Fork of the https://github.com/ftpproxy/ftp.proxy repository with added support for the NLST command.
ftp.proxy is an application level gateway for FTP. It sits between a client and a server forwarding command and data streams supporting a subset of the file transfer protocol as described in RFC 959.
Beside this basic function which makes the program useful on firewall or masqueraders it offers fixing the FTP server (e.g. for connections into a protected LAN) and proxy authentication.
ftp.proxy offers external access control programs (ACP), that is an external program decides if a user can use the proxy service or not. This decision can be made on username, host name, day of time etc. Since version 1.0.1 ftp.proxy supports also command control programs. Similar to ACPs the CCPs permit or deny access to certain FTP commands on the server, e.g. it's possible to allow a user to get files but to deny any kind of uploads.
Same old story:
make
make install
If you like to compile ftp.proxy on a SystemV OS (like Solaris) please uncomment the following
two lines in src/Makefile:
OSFLAG = -DSOLARIS
OSLIB = -lnsl -lsocket
For BSD like systems you must use gmake instead of make!
On MacOS X is could be necessary to change the compiler setting in src/Makefile to:
CC = cc
Note: You must have gnu make and gcc installed on your system.
After you sucessfully built and installed the daemon, you add an
entry to your system's inetd.conf depending on your needs:
- clientside server selection:
ftp stream tcp nowait nobody /usr/sbin/tcpd /usr/local/sbin/ftp.proxy -e
- clientside server selection with enhanced logging:
ftp stream tcp nowait nobody /usr/sbin/tcpd /usr/local/sbin/ftp.proxy -e -l -m
- only to one particular FTP-Server:
ftp stream tcp nowait nobody /usr/sbin/tcpd /usr/local/sbin/ftp.proxy my.outside.server
For xinetd this must work (example):
service ftp
{
socket_type = stream
wait = no
user = nobody
server = /usr/local/sbin/ftp.proxy
server_args = -e -m
}
If you like to seprate the ftp.proxy log messages from the other stuff,
try something like this in your syslog.conf:
*.*;ftp.none -/var/log/messages
ftp.* /var/log/ftp
ftp.proxy has some advanced features not found in other FTP proxies:
advanced access control, command control and monitor mode. They are
explained in the manpage.
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