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I've noticed in my web server logs that somebody using Firefox,
specifically Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2), appears to repeat
every request four times within about a second.

For instance (IP address omitted):
xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"
xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"
xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"
xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"

Can anybody shed some light as to why this is occurring, and what can be
done to stop it?

Merci,
Josh

Josh_Rendlesham wrote:
> I've noticed in my web server logs that somebody using Firefox,
> specifically Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
> Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2), appears to repeat
> every request four times within about a second.
>
> For instance (IP address omitted):
> xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
> HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
> Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"
> xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
> HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
> Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"
> xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
> HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
> Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"
> xxx.xxx.xxx.xxx - - [03/Jun/2005:06:04:48 -0400] "GET /favicon.ico
> HTTP/1.1" 200 494 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
> Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2)"
>
> Can anybody shed some light as to why this is occurring, and what can be
> done to stop it?
>
> Merci,
> Josh
>

Maybe there are 4 favicons to get?

Josh_Rendlesham wrote:
> I've noticed in my web server logs that somebody using Firefox,
> specifically Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.
> Gecko/20050517 Firefox/1.0.4 (Debian package 1.0.4-2), appears to repeat
> every request four times within about a second.
>
> Can anybody shed some light as to why this is occurring, and what can be
> done to stop it?
>

Well I'm by no means an expert on Mozilla technology, but I do know that
Firefox (and Mozilla Suite as well) has a hidden (and experimental)
feature called Pipelining, and I believe this is what it does -- open
multiple requests for each resource to download it faster, same way some
of those external download managers do. It's turned off by default, but
you can turn in on with about:config or any of the various extensions
for accessing hidden preferences. I don't know that there's anything
you can do to stop it short of blocking the IPs you see doing it; and
I'm not sure you want to stop it anyway, since if I'm right it's a
feature, not a bug.

--
Ryukage