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To know exactly what ports you will need to open, you will need to either: a) talk to the vendor to get specifics about how their system has been configured. b) Use a protocol analyzer, such as tcpdump or wireshark, to look at the traffic, both from outside your firewall and inside your firewall.
13 Ιουν 2023 · FTP Server Secure (FTP SSL Traffic-in): FTP over SSL uses TCP port 990, and this rule opens it. To do so, open Windows Defender Firewall with Advanced Security, switch to the list of incoming rules, and enable them using the Enable Rule command.
5 Μαρ 2024 · FTPS typically uses port 990 for control connections and port 989 for data connections under implicit security. However, FTPS can also use port 21 when operating under explicit security. Learn more about the difference between FTPS vs HTTPS for secure file transfers.
You may want to install a secure FTP server on Windows either as standalone file storage or to have means of editing your website hosted on IIS (Internet Information Services) web server. In both cases, you can use an optional FTP Server component of the IIS.
20 Φεβ 2024 · Active FTP generally uses TCP port 20 (for data) and 21 (for control) on the server side by default, which would explain why only the data transfer isn't working. Depending on your environment, some firewalls may only block FTP traffic once it starts transferring data, rather than block the ports outright. – Cpt.Whale.
FTPS (also known as FTP Secure and FTP-SSL) is an extension to the commonly used File Transfer Protocol (FTP) that adds support for the Transport Layer Security (TLS) cryptographic protocol (previously known as the Secure Sockets Layer – SSL). 1. Methods of Invoking. Explicit. Implicit. TLS/SSL Certificates. Advertisement. Methods of Invoking.
26 Αυγ 2015 · Normal FTP uses port 21(TCP/UDP) for control and port 20(TCP/UDP) for data. FTP over TLS (FTPS) uses port 990(TCP/UDP) for control and port 989(TCP/UDP) for data. You will need to open both as FTPS prevents the router from detecting which port was negotiated for the data transfer. Hope this helps.
