FTP

FTP 214 Help Message vs 227 Entering Passive Mode

Both FTP 214 (Help Message) and 227 (Entering Passive Mode) belong to the 2xx Positive Completion category. 214 indicates that help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command. Meanwhile, 227 means that entering Passive Mode. The server provides an IP address and port number for the client to connect to for data transfer, formatted as (h1,h2,h3,h4,p1,p2).

Description

Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.

Quand vous le voyez

After issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.

Comment résoudre

No fix needed — this is an informational response. Use it to discover which commands the server supports.

Description

Entering Passive Mode. The server provides an IP address and port number for the client to connect to for data transfer, formatted as (h1,h2,h3,h4,p1,p2).

Quand vous le voyez

After issuing the PASV command. The server switches to passive mode and tells the client where to connect for data transfer.

Comment résoudre

No fix needed — parse the IP and port from the response to establish the data connection. If connections fail, check NAT/firewall rules on the passive port range.

Différences clés

1.

FTP 214: Help message. The server provides information about its implementation status, including a list of recognized commands or help for a specific command.

2.

FTP 227: Entering Passive Mode. The server provides an IP address and port number for the client to connect to for data transfer, formatted as (h1,h2,h3,h4,p1,p2).

3.

You encounter 214 when after issuing the HELP command. The server returns a list of supported commands or detailed usage for a specific command.

4.

You encounter 227 when after issuing the PASV command. The server switches to passive mode and tells the client where to connect for data transfer.

Quand utiliser lequel

For 214 (Help Message): No fix needed — this is an informational response. Use it to discover which commands the server supports. For 227 (Entering Passive Mode): No fix needed — parse the IP and port from the response to establish the data connection. If connections fail, check NAT/firewall rules on the passive port range.

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