Preventing Unencrypted Passwords in Configuration Files

How can network devices prevent all unencrypted passwords from displaying in plain text in a configuration file?

1) (config)# enable password secret
2) (config)# enable secret Secret_Password
3) (config-line)# password secret
4) (config)# service password-encryption
5) (config)# enable secret Encrypted_Password

Answer:

The command to encrypt all passwords in a configuration file is (config)# service password-encryption.

Preventing unencrypted passwords from displaying in plain text in a configuration file is crucial for network security. By using the command (config)# service password-encryption, you can ensure that all passwords, both current and future, are encrypted and not easily visible in the configuration file.

When you enable password encryption on a network device such as a router or switch, you are taking an important step towards safeguarding sensitive information. Plain text passwords can be a major security risk, as they can be easily intercepted and used by unauthorized individuals to gain access to the network.

By utilizing the service password-encryption command, you are implementing a best practice for securing your network devices. This command encrypts all passwords stored in the configuration file, making it much more difficult for malicious actors to exploit vulnerabilities.

It is important to regularly review and update your network security measures, including password encryption methods, to ensure that your network remains protected against potential threats. By following recommended security practices and staying informed about the latest security developments, you can help keep your network safe from unauthorized access and data breaches.