> > Start one and start another.  Just don't select
> the
> > same mirror.
> 
> Doesn't work. The first loads <http://hal:8080/>
> successfully, but when I launch the second it loads
> <http://hal:8081/> which only shows a page saying
> '“hal” refused the connection.'

That has nothing to do with starting multiple mirrors.  That has to do with
the mirrors. hal:8080 exists and hal:8081 doesn't. Why are you tring to mirror
the same site twice?