FTP

FTP 202 Command Superfluous vs 502 Command Not Implemented

FTP 202 (Command Superfluous) is a 2xx Positive Completion response, while 502 (Command Not Implemented) is a 5xx Permanent Negative response. 202 indicates that the command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect. In contrast, 502 means that command not implemented. The server recognizes the command but does not support it in its current configuration.

Açıklama

The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.

Gördüğünüzde

When you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.

Nasıl Düzeltilir

No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue.

Açıklama

Command not implemented. The server recognizes the command but does not support it in its current configuration.

Gördüğünüzde

When you use a valid FTP command that this particular server has not implemented, such as SITE or SMNT.

Nasıl Düzeltilir

Use an alternative command or approach. Check the server's FEAT response or HELP output to see which commands are actually supported.

Temel Farklar

1.

202 is a 2xx Positive Completion response, while 502 is a 5xx Permanent Negative response.

2.

FTP 202: The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.

3.

FTP 502: Command not implemented. The server recognizes the command but does not support it in its current configuration.

4.

You encounter 202 when when you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.

5.

You encounter 502 when when you use a valid FTP command that this particular server has not implemented, such as SITE or SMNT.

Hangisini Ne Zaman Kullanmalı

For 202 (Command Superfluous): No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue. For 502 (Command Not Implemented): Use an alternative command or approach. Check the server's FEAT response or HELP output to see which commands are actually supported.

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