FTP 120 Service Ready Soon vs 530 Not Logged In
FTP 120 (Service Ready Soon) is a 1xx Positive Preliminary response, while 530 (Not Logged In) is a 5xx Permanent 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, 530 means that not logged in. The user is not authenticated and must log in before the requested command can be executed.
描述
The service will be ready in a certain number of minutes. The server is not yet available but expects to be shortly.
何时出现
When connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
如何修复
Wait the indicated number of minutes and try connecting again. If the server never becomes ready, contact the server administrator.
描述
Not logged in. The user is not authenticated and must log in before the requested command can be executed.
何时出现
When you try to access files or run commands before authenticating, or after providing incorrect login credentials.
如何修复
Send USER and PASS commands with valid credentials. If login fails repeatedly, verify the username, password, and check if the account is locked.
主要区别
120 is a 1xx Positive Preliminary response, while 530 is a 5xx Permanent 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 530: Not logged in. The user is not authenticated and must log in before the requested command can be executed.
You encounter 120 when when connecting to an FTP server that is starting up or temporarily busy with maintenance tasks.
You encounter 530 when when you try to access files or run commands before authenticating, or after providing incorrect login credentials.
何时使用哪个
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 530 (Not Logged In): Send USER and PASS commands with valid credentials. If login fails repeatedly, verify the username, password, and check if the account is locked.