tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jon Wingfield <jon.wingfi...@mkodo.com>
Subject Re: many No Referrers in logs
Date Mon, 26 Jun 2006 15:13:28 GMT
Additionally, many client-side Security/Anti-Virus software packages 
automatically remove the referer header from requests.

Markus Schönhaber wrote:
> Robert Kudyba wrote:
>> We have our server.xml file set w/ the following entry:
>> Valve className="org.apache.catalina.valves.AccessLogValve"
>> directory="../logs" prefix="ws_access_log." suffix=".txt"
>> pattern="combined"
>>
>> However, there are still many log entries showing no referrers. Some are
>> from user spiders such as the following:
> [...]
>> So should we assume that if there is no referrer logged than the user was
>> just using links within the site?
> 
> No. IMO you should first of all assume that no-one guarantees that a client is 
> sending any referrer headers at all.
> Most modern browsers will do so but it is more or less easy to change their 
> configure to not send them. And moreover, it is very easy to use a proxy the 
> removes referrer headers from all requests - idependent of the client used or 
> it's configuration.
> Because of this you can't draw any safe and definite conclusion from the 
> absence of referrers.
> 
> That said, David's answer stands: in propably most cases, no referrer means 
> the request was made from a bookmark or by typing the URL into the address 
> bar and not by clicking on a link on some page (which then would be the 
> referring page).
> 
> Wether or not the referring page was "within the site" is of no relevance.
> 
> Regards
>   mks
> 
> ---------------------------------------------------------------------
> To start a new topic, e-mail: users@tomcat.apache.org
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
> 



---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message