The ProxySG does not support the use of a hosts file. However the ProxySG does offer a way of simulating such behavior by defining a forwarding host. This can be done via the CLI or the Management Console. To simulate the hosts file entry '10.10.10.10 www.bluecoat.com' you would need to do the following:
Create the host in the CLI using the following command:
Enter configuration commands, one per line. End with CTRL-Z.
ProxySG#(config forwarding)create bluecoat_server 10.10.10.10 http=80 server
Create the policy rule to forward to that host:
This can be placed in the local policy file. If you do not know how to place this into the local policy file, please see 000010101