![]() I get error in FileZilla: Connection attempt. The differences in these connections depend on active vs. Hi, I have a strange problem, I have opened port 21 on my internet facing router however Im able to use FTP. Depending on the configuration, FTP may use only port 21 or both 20 and 21. It also says not logged in even though I have triple-checked the username and password for the account. Despite being commonly described as port 21 traffic, FTP can also use TCP ports 20 and 21 for a successful connection. 9 beg your pardon - used wrong user in putty :-(now I get: xinetd is running. and check that ftp port is open with lsof -i tcp:21. "Connected on port 990, sending welcome message." Maybe port 21 is firewalled or proftpd servise is stopped for some reason on Plesk. I set up a few Windows Firewall rules and even disabled the firewall temporarily to see if that was causing the problem, but it still would not connect.Įvery time I try to connect externally it either times out, or says: I am able to connect to the server on a computer within my network, however, if I try to connect to it from outside my network, even though I have port forwarded ports 21,90-51000 (Passive ports) it still will not let me connect from outside. FTP provides different control commands like User, PASS, ACCT, CWD, CDUP, SMNT, etc. I am using ports: 50000-51000 for passive ports. The port 21 is used to control FTP sessions and data transmission. ![]() Every other post about this topic says the person mysteriously found this problem fixed the next day. For example, if an FTP server uses port 21 for control and then 5000 to 5010 for data. I have tried setting up an FTPS server to share uncut footage faster than sending it through Gmail. File Transfer Protocol (FTP) servers require multiple ports to. ![]()
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