www.hss.ed.ac.uk. 30 IN CNAME chost4.is.ed.ac.uk. www.hss.ed.ac.uk. 30 IN CNAME chost4.is.ed.ac.uk. www.hss.ed.ac.uk. 30 IN CNAME chost4.is.ed.ac.uk. chost4.is.ed.ac.uk. 30 IN A 129.215.10.128 www.hss.ed.ac.uk. 30 IN CNAME chost4.is.ed.ac.uk.