ABSTRACT
Internet from the intranet is not usually filtered. Some cor-
porations constrain outbound traffic to allow only Web-
based protocols (e.g., HTTP, FTP, and IIOP).
The rise in remote access usage is making the reliance
on physical proximity to the corporate LAN a moot point.
With a growing number of access points in today’s corpo-
rate intranets, network and application security has to
become more stringent to provide adequate protection for
corporate resources. The lines between the intranet and
other classes of networks are becoming blurred.