Re: problem with pasive MODE and NAT

2004-11-17 Thread corne
Try loading two additional netfilter modules to do conection tracking for your
ftp conection called ip_conntrack_ftp and ip_nat_ftp this should sort out
your problem

Regards
Corne Alberts
Information Architect


Quoting Francisco Castillo [EMAIL PROTECTED]:

 
 Hello,
 
 I has a proftpd server on a linux debian woody with a NAT sheeme. So my
 proftpd is listening on the 192.168.0.X private ip and my router has
 mapping the ports from 4 to 40010 from the public ip to the
 192.168.0.X ip in order to allow pasive port transfers from internet. So
 i has this config on my proftpd.conf
 
 
 # para el NAT
 MasqueradeAddress   217.00.00.214
 PassivePorts 4 40010# These ports should be safe
 
 
 but i has this problem:
 
 when i connect from a cuteftp client from a 192.168.0.Y ip the client get
 the correct pasive port to get data (4) from the proftpd server but
 if i try to access from a public client ip (with cuteftp too) the server
 said to get a aleatorious port and not in the range 4-40010
 COMANDO: PASV
   227 Entering Passive Mode (217,00,00,214,238,235)).
 
 
 238,235 = 238*256 + 235 != 4-40010
 
 so i ask
 
 what could be happening?
 How could i solve my problem?
 
 Thanks in advance.
 
 -- 
 
 Hostgreen,
 http://www.hostgreen.com
 [EMAIL PROTECTED]
 tlf. 678205316 - 952431313
 id msn - [EMAIL PROTECTED]
 
 
 -- 
 
 Hostgreen,
 http://www.hostgreen.com
 [EMAIL PROTECTED]
 tlf. 678205316 - 952431313
 id msn - [EMAIL PROTECTED]
 
 
 -- 
 
 Hostgreen,
 http://www.hostgreen.com
 [EMAIL PROTECTED]
 tlf. 678205316 - 952431313
 id msn - [EMAIL PROTECTED]
 
 
 
 
 -- 
 To UNSUBSCRIBE, email to [EMAIL PROTECTED]
 with a subject of unsubscribe. Trouble? Contact
 [EMAIL PROTECTED]
 
 
 -- 
 This message has been scanned for viruses and
 dangerous content by MailScanner, and is
 believed to be clean.
 MailScanner thanks transtec Computers for their support.
 




-
This mail sent through IMP: http://horde.org/imp/

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
MailScanner thanks transtec Computers for their support.


-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]



problem with pasive MODE and NAT

2004-11-16 Thread Francisco Castillo

Hello,

I has a proftpd server on a linux debian woody with a NAT sheeme. So my
proftpd is listening on the 192.168.0.X private ip and my router has
mapping the ports from 4 to 40010 from the public ip to the
192.168.0.X ip in order to allow pasive port transfers from internet. So
i has this config on my proftpd.conf


# para el NAT
MasqueradeAddress   217.00.00.214
PassivePorts 4 40010# These ports should be safe


but i has this problem:

when i connect from a cuteftp client from a 192.168.0.Y ip the client get
the correct pasive port to get data (4) from the proftpd server but
if i try to access from a public client ip (with cuteftp too) the server
said to get a aleatorious port and not in the range 4-40010
COMANDO:   PASV
227 Entering Passive Mode (217,00,00,214,238,235)).


238,235 = 238*256 + 235 != 4-40010

so i ask

what could be happening?
How could i solve my problem?

Thanks in advance.

-- 

Hostgreen,
http://www.hostgreen.com
[EMAIL PROTECTED]
tlf. 678205316 - 952431313
id msn - [EMAIL PROTECTED]


-- 

Hostgreen,
http://www.hostgreen.com
[EMAIL PROTECTED]
tlf. 678205316 - 952431313
id msn - [EMAIL PROTECTED]


-- 

Hostgreen,
http://www.hostgreen.com
[EMAIL PROTECTED]
tlf. 678205316 - 952431313
id msn - [EMAIL PROTECTED]




-- 
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]



Re: problem with pasive MODE and NAT

2004-11-15 Thread simon
Ce jour Mon, 15 Nov 2004, Francisco Castillo a dit:

 
 
 Hello,
 
 
 when i connect from a cuteftp client from a 192.168.0.Y ip the client get
 the correct pasive port to get data (4) from the proftpd server but
 if i try to access from a public client ip (with cuteftp too) the server
 said to get a aleatorious port and not in the range 4-40010
 COMANDO:PASV
 227 Entering Passive Mode (217,00,00,214,238,235)).
 
 
 238,235 = 238*256 + 235 != 4-40010
 
 so i ask
 
 what could be happening?
 How could i solve my problem?

you can always set the daemon ACTIVE and allow traffic on port 20. i
can't remember what i did to fix that passive, but ordinarily a client
should be able to get data from the server about what the server
expects, and go on from there. proftpd-doc package has more details; the
Configure.html (or something like that) has that stuff. but it's easier
for packet filtering purposes to just allow port 20 and 21 traffic on
your gateway to the internal server.

it could also be that cuteftp is a brain-dead client implementation. i
don't use windoze s/w and haven't had a need to look that kind of stuff
up, but google might have more info on that.

othrewise, good luck :)

 Thanks in advance.
 Francisco.
 
 
 -- 
 To UNSUBSCRIBE, email to [EMAIL PROTECTED]
 with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
 

-- 
Cold pizza and cold coffee, second best thing to cold pizza and warm beer.


signature.asc
Description: Digital signature