apache log

127.0.0.1 - - [13/May/2007:00:11:56 +0800] "GET /dede4/templets/img/ddd.jpg HTTP/1.1" 200 6689 "http://127.0.0.1/dede4/" "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.8.1) Gecko/20061010 Firefox/2.0"

it from log, what does it mean?

"GET /dede4/templets/img/ddd.jpg HTTP/1.1" is what client sent.

but what is http://127.0.0.1/dede4/ ? is it what sever send to client?

 

server loopback 127.0.0.1

 

it's the combined log of your server. Combined log show you all the most important things in HTTP request. Here is the definition of combined logs in the apache config file :

LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

Code (markup):

I suggest you to read the common and the combined log section of this doc:
http : // httpd.apache.org/docs/1.3/logs.html#common

To answer to your question, http : //127.0.0.1/dede4/ is the referer of the request. If you dont know, the referer is where the request came from.

Another questions?

 

That was a loopback request from your server or localhost

Localhost are 127.0.0.1 (Same referring location and same origin)