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Securing Administrative Access

Jul 06,2009 by alperen

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One of the fundamental requirements in protecting the network is to secure the administrative access to any network device. With Cisco devices, administrative access to the device could allow someone to reconfigure features or even possibly use that device to launch attempts on other devices. Some of the basic techniques for securing administrative access would include the following:

Setting User mode passwords
Setting Privilege mode passwords
Encrypting passwords in the configuration files
Setting an MOTD banner to advise about the security restrictions
Setting access privilege levels
Restricting Telnet access to the device
Restricting web browser access to the device
Restricting SNMP access to the device

The first five techniques are covered in this chapter, while the last three are covered in Chapter 3, which deals with access control lists.

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