FTP

FTP 110 Restart Marker Reply vs 211 System Status

FTP 110 (Restart Marker Reply) is a 1xx Positive Preliminary response, while 211 (System Status) is a 2xx Positive Completion response. 110 indicates that the server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted. In contrast, 211 means that system status or system help reply. The server provides information about its current status or available features.

Description

The server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted.

When You See It

During a resumed file transfer when the server confirms the restart position in the data stream.

How to Fix

No fix needed — this is a normal response during transfer recovery. If restarts keep failing, verify the marker format matches what your client expects.

Description

System status or system help reply. The server provides information about its current status or available features.

When You See It

After issuing the STAT command without arguments, the server returns its system status and supported features.

How to Fix

No fix needed — this is an informational response. Use the information to understand the server's capabilities and current state.

Key Differences

1.

110 is a 1xx Positive Preliminary response, while 211 is a 2xx Positive Completion response.

2.

FTP 110: The server is sending a restart marker reply. The text is exact and not left to interpretation. This marker is used to indicate the point at which a file transfer should be restarted.

3.

FTP 211: System status or system help reply. The server provides information about its current status or available features.

4.

You encounter 110 when during a resumed file transfer when the server confirms the restart position in the data stream.

5.

You encounter 211 when after issuing the STAT command without arguments, the server returns its system status and supported features.

When to Use Which

For 110 (Restart Marker Reply): No fix needed — this is a normal response during transfer recovery. If restarts keep failing, verify the marker format matches what your client expects. For 211 (System Status): No fix needed — this is an informational response. Use the information to understand the server's capabilities and current state.

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