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What is the purpose of an ACL?

What is the purpose of an ACL?

Almost all network security systems operate by allowing selective use of services. An ACL or Access control list is a common means by which access to and denial of services is controlled. On network devices such as Routers and firewalls, they act as filters for network traffic, packet storms, services and host access. Most of these devices come with standard or default ACL and allow for custom ACL's.

This was last published in January 2004

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