FTP 213 File Status vs 220 Service Ready
Both FTP 213 (File Status) and 220 (Service Ready) belong to the 2xx Positive Completion category. 213 indicates that file status reply. The server provides information about a specific file, typically its size or modification time. Meanwhile, 220 means that service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
설명
File status reply. The server provides information about a specific file, typically its size or modification time.
이 코드를 보게 되는 경우
After issuing the SIZE or MDTM command, the server returns the file size in bytes or the last modification timestamp.
해결 방법
No fix needed — this is an informational response. Use the returned data to determine file size before download or to check timestamps for synchronization.
설명
Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
이 코드를 보게 되는 경우
Immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
해결 방법
No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate.
주요 차이점
FTP 213: File status reply. The server provides information about a specific file, typically its size or modification time.
FTP 220: Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
You encounter 213 when after issuing the SIZE or MDTM command, the server returns the file size in bytes or the last modification timestamp.
You encounter 220 when immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
언제 어떤 것을 사용할지
For 213 (File Status): No fix needed — this is an informational response. Use the returned data to determine file size before download or to check timestamps for synchronization. For 220 (Service Ready): No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate.