The main IoA Intranet is here: local.ast.cam.ac.uk
This subset of pages are only accessible to members of the IoA with UCAM Raven access credentials as listed on Lookup here: https://www.lookup.cam.ac.uk/inst/IOA/members
A copy of the old main website is at https://d6-www.ast.private.cam.ac.uk. This is only accessible from the University network or VPN.