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Re: [Lynx-dev] Problem?

From: Thomas Dickey
Subject: Re: [Lynx-dev] Problem?
Date: Tue, 8 Jul 2008 06:00:44 -0400 (EDT)

On Tue, 8 Jul 2008, David Woolley wrote:

Aidan C A Hopkins (Server Admin) wrote:

On further enquiry, it appears that Apache's mod_security rules think that Lynx users are trying to inject commands (Error 406).

Error 406 is a content negotiation failure. Used correctly, it means that there was no format of the resource, on the server, that was usable according to the browser's Allow header.

GET / HTTP/1.0\r
Accept: text/html, text/plain, text/css, text/sgml, */*;q=0.01\r
Accept-Encoding: gzip, compress, bzip2\r
Accept-Language: en\r
User-Agent: Lynx/2.8.7dev.9 libwww-FM/2.14 SSL-MM/1.4.1 OpenSSL/0.9.7d\r
Sending HTTP request.
HTTP: WRITE delivered OK
HTTP request sent; waiting for response.
HTTP: Trying to read 1535
HTTP: Read 718
HTTP: Rx: HTTP/1.1 406 Not Acceptable
HTTP: Scanned 2 fields from line_buffer
--- Talking HTTP1.

Did you mean 405, which refers to the use of an unsupported method.


In any case, other replies suggest that this is discrimination against Lynx, not something based on the actual request. Possible reasons for such a policy migh that Lynx is often integrated into automatic tools. Advertising funded sites, in particular, object to such tools, and some spammers may be using Lynx as part of address collecting machines, without changing the User-Agent.

perhaps. If the webmaster doesn't reply, I can assume anything I want to about the motivation.

Thomas E. Dickey

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