Re: FTP question


"John Wunderlich" <jwunderlich@xxxxxxxxx> wrote in message
news:Xns9B4FDCB8E4406wunderpsdrscray@xxxxxxxxxxxxxxxx
| "RoseW" <wdmn@xxxxxxxxxxxxxxxx> wrote in
| news:#Vl2LhVQJHA.576@xxxxxxxxxxxxxxxxxxxx:
|
| > I have one server that has had connectivity issues this past week
| > when I connect with FTP software. Initially last Saturday the
| > directory list became unavailable in FileZilla after months of
| > use. I tried FlashXp software and got the directory listing by
| > turning of MLSD and using Stat -L but files will not transfer (426
| > connection closed,transfer aborted) . I have been in contact with
| > the support section of the server but the suggestions are more
| > directed at trying yet another ftp software. I'm certainly getting
| > familiar with FTP error codes and I'm on the 4th software. I'm
| > connected to the FTP directory but not in contact with the files.
| > (425 can't open data) or an error about the socket connection.
| > I'm on a satelite style (ppoe) internet connection which has its
| > own modem and a Linksey router using Xp 64bit system. I wondered
| > about sidestepping the router and hooking the satelite modem
| > directly to the computer but that doesn't seem logical since I can
| > connect to another server and upload files.
|
| I assume that you are successfully connecting/logging into the server
| but run into connection problems when you try to list a directory or
| transfer files. In my experience, two things can cause this problem.
|
| One is a MTU problem. As this is the first time that "big" packets
| are transferred in the protocol, a MTU setting that is too big can
| cause packet fracturing and a failed connection. You can use
| "DrTCP" to set your MTU at a conservative 1300 and see if it helps.
| <http://www.dslreports.com/faq/tweaks/4._MTU>
| <http://www.dslreports.com/drtcp>
| But since you can successfully FTP from other sites, this is not
| likely your problem.
|
| The other area is "Active" vs "Passive" mode FTP. Since you are
| behind a NAT router, unless you properly set up port forwarding in
| your router and configure FileZilla to reply with your external IP
| address, your only practical option is to use Passive Mode (the most
| common method). If you use the Site Manager in Filezilla, you can
| configure the mode of each site you connect to. Make sure you are
| selecting Passive mode for your trouble server. If you aren't using
| Site Manager, make sure Edit->Preferences->Connection->FTP is set to
| Passive. If the trouble server doesn't support Passive mode or it is
| itself behind a NAT router this makes things even more difficult.
| Ironically, if this server does insist on using Active mode, the
| other thing you can do is to disconnect your router and connect your
| computer directly into the modem and then select "Active FTP" in
| Filezilla. Active FTP mode stands a chance of working in this
| configuration.
|
| There is lots of info on the net on Active vs Passive FTP modes.
|
| HTH,
| John

The only thing I haven't done is edit the MTU. I had checked that out
BUT.....
I AM connected to the server site site. Now with a different software to
FileZilla I get a directory listing (FlashFXP). I can delete files using
that directory listing. BUT files will not transfer. Transfer is
unsuccessful and connection closes. Tried SmartFTP which has 64 bit-not
successful, AceFTP- no, and uninstalled totally FileZilla, reinstalled -no
directory listing)
The Wizard configuration in FileZilla completed successfully with an added
note that the server closes prematurely.
The setting has been Passive throughtout history.
I'm not enthused about going directly from the modem and skipping the router
but I thought about it last night <grin>
I'm almost to the point of just moving to a server that works <grin> because
the built in web control panel is phenomenally slow, one file at a time
routine.
Using the search term 'FTP Configuration' last night brought up results that
I hadn't found because I've been through the Active vs Passive all week.
I'm beginning to consider that its not at my end.
Thanks for responding.
Rose




.

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