Hacker intrusion basic knowledge FTP command logon prompt translation

110 restart and mark the response.

120 how long is the service ready.

125 data link port is enabled and ready for transmission.

150 the File status is normal and the data connection port is enabled.

200 the command is successfully executed.

202 command execution failed.

211 system status or system help response.

212 directory status.

The status of the 213 file.

214 help message.

215 name system type.

220 new online service ready.

221 the Service's control port is closed and can be canceled.

225 Data Link is enabled, but there is no transmission action.

226 close the data connection port and the requested file operation is successful.

227 enters the passive mode.

230 user login.

250 the requested file operation is complete.

257 display the current path name.

331 the user name is correct and the password is required.

332 account information is required for logon.

350 the requested operation requires a command.

421 unable to provide services. Disable the control link.

425 the data link cannot be enabled.

426 disable online and terminate transmission.

450 the requested operation was not executed.

451 command termination: there is a local error.

452 unexecuted command: the disk space is insufficient.

500 the format is incorrect and the command cannot be identified.

501 parameter syntax error.

502 command execution failed.

503 command order error.

504 the parameters connected to the command are incorrect.

530 not logged in.

532 Account Login is required to store files.

550 the requested operation is not performed.

551 the Request command is terminated and the type is unknown.

552 the requested file is terminated and the storage space overflows.

553 the name of the requested command is incorrect.