match, Contribute can't write to the page
displayed by your browser and prompts you to enter the correct path.
To ensure that you are entering the correct FTP path, click Browse in the Connection wizard to locate and select the
FTP folder. If the path to the folder is correct but Contribute still can't create a connection, verify that the folder has
proper read, write, and modify permissions for the user. If you are creating an anonymous FTP account, the server
must be configured to support delete, rename, and overwrite permissions for the anonymous user. In some cases,
file permissions on UNIX servers may be configured in a way that prevents Contribute from operating, especially if
the server doubles as a file server. For more information, see "Setting up a site connection in Contribute" on the
Contribute Support Center.
To test whether FTP is set up correctly for an end user, you can transfer a test web page to the server. Then, using the
login settings you provide to the user, attempt to view the page in a browser.
Secure FTP
SFTP is a secure version of the FTP protocol. Like SSH, SFTP prevents unauthorized users from gaining access to
password and user information that is sent without encryption over the Internet.
Standard FTP sends the user ID and password as clear (that is, unencrypted) text, allowing anyone monitoring your
FTP data to see your user ID and password, as well the data being transmitted. With SFTP, everything you transmit
is encrypted, protecting it from monitoring by intruders.
In addition to increased security, Adobe recommends that you use SFTP because it's a more robust protocol that
provides more reliable performance. The following reasons describe why SFTP is a better protocol:
• A more strict protocol than FTP
• Supports functionality that FTP does not
• Is more efficient than FTP
• Does not conflict with firewalls, proxy servers, or routers
• Provides a secure connection over which to transfer files
To use SFTP with Contribute, you must have an SFTP server installed. You cannot use a standard FTP server and
select SFTP from the connection type choice in Contribute; the connection fails. You must also have Secure Shell 2
(SSH2) enabled on the server. Contribute provides SFTP only over SSH2-protected network connections.
To learn more about SFTP, see the documentation supplied with your server's operating system and SFTP server. To
learn more about SSH2, see the SSH Communications Security website at www.ssh.com.
Note: Contribute supports only password-based authentication. Other authentication methods, such as certificate-based
authentication, public key, and Kerberos, are not supported.
ADOBE CONTRIBUTE CS3
19
User Guide
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