FTP 120 Service Ready Soon vs 220 Service Ready
FTP 120 (Service Ready Soon) is a 1xx Positive Preliminary response, while 220 (Service Ready) 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, 220 means that service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
説明
The service will be ready in a certain number of minutes. The server is not yet available but expects to be shortly.
このコードが表示される場合
When connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
解決方法
Wait the indicated number of minutes and try connecting again. If the server never becomes ready, contact the server administrator.
説明
Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
このコードが表示される場合
Immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
解決方法
No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate.
主な違い
120 is a 1xx Positive Preliminary response, while 220 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 220: Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
You encounter 120 when when connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
You encounter 220 when immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
どちらをいつ使うか
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 220 (Service Ready): No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate.