FTP 220 Service Ready vs 229 Entering Extended Passive Mode
Both FTP 220 (Service Ready) and 229 (Entering Extended Passive Mode) belong to the 2xx Positive Completion category. 220 indicates that service ready for new user. This is the greeting message sent by the FTP server when a client first connects. 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
Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
Quando você o vê
Immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
Como corrigir
No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate.
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 220: Service ready for new user. This is the greeting message sent by the FTP server when a client first connects.
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 220 when immediately upon connecting to an FTP server. This is the welcome banner confirming the server is accepting connections.
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 220 (Service Ready): No fix needed — the server is ready. Proceed with USER and PASS commands to authenticate. 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.