Welcome to the feature list of
jftpgw FTP proxy 0.13.5
Last update: Sat Jun 5 21:55:29 CEST 2004
Joachim Wieland
General Features
  • jftpgw is free in the sense of the GNU General Public License
Features related to the daemon
  • jftpgw uses a powerful and flexible configuration model instead of cryptic commandline switches. See the page on the configuration for further details
  • Regular users can run the proxy server on unprivileged ports as well
  • jftpgw runs as a daemon or from the inetd/xinetd superserver.
  • If run as root, it drops the privileges. (anybody familiar with writing programs run as root? I am not!)
  • Active as well as passive FTP transfers (the mode between the client and the proxy may differ from the mode between proxy and real ftp server). You may specify port ranges to use for active and passive transfers. This accounts for ports jftpgw listens on as well as for source ports jftpgw uses when connecting to the server/client
  • jftpgw is able to act as a transparent proxy. You may also configure the proxy to display the welcome message of the remote server you want to connect to
  • You can cache transfers from an FTP server. This is pretty nice if several computers fetch the same file from an FTP server (e.g. if you're updating your distribution)
User authentication features
  • Various login strings are possible. You can even use another ftp proxy between jftpgw and the real FTP server
  • You can pretend to run a real ftp server and forward the connection to another server (see forward/passallauth option)
  • Other forward (UserAlias) features are also possible. So you may specify an alias for a user with a password and jftpgw logs in to the real server as another user with another password. That way you are able to create accounts on the real machine by adding accounts to the jftpgw proxy.
  • There is a variety of proxy authentication styles so you can use the proxy with almost every client that supports proxy mode since it is quite probable that jftpgw supports the one the client supports. (See option loginstyle).
Possibilities to restrict users
  • Access control features: Use any combination of user name, client IP, destination host, destination port and the time of day to create access/deny lists.
  • Specify how many users are allowed to log in at the same time
  • The throughput rate can be throttled
  • Logging of connection attempts
  • Several logfile options are provided: You can specify the issued commands that you want to have logged in one or more files (with different sets of commands for each file) as well as one logfile for each ftp session
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