Hello,
I install YAF forum correctly in same DB as dnn . the forum show the main page correctely but all links redirect me to url like : Forum/tabid/93/c/1c/Test-Category without default.aspx in .

1- how can i change url format to add defalut.aspx in end of the url ?

notice : I use friendlyurl format

Thanks

By default dnn removes the default.aspx What you can do is change the urlFormat to humanfriendly for the friendlyurl provider in the web.config