Setup GeoIP (PECL) for piwik geolocation and updating old visits

GeoIP is the recommended way to accurately determine the location of the visitor, by default geolocation settings may provide in accurate result.

To enable GeoIP(PECL) from redhat/centos machines:
# yum install php-pecl-geoip
#apachectl restart
# php -m | grep -i geo
geoip

From Piwik, Settings –> Geolocation –> GeoIP (PECL)

To reindex the old visits:
# cd misc/others
# php ./geoipUpdateRows.php
[note] Found working provider: geoip_pecl
90094 rows to process in piwik_log_visit and piwik_log_conversion....
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100% done!