Date: Fri, 13 Apr 2012 11:04:40 +0100 From: "Dave B" <dave@g8kbv.demon.co.uk> To: freebsd-questions@freebsd.org Subject: Re: FTP oddness, over SSH session. Message-ID: <4F87FA38.18304.34FEE4@dave.g8kbv.demon.co.uk> In-Reply-To: <4F8640B3.5070108@herveybayaustralia.com.au> References: <4F857029.25481.F2968A@dave.g8kbv.demon.co.uk>, <4F8640B3.5070108@herveybayaustralia.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
On 12 Apr 2012 at 12:40, Da Rock wrote: > On 04/11/12 21:51, Dave B wrote: > > FreeBSD FBSD.67MK181QZ 8.0-RELEASE FreeBSD 8.0-RELEASE #0: > > Wed Apr 14 22:55:09 BST 2010 > > root@FBSD.67MK181QZ:/usr/obj/usr/src/sys/PPSGENERIC i386 > > > > Hi. > > > > I have a small FreeBSD 8.0 system (above, yes I know, not current, > > but it works.) That is mainly used for timekeeping with an attached > > PPS equipped GPS. No problems with that. > > > > It also has a small web server (Hiawatha) FTP server and SSH portal, > > for my own use. > > > > The FTP "server" is the built-in OS based ftpd implementation, and > > works well for all that I need. > > > > Anyway... I found a while ago, that I can tunnel connections into > > my home LAN via a SSH session to my FreeBSD box, from outside the > > LAN using PuTTY (on Windows XP) from wherever I am. It's been a > > useful dodge for me to do that so as to VNC to other boxes that are > > there. The needed SSH working port, is not the usual suspect, it's > > way up high, well away from script kiddies etc. > > > > I just found however, that though I can reliably send a file to the > > FTP server and it get's saved just fine, that's not true when > > connecting this way using a SSH tunnel. > > > > Over the SSH session, (using Passive Mode, with all needed ports > > forwarded, plus the FTP daemon's data port usage restricted to the > > same range as those tunneled.) Though the FTP process appears to > > work OK, with no errors, the file sent to and deposited on the > > server ends up as name only, and zero bytes in length. > > > > Oddly, I can successfully create a new folder on the FTP server over > > the SSH session using the FTP client, and that works just fine. > > > > The FTP client I'm using, is the same FileZilla both times. > > (V3.1.0.1 I may go look for any updates, just in case.) > > > > Downloading works fine regardless of how I connect, it's just > > uploading that's screwey. I suspect (as usual) it's a rights issue, > > but even if I su - root after the initial SSH login, it changes > > nothing. > > I'd check the ports you are forwarding over ssh. Two ports are > required for ftp and it sounds like one is blocking for some reason- > the control channel seems to be working fine though :) As I suspect too, but as yet, I've not figured it out. I can as above download files just fine, so the data channel can be established for that, and I am using Passive Mode, so it *Should* be only my end (the client) that initiates a connection for the data channel. Also, two versions of FileZilla *Appear* to succeed uploading a file, no errors regarding being unable to setup a data channel, just that when you look on the FreeBSD box later, the file is zero bytes in size. Regards. Dave Baxter.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4F87FA38.18304.34FEE4>