- socks5 support
- supports user name + password in proxy environment variables
- operations through proxy "tunnel" (using CONNECT)
+ - supports transfers of large files (>2GB and >4GB)
HTTP
- HTTP/1.1 compliant (optionally uses 1.0)
- all operations can be tunneled through a http-proxy
- customizable to retrieve file modification date
+FTPS (*1)
+ - explicit ftps:// support that use SSL on both connections
+ - implicit "AUTH TSL" and "AUTH SSL" usage to "upgrade" plain ftp://
+ connection to use SSL for both or one of the connections
+
TELNET
- connection negotiation
- custom telnet options