[Zope] Zope, FTP, and Remote Access Alternatives

[Paul Winkler]

On Thu, May 01, 2003 at 12:03:04PM -0600, hpinson@indepthl.com wrote:
> Hi. An increasing number of our associates are experiencing NAT 
> related FTP issues with Zope.

Did you ever get any responses to this? or find a solution?

I'm finding that I need ftp access to a zope server I work on
and I need to do it via ssh tunneling, and I can't get it to work.
Based on your message I wonder if it's because I'm connecting
to a NATted IP.

what were the problems you had?  you never really said.

I find that I can make a connection but "ls" either gives connection
refused or never returns.

In the examples below, I use 99.99.99.99 and 88.88.88.88 as stand-ins
for the actual IPs i'm using.

First I try a server that I access via a NATted address.
I have this in my ~/.ssh/config (with the real remote IP of course):

Host 88.88.88.88 
LocalForward 18021 localhost:8021

now i can make an ftp connection to localhost on 18021:

$ ftp -p localhost 18021
Connected to localhost.
220 dev-zope-knox01 FTP server (Medusa Async V1.21 [experimental]) ready.
500 'AUTH': command not understood.
SSL not available
331 Password required.
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> user
(username) paulw
331 Password required.
Password: 
230 Login successful.
ftp> ls
227 Entering Passive Mode (127,0,0,1,178,158)
ftp: connect: Connection refused
ftp>


Two odd things there:

1) Why do I get a "Login successful" before I've provided a username?
2) Why do I get "Connection refused" when doing an ls?


OK, so I try another system. This one uses a non-NATted  IP. 
In this case I get prompted for username right away, but ls never returns.
First I set up the tunnel:
ssh -L 18021:99.99.99.99:8721 99.99.99.99 


$ ftp -p localhost 18021
Connected to localhost (127.0.0.1).
220 prod-realserver-knox01 FTP server (Medusa Async V1.21 [experimental]) ready.
Name (localhost:pwinkler): paulw
331 Password required.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
227 Entering Passive Mode (99,99,99,99,165,173)
ftp: connect: Connection timed out
ftp>

-- 

Paul Winkler
home:  http://www.slinkp.com
"Muppet Labs, where the future is made - today!"