how do you open a port for a ftp server other than port 21?

Question

no router and a program is currently using port 21, so i guess i have to use port 22.

i'm using ws_ftp, and using firewall.
on the firewall, i opened port 22 but still no help.

and yes, i have selected alternate ports in the ftp program

Answer 1

FTP uses 2 ports. 20 and 21. Both need to be open.

Unless you can select alternate ports within the FTP app, you can't use other ports.

Answer 2

TCP Port 21 consumer-friendly Use FTP service is typically is server the place you upload/acquire documents from. Inbound test in case you're working a FTP server and have forwarded port 21 on your firewall then you certainly might desire to setup a port forward interior of link Logger such that destiny inbound site visitors in this port would be logged as everyday and not as an alert. There are scans which seek for FTP Servers, the two nameless or with susceptible passwording or have vulnerabilities. additionally some virus or trojans use FTP to acquire factors. Outbound test with the help of default link Logger will boost an indicators on outbound site visitors to this port with a view to alert directors to apply of unauthorized FTP servers. Servers could be relied on such that destiny site visitors to the approved FTP server won't look as an alert. -------------------------------- Port type 21 is a reserved port in TCP/IP networking, which ability that's listed with IANA. Port 21 is utilized with the help of the report flow Protocol for FTP administration site visitors. FTP clientele initiate up an FTP consultation with the help of connecting to port type 21 on the FTP server. An FTP server responds from port 21 with messages that instant the shopper for an FTP consultation login (username and password). be conscious that FTP clientele do no longer use port 21, in basic terms the server. FTP servers additionally do no longer deliver documents from port type 21. instead, the FTP protocol helps a 2nd connection to be wide-unfold for documents flow. Port 21 represents the server-area of a "administration" or "command" connection while the commerce server port represents the "documents" connection.