Hello,
I want more info on the FXP protocol in particular.
I am coding a client that will need to fxp from multiple sites.
Basically:
This client will connect to multiple servers and transfer files from
all the servers to one server at the same time.Is this possible?
If so how would i go about doing it?
If you cant find much info on this then dont expect a tip (just kidding) ;p
I also want more indepth of FXP and how exactly it works with as many
examples as possible.Is FXP possible without use of the PASV command?
If it isnt which side needs to do the PASV and when? Is there a
workaround?
I want more info on FTP uploads/downloads too( Info on PASV as well as PORT)
When using the PORT command how many simentanious connections will be
allowed to that one port?
Is there a way to redirect a ftp direction in the middle of the
transfer using a system like www.linuxvirtualserver.org?
As much information as possible on both inbound and outbound FXP
transfers and FTP downloads as well as uploads.
Thank you.
As always detailed + quick answer = big tip.

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Request for Question Clarification by joseleon-ga on 18 Jan 2004 08:42 PST

Hello, w00t:
  In which language are you developing such client? Just in case I
need to post some code samples. Here is the resume of what I
understand you need:

-It is possible to make multiple FXP transfers at a time from several
servers to a single location? If so, how?
-In depth explanation on how FXP works. It will work without PASV?
-As much information as possible regarding FTP uploads, downloads, PASV, PORT, etc.
-Information about redirect transfers, and something about linuxvirtualserver.

Is that correct? 

Regards.

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Clarification of Question by w00t-ga on 18 Jan 2004 09:15 PST

-It is possible to make multiple FXP transfers at a time from several
servers to a single location? If so, how?
I want all the transfers to appear as though they are comming in from
one location.(which is why i mentioned www.linuxvirtualserver.org)
Basically what im trying to create is:
client sends a 100mb file to main server.
main server gets file size and divides it by N.
N being the number of slave servers that are there in the clients hdd.
The File is split into that many parts.
Each part is sent to one server on the slave servers list.(hence many
simultanious connections hence very fast transfer) then the file is
re-assembled by the main server.
Now this is all well and good if its plain FTP.
Im trying to find a solution for FXP.
How would i go about making the site im FXP'ing FROM think that its
sending to one server when actually its sending 10 mb chunks(if the
file is 100mb) to 10 different servers?
The site im FXP'ing from shouldnt know that its sending to 10
different servers(hence my emntion of www.linuxvirtualserver.org)
Very confusing.
The client will be coded in VB or C/C++.Post codes in any of them.
---
-In depth explanation on how FXP works. It will work without PASV?
Yes since i cant use PASV with ftp clusters.
---
-Information about redirect transfers, and something about linuxvirtualserver.
Yes i want to know whether it is possible to redirect a ftp transfer
in the middle of the transfer.
--
All the systems will be running redhat linux.
They can be made to run freebsd if it will be simpler.
--
The client will be using windows.
Thank you.
A good answer = atleast 75% of the question price as tip.
Also some URL's for you to look at:
http://drftpd.mog.se/ - It does something similar to what i want
except i cant start multiple simultaneous transfers at the same time
and divide the file server side but it works with the master/slave
approach which is what i want.
Thats about it.
I understand that it is all probably very confusing.

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Request for Question Clarification by joseleon-ga on 19 Jan 2004 15:16 PST

Hello, w00t:
  I'm working on an answer, but I'm not going to lock this question,
so I post this clarification to let know other researchers can also
answer it, is a very wide topic and can take me several days to come
up with a thorought response, maybe another researcher can help you
faster.

Regards.

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Clarification of Question by w00t-ga on 21 Jan 2004 03:02 PST

Answer as quickly as you can ;)
I would gladly tip you the full question amount if the answer is good.
Thank you.