Hi, iam having problem whit duplicated urls, for example if i do a site:ofmysite.com i find the same topic with two different urls:

-www.mysite.com/forums/something-t27.html

-www.mysite.com/forums/viewtopic.php?f=4&t=27

It seems that somewhere is not the url rewrited, but i cant find it, any ideas ?

Thanks.

This most likely means that your forum previsouly was indexed with unrewritten urls, these should be about to disapear from the SE's index if you kept the Zero duplicate actvated in ACP, just like in the demo forum :

http://phpbb3.phpbb-seo.net/viewtopic.php?t=3
http://phpbb3.phpbb-seo.net/duplicate-t3.html

Thanks, Zero duplictate was disabled, i have to select strict mode ? or whit the first option is enough ?

Strict mod will destroy pretty much 100% of the possible dupe on the handled scripts, the regular mode will allow the uri to be a little longer as long as the beginning fully matches, it can be handy in case you install some mod adding some GET vars to the handled script.

So until the strict mode cause problems, use it, just know that upon a mod install, if a feature seems unreachable, it could be redirected because of the strict mode. The other mode may then be used at least until you or we adapt the zero dupe mod a bit for this new GET var.

The other important option is post redirection, you should a t least set it on guest in pretty much all cases.