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From Tom Evans <>
Subject Re: [users@httpd] rewrite rule tutorial on ask apache I could not understand syntax
Date Tue, 15 Jun 2010 14:46:33 GMT
On Tue, Jun 15, 2010 at 3:41 PM, Tapas Mishra <> wrote:
>> HTTP/1.0 clients do not send a Host header in the request
>>  => no host information can be inferred from a request
>>  => HTTP_HOST will be empty.
> but if HTTP_HOST is empty then from where is the reply coming from ?

I dont understand what you are asking? - the reply comes from apache.
HTTP_HOST is a variable that holds the value of the http header
'Host'. If the browser doesn't send one, it isn't going to have a


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