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From Andres Monroy-Hernandez <and...@exlibris-usa.com>
Subject [users@httpd] Web server corrupting image?
Date Wed, 08 Jun 2005 17:23:53 GMT
Hello,

I have two identical images (gifs). One is displayed correctly, the 
other one not. I hope you can provide any hints.

In order to make sure both files are identical I compared their 
hexadecimal fingerprint by doing:

% od good.gif > good.hex ; od bad.gif > bad.hex; diff bad.hex good.hex

I checked the HTTP headers for both images and everything looks fine 
looks fine: Content-Type and Content-Length are the same.
The Etag is different, but I believe this is normal.

The good one:
---------------------------
Response Headers - http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/good.gif
Date: Wed, 08 Jun 2005 17:02:08 GMT
Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
Etag: "1540fa-2a8-f9d9e840"
Accept-Ranges: bytes
Content-Length: 680
Keep-Alive: timeout=15, max=99
Connection: Keep-Alive
Content-Type: image/gif

200 OK
---------------------------


The bad one:
---------------------------
http://openurl.uquebec.ca:3210/sfxctrl/pix.1.0/bad.gif
Date: Wed, 08 Jun 2005 17:00:48 GMT
Server: Apache/2.0.52 (Unix) mod_ssl/2.0.52 OpenSSL/0.9.7e DAV/2
Last-Modified: Sun, 13 Jun 2004 08:44:09 GMT
Etag: "154056-2a8-f9d9e840"
Accept-Ranges: bytes
Content-Length: 680
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Content-Type: image/gif

200 OK

---------------------------


Thanks in advance.

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