mod_pagespeed is an open-source Apache module created by Google to help Make the Web Faster by rewriting web pages to reduce latency and bandwidth.

Please follow below instructions to install mod_pagespeed over Centos server.

1) Check Linux distros and the version on the server:

# uname -a

2) Download latest rpm of mod_pagespeed according to the architecture of the server

# wget https://dl-ssl.google.com/dl/linux/direct/mod-pagespeed-beta_current_x86_64.rpm

3) Install the rpm :

# rpm -i mod-pagespeed-*.rpm

4) After installation, configure installed files

# rpm -ql mod-pagespeed-beta
/etc/cron.daily/mod-pagespeed
/etc/httpd/conf.d/pagespeed.conf
/usr/lib64/httpd/modules/mod_pagespeed.so
/var/www/mod_pagespeed/cache
/var/www/mod_pagespeed/files

5) Restart Apache

# service httpd restart

Inorder to upgrade the mod_pagespeed module, you must first download the latest version http://code.google.com/speed/page-speed/download.html and use of the command

#  yum localinstall mod-pagespeed-*.rpm  

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