André, A better way to ask my question maybe like this: Some referer pages are "-", some are other pages in the same website, and still some are pages of other website. If I want to find the users' request history (visiting history), could I just ignore the referer page but only check the request page? Btw, why the referer pages are different, like what I asked above, some are "-", some are other pages in either the same or different websites? Thanks, Paul On Sat, Aug 2, 2008 at 5:53 AM, André Warnier <aw@xxxxxxxxxx> wrote: > Paul Li wrote: > [...] >> >> My question is that, the resource in the request line, >> /finger-pulse-oximeter-octivetech-300c-p-37.html?osCsid=ddd, is >> actually a web page, but why the referer, http://www.ddd.ddd.dd/ , is >> another page? >> > Try the following experiment : > In your browser, call up the URL "www.google.com". > Then, when that page is displayed, overwrite "www.google.com" and manually > call up a URL on your server. > Then check your access log. > You may find that the access to your own page is shown with the referrer > "http://www.google.com";. > > The point is, the server does not really know from which page, a page on > your server is being called. It knows from which IP address it receives the > request, but not from which page (and it does not have to be a page). > So, in order to store the "referer" in the access log, it accepts whatever > the browser (or other program) which accesses the current page, is > specifying in the "Referer:" header that comes with the current request. If > the browser (or other program) sends a request to your server, and adds a > "Referer:" header containing "Planet Mars", then that is what your server > will put in the access log. > > Example : > 192.168.250.152 - - [02/Aug/2008:11:44:21 +0200] "GET / HTTP/1.1" 200 2355 > "Planet Mars" "lwp-request/2.08" > > The above line of access.log was obtained as follows : > Along with perl, comes a very handy command-line program named > "lwp-request", which allows one to compose a HTTP request to a HTTP server, > specify exactly which headers are being sent, and look at the exact response > sent by the server (headers and all). > The command I used was : > > lwp-request -Sed -m GET -H "Referer: Planet Mars" "http://localhost"; > > (the "-H" option allows to manually add a HTTP header to the request) > > André > > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP Server Project. > See <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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