![]() ![]() IIS uses the port you specified in “ Data Channel Port Range” field only via secure FTP service. When I connect to the server I get: Status: Logged in Status: Retrieving directory listing. Disabled the windows firewall completely(as a test) I went to firewall settings and set my passive ports to 11 000 - 12 000 Created the port forwards on the firewall for that. Instead, it uses a random port number in the range from 1025 through 65535. I set up a brand new server 2016 VM, created a FTP server etc. Note: For the unsecure FTP service, IIS doesn’t use the port you assigned. Option A: Limit the passive FTP server port range (Recommended) On the Rule Property window, configure the following settings: Name: FTP Passive Mode FW Rule (. Then check the IIS logs in this folder: c:\inetpub\logs\LogFiles\FTPSVC2. It sends the FTP command PORT M to inform the server on. 1 We have an server in our DMZ running Windows Server 2016, with IIS are are having some issues using FTP in Passive mode from our internal network. ConfirmationĬonnect to your FTP host via an FTP client to confirm that the FTP service uses only the assigned port. In active mode, the client starts listening for incoming data connections from the server on port M. Note: If the “Data Channel Port Range” field is grayed out, make sure that you are changing the server-level settings. Using a single server port will result in having the same combination which may result in the concurrent FTP requests to be rejected. The FTP sessions are uniquely identified thanks to this combination. However, it is not recommended because using single port will limit the number of “ Client IP – Client Port – Server Port” combinations. ![]() On the Site Information page, in the FTP site name box, type a unique friendly name for the FTP site. In the Actions pane, click Add FTP Site to open the Add FTP Site wizard. ![]() Below is an article about active mode and passive mode, for your reference: Information About the IIS File Transmission Protocol. In the Connections pane, expand the server node and click the Sites node. Ive followed all the guides I can find on this website to setup my FTP server, yet Im still running into. After this change, make sure to restart “Microsoft FTP Service” ( Start > Run > services.msc).Īs you see in the example above, it is technically possible to use IIS FTP over a single port. I am running Windows Server 2008, IIS7, and FTP 7.5. The short answer is “Yes” but there is a specific format you should enter the value in.įor using IIS FTP via a specific port, go to “FTP Firewall Support” module in IIS and enter the port number twice with a dash sign (-) between in the “ Data Channel Port Range” field. This is question that could be asked: Is it possible to use a single port instead of a port range for IIS FTP? When in passive mode, IIS asks for a port range for the FTP service. ![]()
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