Hi Phil

Alas that isn't possible... there is a constraint in Apache that limits this to 
8190... see following help text from Apache:

Maximum request line: allows you to reduce the limit on the allowed size of a 
client's HTTP request-line below the normal input buffer size compiled with the 
server. Since the request-line consists of the HTTP method, URI, and protocol 
version, this option restricts the length of the request-URI. A server needs 
this value to be large enough to hold any of its resource names, including any 
information that might be passed in the QUERY_STRING part of a GET request. 
This option gives the server administrator greater control over abnormal client 
request behavior, which may be useful for avoiding some forms of 
denial-of-service attacks. Under normal conditions, the value should not be 
changed from the default. Valid values include integers between 0 and 8190. The 
first drop-down menu specifies units of memory. The second drop-down menu 
provides the options: 

Default: places 8190 in the edit field and "Bytes" in the first drop-down menu. 
Maximum: places 8190 in the edit field and "Bytes" in the first drop-down menu.

This field is optional. Directive: LimitRequestLine

Regards, Andy.

-----Original Message-----
From: Philip Wigg [mailto:p...@philipwigg.co.uk]
Sent: 25 November 2009 09:23
To: users@httpd.apache.org
Subject: Re: [us...@httpd] CGI Apache Directive: LimitRequestLine


> However, the problem we have stumbled onto is the maximum size of the query
> string that we can use... this is limited to 8190 bytes... I believe this is
> a "Directive" constraint in Apache called: LimitRequestLine
>
> We understand that there isn't such a limit using a "post" request but
> before we re-develop everything we have done we wanted to make sure that
> there wasn't anything we could do to get around the constraint I have just
> mentioned. We would be looking at a maximum size more in the region of 32k.

8190 bytes is the default but you increase it by specifying a larger
limit in your httpd.conf. Putting something like:-

LimitRequestLine 32768

should do it if that's all the problem is.

Cheers,
Phil.

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