FTP 202 Command Superfluous vs 229 Entering Extended Passive Mode
Both FTP 202 (Command Superfluous) and 229 (Entering Extended Passive Mode) belong to the 2xx Positive Completion category. 202 indicates that the command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect. Meanwhile, 229 means that entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.
Descrição
The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
Quando você o vê
When you send a command the server recognizes but considers unnecessary, such as ALLO on a server that does not require pre-allocation.
Como corrigir
No fix needed — the server is telling you the command is not necessary. You can safely ignore this response and continue.
Descrição
Entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.
Quando você o vê
After issuing the EPSV command. The server responds with a port number in the format (|||port|) for the client to connect to.
Como corrigir
No fix needed — connect to the server's control IP on the provided port. If it fails, try falling back to PASV (227) or check firewall rules.
Diferenças principais
FTP 202: The command is not implemented but is recognized as superfluous. The server acknowledges the command but it has no effect.
FTP 229: Entering Extended Passive Mode. The server provides only a port number for the data connection, using the same IP as the control connection. Works with both IPv4 and IPv6.
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.
You encounter 229 when after issuing the EPSV command. The server responds with a port number in the format (|||port|) for the client to connect to.
Quando usar qual
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 229 (Entering Extended Passive Mode): No fix needed — connect to the server's control IP on the provided port. If it fails, try falling back to PASV (227) or check firewall rules.