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Build an FTP Site on IIS

Published: February 29, 2012

Updated: February 29, 2012

Applies To: Windows Server 2012, Windows Server 2012 R2



File Transfer Protocol (FTP) simple is a protocol for transferring files between computer systems. IIS 8 includes an FTP server that is easy to configure.

The document shows how to install and configure the FTP server on an existing IIS 8 web server. The first two steps are required. All other steps are optional but recommended.

In this document

To get the most from this tutorial, you must have access to a computer that runs one of the following operating systems:

  • Windows Server® 2012

  • Windows® 8

This step shows you how to install the FTP service on an existing IIS web server that runs on either Windows Server 2012 or Windows 8.

  1. On the Start screen, click the Server Manager tile, then click Yes.

  2. In the Server Manager Dashboard, click Add roles and features.

  3. If the Before you begin page of Add Roles and Features Wizard is displayed, click Next.

  4. On the Select installation type page, select Role-based or feature-based installation, and click Next.

  5. On the Select destination server page, select Select a server from the server pool, select your server from the Server Pool list, and then click Next.

  6. On the Select server roles page, expand the Web Server (IIS) node, and then expand the FTP Server node.

  7. Select the FTP Server check box and the FTP Service check box, and then click Next.

  8. On the Select features page, click Next.

  9. On the Confirm installation selections page, click Install.

  1. On the Start screen, type Control Panel, and then click the Control Panel icon in the search results.

  2. Click Programs, and then click Turn Windows features on or off.

  3. In the Windows Features dialog box, expand the Internet Information Services node.

  4. Expand the FTP Server node.

  5. Select the FTP Server check box and the FTP Service check box, and then click OK.

Once the FTP service is installed on your IIS web server, you can add one or more FTP sites. Add an FTP site when you want to enable clients to transfer files to and from a site by using the File Transfer Protocol (FTP).

noteNote
Because FTP settings are contained in the sites section, changing any FTP setting also forces website application recycling. If you want to avoid this side effect, add a site that is configured exclusively for FTP, instead of for both HTTP and FTP.

  1. Open IIS Manager.

  2. In the Connections pane, expand the server node and click the Sites node.

  3. In the Actions pane, click Add FTP Site to open the Add FTP Site wizard.

  4. On the Site Information page, in the FTP site name box, type a unique friendly name for the FTP site.

  5. In the Physical path box, type the physical path or click the browse button (...) to locate the physical path of the content directory.

  6. Click Next to open the Binding and SSL Settings page.

  7. Under Binding, in the IP Address list, select or type an IP address if you do not want the IP address to remain All Unassigned.

  8. In the Port box, type the port number.

  9. Optionally, in the Virtual Host box, type a host name if you want to host multiple FTP sites on a single IP address. For example, type www.contoso.com.

  10. Clear the Start FTP site automatically box if you want to start the site manually.

  11. Under SSL, from the SSL Certificate list, select a certificate. Optionally, click View to open the Certificates dialog box and verify information about the selected certificate.

  12. Select one of the following options:

    • Allow SSL: Allows the FTP server to support both non-SSL and SSL connections with a client.

    • Require SSL: Requires SSL encryption for communication between the FTP server and a client.

  13. Click Next to open the Authentication and Authorization Information page.

  14. Under Authentication, select the authentication method or methods that you want to use:

    • Anonymous: Allows any user to access content providing only the user name anonymous or ftp. (Most, but not all, FTP clients enter user name for you automatically.)

    • Basic: Requires users to provide a valid user name and password to access content. Because Basic authentication transmits unencrypted passwords across the network, use this authentication method only when you know that the connection between the client and FTP server is secure, such as by using Secure Sockets Layer (SSL).

  15. Under Authorization, from the Allow access to list, select one of the following options:

    • All Users: All users, whether they are anonymous or identified, can access the content.

    • Anonymous Users: Anonymous users can access the content.

    • Specified Roles or User Groups: Only members of certain roles or user groups can access the content. Type the role or user group in the corresponding box.

    • Specified Users: Only specified users can access the content. Type the user name in the corresponding box.

  16. If you selected an option from the Allow access to list, select one or both of the following permissions:

    • Read: Permits authorized users to read content from the directory.

    • Write: Permits authorized users to write to the directory.

  17. Click Finish.

Change an FTP site default value when you want new FTP sites to use a different default value.

noteNote
When you change a default value, existing sites are not overridden with the new value. Change the value for any existing sites manually.

  1. Open IIS Manager.

  2. In the Connections pane, click the server node and the Sites node.

  3. In the Actions pane, click FTP Site Defaults.

  4. Edit the settings, and then click OK.

The following table lists the settings available for configuration in the FTP Site Defaults dialog box.

 

Setting Category Setting Name Description

General

Allow UTF-8

Specifies whether to use UTF8 encoding. Default is true.

General

Start Automatically

If true, the FTP site is started upon creation or when the FTP service is started. Default is true.

Connections

Control Channel Time-out

Specifies the time-out (in seconds) when a connection times out due to inactivity.

Connections

Data Channel Time-out

Specifies the time-out (in seconds) when the data channel times out due to inactivity.

Connections

Disable Socket Pooling

Specifies whether socket pooling is used for sites distinguished by IP address rather than port number or host name.

Connections

Max Connections

Specifies the maximum simultaneous connections to a server.

Connections

Reset On Max Connections

Specifies whether to disconnect FTP session when sending max connections response.

Connections

Server Listen Backlog

Specifies the number of outstanding sockets that can be queued.

Connections

Unauthenticated Time-out

Specifies the timeout (in seconds) between when a new connection is made and authentication succeeds.

Credential Caching

Enabled

Specifies whether credential caching is enabled for the FTP service.

Credential Caching

Flush Interval

Specifies the cache lifetime, in seconds, for the credentials that are stored in the cache.

File Handling

Allow Reading Files While Uploading

Specifies whether files can be read while being transferred to the server.

File Handling

Allow Replace on Rename

Specifies whether files can overwrite other files when renamed.

File Handling

Keep Partial Uploads

Specifies whether to keep files that have been partially uploaded.

Use the FTP Firewall Support feature to configure the following settings that enable the FTP server to accept passive data connections from a firewall:

  • Data Channel Port Range: Specify a range of ports for passive data connections. You must also open that same range of ports on your firewall. This option can only be configured at the server-level, and the port range of “0-0” means to use the ephemeral port range of the server. An ephemeral port is a short-lived transport protocol port that TCP/IP allocates from a predefined range.

  • External IP Address of Firewall: Specify the external IP address of your firewall so that clients know which IP address to use when they communicate with the FTP server through the firewall.

  1. Open IIS Manager.

  2. In the Connections pane, select the server node.

  3. In Features View, double-click FTP Firewall Support.

  4. In the Data Channel Port Range box, type a range of port numbers (separated by a hyphen). For example, type 5000-6000. Or type 0-0 to use the default port range specified in Windows TCP/IP settings.

    noteNote
    Do not use ports 0-1024 because these ports are reserved ports.

  5. In the External IP Address of Firewall box, type the IP address of your firewall.

  6. In the Actions pane, click Apply.

The user isolation feature allows you to configure your FTP server to isolate users, which prevents users from accessing the directories of other users on the same FTP site. If you choose not to isolate users, they share a common directory structure.

For example, you can choose not to isolate users on a site that offers only download capabilities for shared content or for a site that does not require the protection of data between users.

If you want to isolate users on your site, you can choose one of the following isolation options:

  1. User name directory: Isolates user sessions to the physical or virtual directory with the same name of the FTP user account. The user sees only their FTP root location and is, therefore, restricted from navigating higher up the physical or virtual directory tree. Any global virtual directories that are created are ignored.

  2. User name physical directory: Isolates user sessions to the physical directory with the same name of the FTP user account. The user sees only their FTP root location and is, therefore, restricted from navigating higher up the physical directory tree. Any global virtual directories that are created apply to all users.

  3. FTP home directory configured in Active Directory: Isolates user sessions to the home directory that is configured in the Active Directory account settings for each FTP user.

  1. Open IIS Manager.

  2. In Features View, double-click FTP User Isolation.

  3. If you don’t want to isolate users, under Do not isolate users. Start users in, select one of the following options:

    • FTP root directory: specifies that all FTP sessions start in the root directory for the FTP site. This option disables all user isolation and starting folder logic.

    • User name directory: specifies that all FTP sessions start in the physical or virtual directory with the same name of the currently logged-on user if the folder exists; otherwise, the FTP session starts in the root directory for the FTP site.

  4. If you want to isolate users, under Isolate users. Restrict users to the following directory, select one of the following options:

    • User name directory (disable global virtual directories): isolates user sessions to the physical or virtual directory with the same name of the FTP user account.

    • User name physical directory (enable global virtual directories): isolates user sessions to the physical directory with the same name of the FTP user account.

    • FTP home directory configured in Active Directory: isolates user sessions to the home directory that is configured in the Active Directory account settings for each FTP user.

    • Custom: This option is an advanced feature, and enables developers to create custom providers that provide home directory lookups based on their unique business needs.

  5. If you selected FTP home directory configured in Active Directory in the previous step, click the Set button, and then type a user name and password in the User name and Password boxes of the Set Credentials dialog box that has access to your Active Directory server. Enter the password again in the Confirm Password box, then click OK.

  6. In the Actions pane, click Apply.

The directory browsing feature gives you control over what is displayed when users browse FTP directories.

  1. Open IIS Manager.

  2. In the Connections pane, select either the server level or the site level.

  3. In Features View, double-click FTP Directory Browsing.

  4. On the FTP Directory Browsing page, under Directory Listing Style, select one of the following options:

    • MS-DOS: Displays directory content in a manner consistent with MS-DOS.

    • UNIX: Displays directory content in a manner consistent with UNIX.

  5. Under Directory Listing Options, select the information you want to display in directory listings. You can select any of the following options:

    1. Virtual directories: Shows virtual directories.

    2. Available bytes: Displays file size in bytes.

    3. Four-digit years: Displays years by using four digits rather than two.

  6. In the Actions pane, click Apply.

This feature enables you to configure the maximum number of failed sign-on attempts that you allow within a specified time before the IP address is denied.

  1. Open IIS Manager.

  2. In the Connections pane, select the server level.

  3. In Features View, double click FTP Logon Attempt Restrictions.

  4. On the FTP Logon Attempt Restrictions page, select the Enable FTP Logon Attempt Restrictions check box.

  5. In the Maximum number of failed login attempts box, type a positive integer. The default value is 4.

  6. In the Time period (in seconds) box, type a positive integer. The default is 30.

  7. Select either Deny IP addresses based on the number of failed login attempts or Write to the log only. If you choose Write to the log only, IIS will not restrict clients even if the maximum number of failed attempts is exceeded.

  8. In the Actions page, click Apply.

Use the FTP Request Filtering feature page to define the request filtering settings for your FTP site. FTP request filtering is a security feature that allows internet service providers (ISPs) and application service providers to restrict protocol and content behavior.

  1. Open IIS Manager.

  2. In the Connections pane, select either the server level or the site level.

  3. In Feature View, double click the FTP Request Filtering icon.

  4. To change the general request filtering settings, click Edit Feature Settings in the Actions pane. Then edit the general settings as required.

  5. To add a filter based on file name extensions, select the File Name Extension tab. In the Actions pane, click either Allow File Name Extension or Deny File Name Extensions. Then type the extension in the File name extension box, and click OK.

  6. To add a filter based on a URL segment (for example, a folder name), select the Hidden Segments tab. In the Actions pane, click Add Hidden Segment. Then type the segment in the Hidden segment box, and click OK.

  7. To add a filter based on a URL sequence, select the Denied URL Sequences tab. In the Actions pane, click Add URL Sequence. Then type the sequence in the URL sequence box, and click OK.

  8. To add a filter based on a command, select the Commands tab. In the Actions pane, click either Allow Command or Deny Command. Then type the command in the Command box, and click OK.

    WarningWarning
    The ability to add a command-based filter is an advanced feature. If you use this feature incorrectly, you could deny access to all FTP clients on your server.

You can use the FTP Logging feature to configure logging features at the server or site level, and to configure logging settings.

  1. Open IIS Manager.

  2. In the Connections pane, select either the server level or the site level.

  3. In Feature View, double click the FTP Logging icon.

  4. In the One log file per menu, select either Site or Server.

  5. Under Log File, click Select W3C Fields, and then select the information you want go log.

  6. Under Directory, either type the path to the base folder where you want the FTP log files stored, or click Browse to browse to the base folder.

  7. Under Encoding, select either UTF8 (single-byte and multi-byte characters) or ANSI (single-byte characters only).

  8. Under Log File Rollover, select how you want FTP to create new log files from the following list:

    1. Schedule: select Hourly, Daily, Weekly, or Monthly to create new log files on a fixed time interval.

    2. Maximum file size (in bytes): enter a positive integer to create new log files when the file size exceeds that number of bytes.

    3. Do not create new log files

  9. Select the Use local time for file naming and rollover check box when you want log file naming and rollover to be based on the local time zone instead of Coordinated Universal Time (UTC).

  10. In the Actions pane, click Apply.

Use the FTP Messages feature to modify the settings for messages sent when a user connects to your FTP site.

  1. In the Connections pane, select either the server level or the site level.

  2. In Features View, double-click FTP Messages.

  3. On the FTP Messages page, under Message Behavior, select how you want your FTP messages to behave. You can select any of the following options:

    1. Suppress default banner: Specifies whether to display the default identification banner for the FTP server.

    2. Support user variables in messages: Specifies whether to display a specific set of user variables in FTP messages. The following user variables are supported:

      • %BytesReceived% - The number of bytes sent from the server to the client for the current session.

      • %BytesSent% - The number of bytes sent from the client to the server for the current session.

      • %SessionID% - The unique identifier for the current session.

      • %SiteName% - The name of the FTP site that is hosting the current session.

      • %UserName% - The account name of the currently logged-on user.

    3. Show detailed messages for local requests: Specifies whether to display detailed error messages when the FTP client is connecting to the FTP server on the server itself (local host).

  4. Under Message Text, type messages in the following boxes:

    1. Banner: Specifies the message the FTP server displays when FTP clients first connect to the FTP server.

    2. Welcome: Specifies the message the FTP server displays when FTP clients have logged in to the FTP server.

    3. Exit: Specifies the message the FTP server displays when FTP clients log off the FTP server.

    4. Maximum Connections: Specifies the message the FTP server displays when clients try to connect and cannot because the FTP service has reached the maximum number of client connections allowed.

  5. In the Actions pane, click Apply.

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