FTP 213 File Status vs 450 File Action Not Taken
FTP 213 (File Status) is a 2xx Positive Completion response, while 450 (File Action Not Taken) is a 4xx Transient Negative response. 213 indicates that file status reply. The server provides information about a specific file, typically its size or modification time. In contrast, 450 means that requested file action not taken. The file is unavailable due to being busy, locked by another process, or temporarily inaccessible.
คำอธิบาย
File status reply. The server provides information about a specific file, typically its size or modification time.
เมื่อคุณพบเห็น
After issuing the SIZE or MDTM command, the server returns the file size in bytes or the last modification timestamp.
วิธีแก้ไข
No fix needed — this is an informational response. Use the returned data to determine file size before download or to check timestamps for synchronization.
คำอธิบาย
Requested file action not taken. The file is unavailable due to being busy, locked by another process, or temporarily inaccessible.
เมื่อคุณพบเห็น
When you try to access a file that is locked by another user or process, or when the server temporarily cannot process the file.
วิธีแก้ไข
Wait and retry the operation — the file may be locked by another transfer. If persistent, check server-side file locks and permissions.
ความแตกต่างหลัก
213 is a 2xx Positive Completion response, while 450 is a 4xx Transient Negative response.
FTP 213: File status reply. The server provides information about a specific file, typically its size or modification time.
FTP 450: Requested file action not taken. The file is unavailable due to being busy, locked by another process, or temporarily inaccessible.
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 450 when when you try to access a file that is locked by another user or process, or when the server temporarily cannot process the file.
ควรใช้อันไหนเมื่อไร
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 450 (File Action Not Taken): Wait and retry the operation — the file may be locked by another transfer. If persistent, check server-side file locks and permissions.