# Verifying the Control Center configuration

This procedure verifies that the Control Center configuration is identical on both nodes.
1. Log in to the primary node as root, or as a user with superuser privileges.
2. In a separate window, log in to the secondary node as root, or as a user with superuser privileges.
3. On both nodes, compute the checksum of the Control Center configuration file.
cksum /etc/default/serviced
• If the result is identical on both nodes, the configurations are identical. Do not perform the next step.
• If the result is not identical on both nodes, there may be a difference in their configurations; proceed to the next step.
4. Optional: On both nodes, display the customized variables, if necessary.
grep -E '^\b*[A-Z_]+' /etc/default/serviced | sort
Example result:
SERVICED_DM_THINPOOLDEV=/dev/mapper/serviced-serviced--pool
SERVICED_DOCKER_REGISTRY=HA-Virtual-IP:5000
SERVICED_ENDPOINT=HA-Virtual-IP:4979
SERVICED_FS_TYPE=devicemapper
SERVICED_ZK=HA-Virtual-IP:2181