Hiding user names and passwords
To achieve a higher level of security, ensure that user IDs and passwords are not visible within the system.
The .netrc files contain user IDs and passwords. This file is not protected by encryption or encoding, thus its contents are clearly shown as plain text. To find these files, run the following command:
# find `awk -F: '{print $6}' /etc/passwd` -name .netrc -lsAfter you locate these files, delete them. A more effective way to save passwords is by setting up Kerberos. For more information about Kerberos, see Kerberos.