[Web4lib] is FTP with a browser really FTP

[Cloutman, David]

Perhaps your command line FTP uses active FTP, while IE uses passive
FTP. It is a least a plausible explanation, if not the correct one. This
page explains FTP pretty well. It is a much more complicated protocol
than HTTP. (FTP for instance uses two ports, 20 and 21, instead of one.

http://slacksite.com/other/ftp.html



---
David Cloutman <dcloutman at co.marin.ca.us>
Electronic Services Librarian
Marin County Free Library 

-----Original Message-----
From: web4lib-bounces at webjunction.org
[mailto:web4lib-bounces at webjunction.org] On Behalf Of John Fitzgibbon
Sent: Monday, July 07, 2008 8:41 AM
To: web4lib at webjunction.org
Subject: [Web4lib] is FTP with a browser really FTP


Hi,

I work from behind a firewall. FTP from the command line is blocked.
However, if I open an FTP session with my browser by typing ftp:// for
the protocol it works unhindered by the firewall.

Does Internet Explorer 7 process FTP requests through HTTP or is there
something else going on?

Regards
John


w: www.galwaylibrary.ie

e: info at galwaylibrary.ie

p: 00 353 91 562471

f: 00 353 91 565039


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