SSI problem

[JanTM]

Fiddling around with SSI I can't quite get it to work the way I want to.

Including files using

include virtual="file.html" or include virtual="/subdir/file.html" works just fine.
That is I can include files in the same directory or any subdirectory.

However... what I am trying to do is
include virtual="/../../anotherdomain.com/html/file.html"
And that doesn't work at all. In fact I can't seem to include any file in which the path to it involves going UP the directory strukture.

I have even tried a direct path like this
include virtual="/home/username/domain.com/html/file.html" - which doesn't work either. Anybody have any ideas... because the manuals I find online says it "should" be working |cry|