4 ms·
They seem to always leave off port 20 is also ftp.
by IronWolve 3y ago
They seem to always leave off port 20 is also ftp.
- grepfru_it 3y agoIt’s just a data channel. This changed with nat and the introduction of the PASV command which allowed the client to set a non-well known port for the data channel
- oarsinsync 3y ago> the introduction of the PASV command which allowed the client to set a non-well known port for the data channel PASV instructs the server to specify another ip:port that it’s listening on to enable the client to connect. PORT expects there to be an open port on the client for the server to connect to.