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- c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
- SPDX-License-Identifier: curl
- Long: ftp-port
- Arg: <address>
- Help: Use PORT instead of PASV
- Short: P
- Protocols: FTP
- See-also: ftp-pasv disable-eprt
- Category: ftp
- Example: -P - ftp:/example.com
- Example: -P eth0 ftp:/example.com
- Example: -P 192.168.0.2 ftp:/example.com
- Added: 4.0
- Multi: single
- ---
- Reverses the default initiator/listener roles when connecting with FTP. This
- option makes curl use active mode. curl then tells the server to connect back
- to the client's specified address and port, while passive mode asks the server
- to setup an IP address and port for it to connect to. <address> should be one
- of:
- .RS
- .IP interface
- e.g. "eth0" to specify which interface's IP address you want to use (Unix only)
- .IP "IP address"
- e.g. "192.168.10.1" to specify the exact IP address
- .IP "host name"
- e.g. "my.host.domain" to specify the machine
- .IP "-"
- make curl pick the same IP address that is already used for the control
- connection
- .RE
- .IP
- Disable the use of PORT with --ftp-pasv. Disable the attempt to use the EPRT
- command instead of PORT by using --disable-eprt. EPRT is really PORT++.
- You can also append ":[start]-[end]\&" to the right of the address, to tell
- curl what TCP port range to use. That means you specify a port range, from a
- lower to a higher number. A single number works as well, but do note that it
- increases the risk of failure since the port may not be available.
- (Added in 7.19.5)
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