FTP 120 Service Ready Soon vs 426 Connection Closed
FTP 120 (Service Ready Soon) is a 1xx Positive Preliminary response, while 426 (Connection Closed) is a 4xx Transient Negative 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, 426 means that connection closed; transfer aborted. The data connection was closed unexpectedly during a file transfer.
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
Connection closed; transfer aborted. The data connection was closed unexpectedly during a file transfer.
Cuándo lo verás
When a file transfer is interrupted due to a network timeout, client disconnect, or the data connection dropping mid-transfer.
Cómo solucionarlo
Retry the transfer. If it keeps failing, check network stability, increase timeout values, and verify there are no firewalls killing idle connections.
Diferencias clave
120 is a 1xx Positive Preliminary response, while 426 is a 4xx Transient Negative 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 426: Connection closed; transfer aborted. The data connection was closed unexpectedly during a file transfer.
You encounter 120 when when connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
You encounter 426 when when a file transfer is interrupted due to a network timeout, client disconnect, or the data connection dropping mid-transfer.
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 426 (Connection Closed): Retry the transfer. If it keeps failing, check network stability, increase timeout values, and verify there are no firewalls killing idle connections.