4.8 Uninstall or Disable Unnecessary Services on Enterprise Assets and Software Automated Configure Client Services IG2 IG3 Level 1 M1042 Server Services T1203 T1543 T1543.002 T1570 TA0008 Workstation 2.2.1 Ensure NIS Client is not installed Audit# Verify nis is not installed. Use the following command to provide the needed information: # dpkg-query -s nis &>/dev/null && echo "nis is installed" Nothing should be returned. Remediation# Uninstall nis: # apt purge nis