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ESSA provides FTP file transfer capabilities
as a fast and preferred way to transport large files (>1mb
as a rule of thumb) via the Internet.
This page is meant to help colleagues and clients
place and retrieve files on ftp.essa.com. There are four sections.
| 1. |
Anonymous access |
| 2. |
Secure access |
| 3. |
File and directory lifetime |
| 4. |
Further help - what to do when
you have problems uploading and downloading via FTP |
1. Anonymous Access
There are two modes of access: anonymous and
secure. Anonymous access allows anyone on the Internet to upload
files to the /Incoming directory of our FTP site:
ftp.essa.com/pub/essa/Incoming
Once placed in the /Incoming directory, files
cannot be removed/viewed/deleted by anonymous users. Uploads to
this directory are permitted from Internet Explorer, Netscape, WS_FTP32
and CuteFTP (and probably other FTP clients), but anonymous users
cannot view the contents of the directory. Those who upload anonymously
will have to take it on faith (it will be confirmed by the FTP client)
that their file has been successfully transferred.
The Firefox browser requires an add-on (FireFTP) to allow uploads.
With the exception of the /Incoming and /Internal
directories (described below), anonymous users can retrieve files
from any other directory on our site. Some early versions of the
Microsoft Internet Explorer browser (pre-IE5) are unable to do this,
and may need to be updated. WS FTP 32 and CuteFTP applications should
properly once they are correctly configured.
2. Secure access
Secure access allows individuals to view, upload,
download, create and remove files and directories from anywhere
on our site. Because of these privileges, this level of access is
given out only to those who really cannot get by with anonymous
access. Please ask your contact at ESSA about this form of access,
if you feel you require it.
3. File and directory lifetime
Files are normally removed from the site after
two weeks; the same goes for empty directories and subdirectories.
4. Further help - what do
to when you have problems uploading and downloading via FTP
Your FTP client should be set up for BINARY mode
transfers and not ASCII mode transfers. If you are having trouble
with transfers that start and then stall after a few seconds,
please make sure you are using BINARY mode.
Placing files onto the FTP site (e.g. in the
/Incoming folder) is sometimes difficult when a firewall is in use.
Assuming your firewall allows FTP in the first place, you will almost
certainly need to set your FTP client to use passive mode transfers.
Those who use a browser for file transfers will almost certainly
need to set up their browser for passive mode transfers (In IE 6,
this is under Tools, Internet Options, Advanced. Look for "Use
Passive FTP". Netscape seems to use Passive mode automatically).
If you are having trouble with transfers that never seem to get
started, please ensure you are using passive mode.
If you are operating across a firewall,
you may need to see your system administrator to configure your
workstation FTP client, particularly if your network has restricted
Internet access. The IP address for our site is
208.181.178.21.
If you have read this far, tried the suggested
configuration options and are still unable to access our FTP site,
please contact
for further assistance.
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