The Microsoft Hybrid Agent Public Preview

1) Is this connection required during actual configuration? aadap-portcheck-seaus.connectorporttest.msappproxy.net on port 8080, test is failing since we only open port 80/443 to the O365/Azure IPs. Port 8080 does not show up on the official Azure AD/O365 ports and URLs requirements docs.

2) How do we install Hybrid Agent on a separate machine outside the Exchange Servers? e.g. such as a dedicated machine joined in the domain but does not run Exchange. Should we invoke the HCW from the Exchange Management console and when prompted to install, save the installer and run it on a separate machine? Or is there a direct URL to invoke installing Hybrid Agent on a separate machine other than the Exchange Servers. Running Exchange 2010 SP3.