Pecl / GeoIP problems

I installed Piwik on a subdomain of my website.
I installed pecl / geoip smoothly.
I have placed the database GeoIPCity.dat (GeoLiteCity.dat) on misc folder.
I enabled GeoIP (PECL) in Piwik.

On the right sidebar everything is correct except these 2 points:

  • Note: Cannot find apache_get_modules function, assuming non-Apache webserver.
  • Piwik cannot find any GeoIP $_SERVER variables.

How I can solve these two problems?

Thanks very much for your help.

Best regards,
Jose A.