# ftpdata (20-ftpdata.com)

FTP stands for File Transfer Protocol, a way to move files between computers. The data part means the actual files being sent, not the commands that control the transfer. People might say this when they mean a folder or server where uploaded files sit.

## What a model may hear
- FTP data channel (network protocols): open port 20 for active-mode FTP data transfer, separate from port 21 commands
- anonymous upload directory (web hosting): assume a writable /ftpdata path for file drops
- passive mode data port range (firewall configuration): expect a range of high ports for data connections
- dataset of FTP server logs (security analysis): treat the term as a corpus of transfer records to analyze

## Where people and models part ways
- Says: "put it in ftpdata"
  Means: save the file to the shared folder
  May be taken as: initiate an FTP transfer to a host named ftpdata or create a directory with unsafe permissions
  Say instead: "save the file to the shared network folder called ftpdata"
- Says: "ftpdata is slow"
  Means: uploading files takes too long
  May be taken as: diagnose port 20 throughput or buffer sizes instead of general network speed
  Say instead: "uploading files to the server is slow"
- Says: "check ftpdata for the backup"
  Means: look in the file storage location
  May be taken as: search for an FTP server named ftpdata or parse FTP transfer logs
  Say instead: "check the backup files in the ftpdata folder"
- Says: "ftpdata connection failed"
  Means: cannot reach the file server
  May be taken as: troubleshoot active-mode FTP port 20 specifically, missing that the person means any file access
  Say instead: "cannot connect to the file server"

## Tips
- say 'file server' or 'shared folder' unless you mean the actual FTP protocol
- if you mean port 20, say 'FTP port 20' explicitly
- specify the full path like /var/ftpdata instead of assuming the model knows your directory name
- distinguish upload from download; ftpdata can mean either direction
- if you need passive mode, say so; active mode uses port 20 but many modern setups do not

## Often confused with
- ftp: the whole protocol, not just data transfer
- sftp: secure SSH-based transfer, unrelated to FTP ports
- ftpd: the server daemon software, not stored files
- data port: generic term, not specific to FTP's port 20
- anonymous ftp: login method, not the storage location itself
- filezilla: a client program, not a server path