Securing Console Access

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It's important to put the proper physical security mechanisms into place. If the proper physical

security mechanisms are not in place, an intruder could potentially bypass all other logical security mechanisms and gain access to the device. If an intruder can gain access to the administrative interface of the router, he could view and change the device's configuration and gain access to other networking equipment. The first thing you should do to prevent intruders from accomplishing is to set a console password. If the intruder has already gained physical access to the device, he'll attempt to gain network access through the console port first. The console port supports many different methods for authenticating a user and allowing access, some of which are listed here:
· Console password
· Local user database
· TACACS+ (Terminal Access Controller Access-Control System Plus) : is a protocol which provides access control for routers, network access servers and other networked computing devices via one or more centralized servers. TACACS+ provides separate authentication, authorization and accounting services.
· RADIUS(Remote Authentication Dial In User Service) : is a networking protocol that provides centralized access, authorization and accounting management for people or computers to connect and use a network service. When a person or device connects to a network often "Authentication" is required. Networks or services not requiring authentication are said to be anonymous or open.

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