http://www.flashfxp.com/support.asp?Sect=howto  How-To's
 If you are trying to set up an FTP server to allow FXP, the below information may help depending on what FTP server you
 are using. Most Windows FTP servers allow FXP by default, while some Unix servers are a bit more cranky.  Contents:
Configure ProFTPD to allow FXP
Configure wu-ftpd to allow FXP
 
 Configure ProFTPD to allow FXP (Site to Site file transfers)
Requirements: ProFTPD 1.2.0rc3
You can download the latest version from www.proftpd.org Information provided by Jeremy Truelove
To support FXP when connecting as a user place "AllowForeignAddress on" in the Global or VirtualHost context.
To support FXP when connecting as anon "AllowForeignAddress on" must be placed in the Anonymous context.
The config will happily support "AllowForeignAddress on" in multiple places within the config..
You may need to add the following "PassivePorts 49152 65534"
 Configure wu-ftpd to allow FXP (Site to Site file transfers)
Requirements: wu-ftpd 2.6.0
You can download the latest version from www.wu-ftpd.org Information provided by Jon Fox
/etc/ftpaccess
 First, we need to add an additional class for users that are allowed to do FXP (unless you just want to use the predefi
ned class "all"). If you add a new class, this line MUST be before the catch-all class "all", or the client will match c
lass "all" first.  The line is of the form: class <ArbitraryClassName> <AccessTypes> <HostAddrs> [HostAddrs]
 Then we add lines to allow PASV and PORT commands to hosts whose IPs don't match the client (to allow FXP)
 These lines are of the form:
port-allow <ArbitraryClassName> <HostAddrs>
pasv-allow <ArbitraryClassName> <HostAddrs>
 And now to put it into practice - a real example
 class newclass real,guest,anonymous *.mydomain.net
*.more.client.addresses.com
class all real,guest,anonymous *
 port-allow newclass 0.0.0.0/0
pasv-allow newclass 0.0.0.0/0
 This basically adds a new class (creatively called "newclass") - note that it appears BEFORE the line containing the cl
ass "all" - this new class contains all hosts in the subdomains mydomain.net and more.client.addresses.com (domains obvi
ously made up by yours truly), in order to limit who we will allow to do FXP. The port-allow and pasv-allow lines basica
lly allow FXP connections to anywhere if your client is in the class "newclass".    : 섭 투 섭..이라 하던데.. :
: FXP를 proftpd에서 지원하는지 알고 싶습니다.
:
: http://proftpd.oops.org/ 에 가서 reference를 찾아 봤는데도
:
: 그와 관련된 내용을 못찾겠더라구요..
:
: 고수님들의 조언 부탁 드립니다.
:
: --
: 열심히 ...열심히..