TAILIEUCHUNG - CNNA3-Chapter 2: Part II

Password RecovePassword Recovery: To recover a switch password: Power up the switch with the Mode button pressed. Initialize flash. Load helper files Rename the current configuration file. Reboot the system. Reinstate the name of the configuration file and copy it into RAM. Change the password. Copy to start up configuration Reload the switch. | Chapter 2 Switch Concepts and Configuration Part II Switch Concepts and Configuration Configuring Switch Security Passwords Encryption Console Telnet / SSH Password Recovery MAC Address Flooding Spoofing Attacks CDP Attacks Telnet Attacks Security Tools Port Security Securing Console Access: Configuring Password Options Securing Virtual Terminal Access: There are 16 available default Telnet sessions as opposed to the 5 sessions set up for a router. Configuring Password Options Securing Privileged EXEC Access: Always use enable secret for password encryption. Configuring Password Options Encrypting Switch Passwords: You can encrypt all passwords assigned to a switch using the service password-encryption command. Configuring Password Options Password Recovery: To recover a switch password: Power up the switch with the Mode button pressed. Initialize flash. Load helper files Rename the current configuration file. Reboot the system. Reinstate the name of the configuration file and copy

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