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From Joshua Slive <>
Subject Re: [users@httpd] Allowing real ip address
Date Thu, 27 Jan 2005 18:18:01 GMT
On Thu, 27 Jan 2005 18:40:15 +0100, Ivan Belmonte
<> wrote:
> I've just written a PHP script that shows me the whole header.
> HTTP_CLIENT_IP and HTTP_X_FORWARDED_FOR variables have the real ip value.
> REMOTE_HOST and REMOTE_ADDRvariables have the proxy ip value.
> Yes, I can see the real IP into the header fields, but I'm trying to do it appear on
logs, following this way:
>   LogFormat "%{HTTP_CLIENT_IP}i %h %l %u %t \"%r\" %>s %b" common
> But it shows no address. Changing the first "i" for an "a" shows the proxy IP (is okay
as it shows
> So I think that Apache is not really reading my variables.
> How can I show that variables on my "common" logs, and how can I trap the value with

The HTTP_ part is an indication that the variable comes from an HTTP
request header; it is not part of the header itself.  In addition,
"-"s are converted into "_" when naming env variables.  So the read
HTTP header looks like "Client-IP" and you can use just ${CLIENT-IP}i
for the logs.

The same goes for SetEnvIf, so you should be able to use
SetEnvIf Client-IP ^123\.456\.789\.123$ goodip
Order Deny,Allow
Deny from all
Allow from env=goodip


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