Mornin', 

Thank you for the feedback.

Our local servers support PASSIVE, it appears Italy does not.  To
confirm, I opened FTP on Italy and no PASSIVE command is available.
I'll pass your thoughts on to our network group.

ftp> PASSIVE
Passive mode is on.
ftp> PUT OUTPUT OUTPUT
502 PASV command not implemented by this server. 

-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]] 
Sent: Friday, April 06, 2007 12:15 AM
To: Marti Jarsey
Cc: [log in to unmask]
Subject: Re: [HP3000-L] SOCKET TIMEOUT (longish)

Marti,

> * We can open an FTP session from our US and Mexico servers to Italy.
> * We cannot GET or PUT data across those FTP sessions.  The error is
>   SOCKET TIMEOUT
> * We cannot create remote VT-MGR or FTP sessions from Italy to any of
>   our other servers

could it be that your US and Mexico network does not allow inbound TCP
connections from the Italy system? FTP uses a separate connection for
control (commands like mkdir, cd, pwd, etc) and data transfer (dir, get,
put). By default, the data connection is opened from the remote to the
local system. This seems to be the part that fails in your case.

Try using passive mode, if your FTP version allows it. This would cause
the data connection also to be opened from the local (US) to the remote
(Italy) system, and might work better.

As far as I recall, the FTP banner lines have a comment to say whether
passive mode is supported by the client and by the server. Before doing
a PUT or GET command, you would then use the PASSIVE command (try HELP
PASSIVE at the ftp prompt).

Not sure about DSCOPY, but maybe it also uses separate control and data
connections. Maybe it even does this based on the file size, which would
explain the strange size-dependency that you observed.

Lars.

* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *