Re: ftp problem

[Athena <linux@xxxxxxxxxxxx>]

On Thu, 21 Sep 2000, M K Saravanan wrote:

> this is w.r.t. my earlier mail regd. ftp problem.
> 
> /* earlier mail */
> 
> I am using ipchains in the linux server  to provide Internet connection to
> our Intranet.  I am not able to do ftp or wget in any of the system
> connected to Intranet except the server which is running ipchain. But if i
> do ftp using gftp or thru browser i am able to download the
> files.  somewhere i studied that ftp needs to open a data connection with
> the target m/c.  
> 
> Qn.1) If that is the reason why i am not able to connect to ftp
> from intranet?  what is the sol. for this?
> 
> Qn.2)  in that case why it is possible thru browser or gftp?
> 
> /* end of earlier mail */
> 
> 
> Now if i use --passive-ftp in wget it is working.  but if i use passive
> mode in gftp i am getting the following error message:
> 
> 227 Entering Passive Mode (209,202,197,152,224,238) Cannot create a data
> connection: No route to host Cannot put file /mksbm.txt to ftp.tripod.com
> Disconnecting from site ftp.tripod.com
> 
> 
> what could be the problem?
> 
> ** mks **
> 
        Are you using ip forwarding and is the module for ftp loaded. With
masquarading and ip forwarding turned on, it is possible to use normal
ftp. (Normally ftp requires two connections, one for control and another
for data and the data connection is started from the other end and so
normally if you are behind a firewall, you can't use ftp, but ofcourse you
can use passive mode of ftp). 

-George Samuel  

---
Visit our home page at: www.chennailug.org
Send e-mail to 'ilugc-request@xxxxxxxxxxxxxxxxxx' with 'unsubscribe' 
in either the subject or the body to unsubscribe from this list.