The command that will prevent all unencrypted passwords from displaying in
plain text in a configuration file, particularly in Cisco IOS devices, is:
service password-encryption This command globally enables encryption for
all plaintext passwords in the device's configuration file, preventing them
from being shown in clear text. Although it uses a simple substitution
encryption method (type 7), it is better than having plain text passwords
visible. Additionally, more secure alternatives like the enable secret
command can be used, which stores a hashed password rather than just a
reversible encryption. Summary:
- Use service password-encryption to prevent plain text passwords from displaying in configuration files.
- Prefer enable secret for a more secure, hashed password option.
This is the standard method to obscure unencrypted passwords from plain view in configuration files.
