URL in SERP with and without my WWW

[schmeetz]

I read on some forum late yesterday that Google could be indexing both my http: //www.mysite.com and http: //mysite.com resulting in a potential duplicate content issue.

In Google I typed link:mysite.com and it appeared!

Does that mean they are both indexed…and if so should I be worried?

The poster said something about apache configuration and that I could somehow prevent this.

Can anyone share their experience / does this make any sense?

[cyanide]

yes and no

sure, google could be indexing both, but it's not (as far as I know) a duplicate content issue.
google will look at both as different as far as pr goes.

It's generally a good idea though, to choose one of those urls.. for internal linking as well as incoming links