Tools
504 FTP response code
A 504 response code can be sent in response to any command using a parameter that is not supported by the server. It is a permanent negative response, which means the client is discouraged from sending the command again since the server will respond with the same response code. Issuing the same command with a different parameter may result in a different response code.
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Overview
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Resolution
A 504 response code can be sent in response to any command using a parameter that is not supported by the server. It is a permanent negative response, which means the client is discouraged from sending the command again since the server will respond with the same response code. Issuing the same command with a different parameter may result in a different response code.
Example response
504 Command not implemented for that parameter.
Possible commands
- ALLO - see ALLO FTP command
- AUTH - see AUTH FTP command
- HOST - see HOST FTP command
- MODE - see MODE FTP command
- PROT - see PROT FTP command
- STRU - see STRU FTP command
- TYPE - see TYPE FTP command