GeoIP
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install GeoIP on CentOS
Install geoip via yum:
yum install geoip geoip-devel
You also might want to download database with ip addresses from Maxmind website and place it in /usr/share/GeoIP (which is a default location of geoip upon installation).
Install PECL extension:
pecl install geoip
Add extension=geoip.so to your /etc/php.ini
Restart apache:
/etc/init.d/httpd restart
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