FTP 215 System Type vs 228 Entering Long Passive Mode
Both FTP 215 (System Type) and 228 (Entering Long Passive Mode) belong to the 2xx Positive Completion category. 215 indicates that the NAME system type, where NAME is an official system name from the list in the Assigned Numbers document. Reports the operating system of the server. Meanwhile, 228 means that entering Long Passive Mode. An extended version of passive mode that supports longer addresses, including IPv6. Largely superseded by EPSV (229).
Descrição
The NAME system type, where NAME is an official system name from the list in the Assigned Numbers document. Reports the operating system of the server.
Quando você o vê
After issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
Como corrigir
No fix needed — use this information to adjust path separators and line endings for the server's OS type.
Descrição
Entering Long Passive Mode. An extended version of passive mode that supports longer addresses, including IPv6. Largely superseded by EPSV (229).
Quando você o vê
After issuing the LPSV command on servers that support long addresses. Rarely seen in practice as EPSV is preferred.
Como corrigir
No fix needed, but consider using EPSV (Extended Passive Mode) instead, which is more widely supported and simpler to parse.
Diferenças principais
FTP 215: The NAME system type, where NAME is an official system name from the list in the Assigned Numbers document. Reports the operating system of the server.
FTP 228: Entering Long Passive Mode. An extended version of passive mode that supports longer addresses, including IPv6. Largely superseded by EPSV (229).
You encounter 215 when after issuing the SYST command. The server reports its operating system type, commonly 'UNIX Type: L8' or 'Windows_NT'.
You encounter 228 when after issuing the LPSV command on servers that support long addresses. Rarely seen in practice as EPSV is preferred.
Quando usar qual
For 215 (System Type): No fix needed — use this information to adjust path separators and line endings for the server's OS type. For 228 (Entering Long Passive Mode): No fix needed, but consider using EPSV (Extended Passive Mode) instead, which is more widely supported and simpler to parse.