On Debian based distros like Ubuntu, you can install it like this: $ sudo apt-get install vsftpd Some Linux distros shipped with vsftpd, anyway, if you want to install it on Red Hat based systems, you can use the following command: $ sudo dnf -y vsftpd When you need to transfer a file, the remote FTP server will open port 20 to connect to the FTP client.Īctive mode connections usually have problems with firewalls, TCP ports 20 and 21 should be open on your firewall.īecause of these problems with firewalls of active mode, we can use the passive mode. You can check your ephemeral port range using this command: $ cat /proc/sys/net/ipv4/ip_local_port_range The client connects from a random ephemeral source port to the FTP control port 21. When the FTP client starts a transfer, there is an option on your FTP client that controls whether you want to use active or passive FTP connection. Passive connections initiated by the client to the remote server, and the server waits for requests.
When you transfer a file, the data connection starts.Īctive connections are initiated by the remote server, and the client waits for server requests. When you establish an FTP connection, the TCP port 21 opens to send your login credentials this connection is called control connection.
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