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Accessing the CLI and Password Security
The CLI (Command Line Interface) is a text-based interface that allows users to interact with a device by entering commands. To access the CLI of a switch, you need to connect to it using a terminal emulation program such as PuTTY or SecureCRT. You can connect to the switch using the console port or a network port.
To connect to the console port, you need a console cable that is compatible with the switch. The console cable usually has a DB-9 connector on one end and an RJ-45 connector on the other end. You can connect the DB-9 end of the cable to the serial port of your computer and the RJ-45 end to the console port of the switch. Once you have connected the console cable, you can open the terminal emulation program and configure the connection settings to match the console port settings of the switch, which usually include a baud rate of 9600, 8 data bits, no parity, and 1 stop bit.
Once you have established a connection to the switch, you will be prompted to enter a username and password to access the CLI. The default username and password for most switches are usually “admin” and “password”, respectively. However, it is important to change the default password to a strong and unique password to ensure the security of your switch.
To configure password security on a switch, you can use the following commands in the CLI:
Switch(config)# enable secret <password>
This command sets the enable secret password, which is used to access privileged mode. The password is encrypted using MD5 hashing.
Switch(config)# username <username> secret <password>
This command creates a new user account with the specified username and sets the password for the account. The password is also encrypted using MD5 hashing.
By configuring strong password security on your switch, you can prevent unauthorized access to your network and ensure the integrity of your data.
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