FTP 120 Service Ready Soon vs 229 Entering Extended Passive Mode
FTP 120 (Service Ready Soon) is a 1xx Positive Preliminary response, while 229 (Entering Extended Passive Mode) is a 2xx Positive Completion response. 120 indicates that the service will be ready in a certain number of minutes. The server is not yet available but expects to be shortly. In contrast, 229 means that entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.
Descripción
The service will be ready in a certain number of minutes. The server is not yet available but expects to be shortly.
Cuándo lo verás
When connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
Cómo solucionarlo
Wait the indicated number of minutes and try connecting again. If the server never becomes ready, contact the server administrator.
Descripción
Entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.
Cuándo lo verás
After issuing the EPSV command. The server responds with a port number in the format (|||port|) for the client to connect to.
Cómo solucionarlo
No fix needed — connect to the server's control IP on the provided port. If it fails, try falling back to PASV (227) or check firewall rules.
Diferencias clave
120 is a 1xx Positive Preliminary response, while 229 is a 2xx Positive Completion response.
FTP 120: The service will be ready in a certain number of minutes. The server is not yet available but expects to be shortly.
FTP 229: Entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.
You encounter 120 when when connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
You encounter 229 when after issuing the EPSV command. The server responds with a port number in the format (|||port|) for the client to connect to.
Cuándo usar cada uno
For 120 (Service Ready Soon): Wait the indicated number of minutes and try connecting again. If the server never becomes ready, contact the server administrator. For 229 (Entering Extended Passive Mode): No fix needed — connect to the server's control IP on the provided port. If it fails, try falling back to PASV (227) or check firewall rules.