Proftpd server passive requests

Dan Shoop shoop at iwiring.net
Sun Mar 28 19:40:34 PST 2004


At 5:25 PM -0500 3/28/04, Richard Peskin wrote:
>I would be interested in learning of anyone's experience using 
>ProFTPD 1.2.9 with IPFIlter "on" under a 10.3.3 Panther server. My 
>experience is as follows:
>1. With IPFiltering off, ProFTPD handles passive (really EPSV) 
>requests correctly.
>2. With IPFiltering on passive requests cause the server to stall, 
>and perhaps drop the connection. (An ipfw rule to send incoming port 
>20,21 requests to a range of non-critical ports is normally used for 
>passive requests.)

Well this isn't a good way to handle filtering for passive FTP, and 
you can see why.

>So far the only way around this problem I can see is to use a 
>hardware firewall and not use IPFiltering on the server.

Many of us have been expounding that over and over and over...

A Mac does not make a good firewall.
-- 

-dhan

------------------------------------------------------------------------
Dan Shoop                                              shoop at iwiring.net
Consulting Internet Architect                              shoop at mac.com
AIM: iWiring                                     http://www.iwiring.net/

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