FTP 120 Service Ready Soon vs 125 Data Connection Open
Both FTP 120 (Service Ready Soon) and 125 (Data Connection Open) belong to the 1xx Positive Preliminary category. 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. Meanwhile, 125 means that the data connection is already open and the transfer is beginning. No need to open a new data connection.
Description
The service will be ready in a certain number of minutes. The server is not yet available but expects to be shortly.
Quand vous le voyez
When connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
Comment résoudre
Wait the indicated number of minutes and try connecting again. If the server never becomes ready, contact the server administrator.
Description
The data connection is already open and the transfer is beginning. No need to open a new data connection.
Quand vous le voyez
When the server reuses an existing data connection for a file transfer instead of opening a new one.
Comment résoudre
No fix needed — the transfer is starting immediately. Your client should begin reading or writing data on the existing connection.
Différences clés
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 125: The data connection is already open and the transfer is beginning. No need to open a new data connection.
You encounter 120 when when connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
You encounter 125 when when the server reuses an existing data connection for a file transfer instead of opening a new one.
Quand utiliser lequel
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 125 (Data Connection Open): No fix needed — the transfer is starting immediately. Your client should begin reading or writing data on the existing connection.