what is port 990 SG Ports Services and Protocols Port 990 tcp udp information official and unofficial assignments known security risks trojans and applications use
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 Port 990 is used specifically for FTPS providing an additional layer of security by encrypting the file transfer session This port is commonly used by organizations that require compliance with strict security standards such as those in the financial or healthcare sectors
what is port 990
what is port 990
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Synopsis for TCP port 990 Internet TCP port 990 is primarily used for FTPS File Transfer Protocol Secure services FTPS is an extension to the commonly used FTP protocol that adds support for the Transport Layer Security TLS and the The default Implicit port is 990 after handshake it will switch automatically to 989 for data transmission if not configured differently While port 21 is generally accepted as EXPLICIT FTPS and 990 as IMPLICIT FTPS in reality whichever port you will configure except 990 989 will lead to EXPLICIT FTPS while ONLY 990 989 will be accepted
Ports 989 and 990 need to be open Furthermore FTPS supports both active and passive modes see FTP which further complicates firewall configurations and is prone to problems FTPS requires an X 509 certificate for the server typically from a public certificate authority Port 990 is typically used for secure FTP FTPS transmission using SSL TLS It is a port for implicit FTPS which means that the FTP server expects all incoming connections to be encrypted by SSL TLS from the beginning of the session
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The first method is called the implicit method in which the client connects to the server s port 990 which offers only encrypted sessions and after logging in another channel for data is opened over other ports depending on the server s mode HTTP over SSL is often called HTTPS and FTP over SSL is often called FTPS and has two variants explicit starts as an unencrypted FTP session and is secured on client request and implicit is secured right from the beginning and therefore needs a
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what is port 990 - Synopsis for TCP port 990 Internet TCP port 990 is primarily used for FTPS File Transfer Protocol Secure services FTPS is an extension to the commonly used FTP protocol that adds support for the Transport Layer Security TLS and the