In networking FTP uses both ports 21 and 22.
Implicit FTPS runs on port 990 by default.
TCP has no default port. Individual applications - such as FTP, DNS, or Telnet - do have default ports.
The default FTP port is 21. But most FTP server software allows you to set which ever port you want.
Students and professors will be unable to Telnet to the server or FTP files to or from the server
FTP The service used over FTP is Filetransfer..!!
Usually its port 21. Though alot of people fail to realise that just because that's the default setting doesn't mean you cant change it. FTP servers listen on port 21. The data transfers happen on a different port, which is usually done in passive mode, on a port above 1024.
22
The packet header source IP address and TCP header source port number
Generally port 21 is for FTP 22 for FTP using SSH 990 FTP using SSL
Usually, if you change the port in a server's configuration file, you will have to stop and restart its daemon or service for the changes to take effect. Changing the FTP port would not stop access, butyou would probably have to specify the port manually on any FTP client.
The protocol is FTP and the port number 21 conquerorthecomputer.blogspot.com
To change the port number of FTP, you need to adjust the configuration settings in the FTP server software. This typically involves editing the server's configuration file (like vsftpd.conf for vsftpd or proftpd.conf for ProFTPD) to specify the desired port number, usually under a directive like Port. After making the change, restart the FTP server for the new settings to take effect. Additionally, ensure that any firewalls or network settings allow traffic on the new port.