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I was trying to download a pdf from the intel website at this address. When I open it through the browser(google-chrome) there seems to be no problem in viewing it or storing it on the my hard disk.
But when I tried to
wget http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-manual-325462.pdf,
I got the following error:

Connecting to www.intel.com|128.230.11.57|:80... connected.
HTTP request sent, awaiting response... 403 Forbidden
2012-03-12 16:12:25 ERROR 403: Forbidden.
FYI, There was no login required on the website. Why would this happen?

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1  
User-agent filtering? – billc.cn Mar 12 '12 at 20:19
    
Maybe the server handles command-line user agents differently than "normal" browsers? – slhck Mar 12 '12 at 20:19
    
That was it. Thanks – Lelouch Lamperouge Mar 14 '12 at 0:13
up vote 8 down vote accepted

In this case the site is checking User-Agent. wget --user-agent=Safari ... downloads the file without problem. (Everyone fears blocking Apple's customers, apparently.)

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I try to download this file failed:wget --user-agent=Safari code.ros.org/trac/wg-ros-pkg/raw-attachment/ticket/5069/… – sam Oct 8 '12 at 2:22
    
How to solve that problem? Thank you~ – sam Oct 8 '12 at 2:23
    
You should ask a new question – Lelouch Lamperouge Mar 14 '13 at 4:23

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