Searching \ for '[OT:]FTP or HTTP' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/index.htm?key=ftp+http
Search entire site for: 'FTP or HTTP'.

Exact match. Not showing close matches.
PICList Thread
'[OT:]FTP or HTTP'
2004\08\19@065052 by zantos

flavicon
face
Anyone have the merits of uploading large file to a web server using FTP or
HTTP? I understand MS prefer HTTP as it easier due to firewalls issues. Is this
correct? Any URL discussing this difference?
TIA
z

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

2004\08\19@070715 by William Chops Westfield

face picon face
On Aug 19, 2004, at 3:48 AM, zantos wrote:

> Anyone have the merits of uploading large file to a web server using
> FTP or HTTP? I understand MS prefer HTTP as it easier due to firewalls
> issues. Is this correct?

Sounds right.  FTP uses a separate tcp connection for the data
transfer, whose endpoint port numbers are (potentially) negotiated and
opened from the 'wrong' end of the connection.  They both squirt the
data down a single tcp connection, so performance should be similar
(although ftp may optimize window sizes for bulk data in ways that http
doesn't, that's probably relatively uncommon.)

BillW

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

2004\08\19@072000 by Alan B. Pearce

face picon face
> Anyone have the merits of uploading large file to a web server using
> FTP or HTTP? I understand MS prefer HTTP as it easier due to firewalls
> issues. Is this correct?

I suspect that the preference is more to do with dealing with things like
proxy servers, fire walls, and presenting a common interface to the user,
than any specific performance issue. After all Internet Exploder knows about
FTP, you can open FTP pages, and it shows it suitably on the screen as a
directory listing, and it downloads from an FTP server.

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

2004\08\19@075732 by Howard Winter

face
flavicon
picon face
Alan,

On Thu, 19 Aug 2004 12:20:33 +0100, Alan B. Pearce wrote:

> > Anyone have the merits of uploading large file to a web server using
> > FTP or HTTP? I understand MS prefer HTTP as it easier due to firewalls
> > issues. Is this correct?
>
> I suspect that the preference is more to do with dealing with things like
> proxy servers, fire walls, and presenting a common interface to the user,
> than any specific performance issue.

Indeed - MS aren't the least interested in performance, it's the hassle factor that firewalls may stop FTP
unless you specifically allow them to pass it, plus the "Active" mode needs to allow a negotiated
(unpredictable) high-numbered port through - passive mode doesn't, but it's not usually the default.

In my own experience, FTP is slightly faster than HTTP from the same server.  Not enough to matter, but it's
not nothing!

> After all Internet Exploder knows about
> FTP, you can open FTP pages, and it shows it suitably on the screen as a
> directory listing, and it downloads from an FTP server.

Yes but it's using FTP in this case, even though it's an HTML browser!

The thing that I like about FTP is that it's restartable if interrupted (given that the software at both ends
needs to support this) and even on my ADSL line it takes nearly 3 hours to download a CD image, so
restartability can be very handy!  :-)

Cheers,


Howard Winter
St.Albans, England

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

2004\08\19@104859 by Harold Hallikainen

face picon face
I like using sftp for file uploads since ftp sends usernames and passwords
in the clear. I have only port 23 (ssh) open on my router and am able to
use sftp to transfer files in and out.

Works well for me!

Harold


{Quote hidden}

--
FCC Rules Online at http://www.hallikainen.com

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

More... (looser matching)
- Last day of these posts
- In 2004 , 2005 only
- Today
- New search...