FTP 120 Service Ready Soon vs 200 Command OK
FTP 120 (Service Ready Soon) is a 1xx Positive Preliminary response, while 200 (Command OK) 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, 200 means that the command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
Description
The service will be ready in a certain number of minutes. The server is not yet available but expects to be shortly.
When You See It
When connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
How to Fix
Wait the indicated number of minutes and try connecting again. If the server never becomes ready, contact the server administrator.
Description
The command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
When You See It
After issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
How to Fix
No fix needed — the command succeeded. This is the standard positive response for commands that don't return data.
Key Differences
120 is a 1xx Positive Preliminary response, while 200 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 200: The command has been successfully executed. This is a general acknowledgment that the command was understood and carried out.
You encounter 120 when when connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
You encounter 200 when after issuing any command that completes successfully, such as TYPE, MODE, or NOOP.
When to Use Which
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 200 (Command OK): No fix needed — the command succeeded. This is the standard positive response for commands that don't return data.