> Per suggestions from the list, I tried setting Pure-FTPD. I used the "-P > ext.nat.ip.addr" argument, and that seemed to make things work (at least > from the first external host I tested from). Well... mostly. It seems that > most networks can correctly interface with my port 20 FTP data channel, but > not all. > > Ironically, the user for whom I set the server up in the first place, is the > one that reported this to me: when he tries to FTP from home, it does the > port 20 hang; when he FTPs from work, it works just fine. Oddly enough, he's > using his notebook computer at both places, and therefore using the same FTP > client and settings.
Is he behind a firewall at home, and trying to use passive FTP? David S. > > I also ran into a variant of this problem at work. I can access 21 on my FTP > server, but not 20. Yet, I can access both 20 and 21 on other hosts. > > It's a mind bender. > > -tom >
