Access control list

ACL operation

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An ACL is a series of IOS commands that control whether a router forwards or drops packets based on information found in the packet header. ACLs are among the most commonly used features of Cisco IOS software.

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Filter traffic based on traffic type. For example, an ACL can permit email traffic, but block all Telnet traffic.

Security Configuration Editor

Local Security Policy

A Local Security Policy is used to set the security requirements on the local computer

primarily used for stand-alone computers or to apply specific security settings to a Domain member.

Domain Security Policy

A Domain Security Policy is used to set and propagate security requirements for all computers in the Domain.

overrides Local Security Policy settings for all computers within the Domain.

Active Directory Users and Computers

definition

Active Directory (AD) is a Microsoft technology used to manage computers and other devices on a network.

function

It is a primary feature of Windows Server, an operating system that runs both local and Internet-based servers.

Active Directory allows network administrators to create and manage domains, users, and objects within a network.

Active Directory provides a way to organize a large number of users into logical groups and subgroups, while providing access control at each level.

These services include

Domain Services

Certificate Services

Lightweight Directory Services

Directory Federation Services

Rights Management

Introduction

Access control list

This chapter explains how to configure and troubleshoot standard IPv4 ACLs on a Cisco router as part of a security solution.