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You
can secure your system by using passwords to restrict access.
Passwords can be established both on individual lines and in the
privileged EXEC mode.
- line console 0 -- establishes
a password on the console terminal
- line vty 0 4 -- establishes
password protection on incoming Telnet sessions
- enable password -- restricts
access to privileged EXEC mode
- enable secret password (from
the system configuration dialog to set up global parameters -- uses
a Cisco proprietary encryption process to alter the password
character string
You can further protect passwords from
being displayed by using the service password-encryption
command. This encryption algorithm does not match the Data Encryption
Standard (DES).
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