How do I filter out hits by IP address and domain name

Hello,
I am happy to have found Piwik but I need to know if there is some way of not counting hits from certain IP addresses and domains? This is easy enough to do in Google Analytics and I would love to be able to do it in Piwik. Your help is greatly appreciated. Thank you.

Possible… This is a planned feature. In the meantime, there are community contributions in Trac that you can look at.