Need help with FTP Redhat Firewall problem.
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Recently a Linux guy (Now moved away) setup a Linux Redhat Firewall server
connected to a Cable Modem for our Windows PC's to share Internet etc.

Now the Browsing is ok and Email is ok, but we are having problems with FTP.
We can connect ok to the IP Address and the username/password verifies ok,
but then we get a message saying eg:-
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500 I won't open a connection to 192.168.0.13 (only to 60.226.143.244)
! Failed "port":
! Retrieve of folder listing failed (0)
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Note:- I am on the Windows pc getting the IP Address 192.168.0.13 .
Now i tried passive mode using the same ftp port 21 and same problem.
The linux guy said we have to mod the IP Tables somewhere, but he is
not exactly sure where to do it to allow us to FTP from local windows pc's.?
I have included the full error message ftp log below. I found the IPTables
File on the Linux box, but have no idea what to do there. Any help would
be greatly appreciated.

(Full FTP Log Error).
WINSOCK.DLL: WinSock 2.0
WS_FTP LE 5.08 2000.01.13, Copyright © 1992-2000 Ipswitch, Inc.
- -
connecting to 216.58.174.154:21
Connected to 216.58.174.154 port 21
220---------- Welcome to Pure-FTPd [privsep] ----------
220-You are user number 2 of 50 allowed.
220-Local time is now 19:31. Server port: 21.
220 You will be disconnected after 15 minutes of inactivity.
USER inventco
331 User inventco OK. Password required
PASS (hidden)
230-User inventco has group access to: ftponly
230 OK. Current restricted directory is /
PWD
257 "/" is your current location
SYST
215 UNIX Type: L8
Host type (S): UNIX (standard)
PASV
227 Entering Passive Mode (216,58,174,154,111,145)
connecting to 216.58.174.154:28561
- -
connecting to 216.58.174.154:28561
! Connection failed 216.58.174.154 - connection timed out
! connect: error 0
PORT 192,168,0,13,4,76
500 I won't open a connection to 192.168.0.13 (only to 60.226.143.244)
! Failed "port":
! Retrieve of folder listing failed (0)

Not IP Tables but "iptables". This is the firewall setup.

You can run "iptables -L" to see current setup.

There ought to be a line in your output that is showing the allowed IP you got in the message. Editing the rule (or adding another like it) for the new IP should do it.

Failing that you could just turn off iptables temporilly then turn it back on after the ftp has completed. On my RedHat I'd do this with:

service iptables stop
--then--
serivce iptables start

Cheers i will give that a go.

Thankz in advance