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2.1.10 Ensure nis server services are not in use

Audit#

Run the following command to verify ypserv is not installed: 

# dpkg-query -s ypserv &>/dev/null && echo "ypserv is installed"
Nothing should be returned.

- OR - - IF - the package is required for dependencies: Run the following command to verify ypserv.service is not enabled: 

# systemctl is-enabled ypserv.service 2>/dev/null | grep 'enabled'
Nothing should be returned.

Run the following command to verify ypserv.service is not active: 

# systemctl is-active ypserv.service 2>/dev/null | grep '^active
Nothing should be returned.

Note: If the package is required for a dependency - Ensure the dependent package is approved by local site policy - Ensure stopping and masking the service and/or socket meets local site policy

Remediation#

Run the following commands to stop ypserv.service and remove ypserv package: 

# systemctl stop ypserv.service
# apt purge ypserv

- OR - - IF - the ypserv package is required as a dependency: Run the following commands to stop and mask ypserv.service: 

# systemctl stop ypserv.service
# systemctl mask ypserv.service