For example, it was thought that the goal of ISA was to replace other
firewall or security devices with Microsoft-only devices. Subsequently, many Security
Administrators were hesitant to consider deploying ISA, seeing it as a potential threat to
existing firewalls and technologies. The reality of modern ISA deployments, however, is
that they are most commonly deployed as an additional layer of security for an organization,
not as a replacement for other security layers. For example, many ISA servers are
being deployed as reverse-proxy devices that sit in the DMZ network of an existing firewall
solution. As organizations have begun to realize that they do not need to put all their
proverbial eggs in Microsoft??™s basket to be able to utilize some of ISA??™s enhanced functionality,
many of the arguments against deploying ISA have become moot.
The real key to ISA??™s success lies within its flexibility and its capability to adapt to different
security roles within an organization. For smaller organizations that require a complete
firewall solution, it delivers. For other larger organizations that are simply looking to
secure their Outlook Web Access (OWA) traffic from the Internet, it delivers as well.
Pages:
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91