Information
Verify that the Docker server certificate file (the file that is passed alongwith '--tlscert'parameter) is owned and group-owned by 'root'.The Docker server certificate file should be protected from any tampering. It is used to authenticate Docker server based on the given server certificate. Hence, itmust be owned and group-owned by 'root' to maintain the integrity of the certificate.
Solution
chown root:root <path to Docker server certificate file>This would set the ownership and group-ownership for the Docker server certificate file to 'root'.
Impact-
None.
Default Value-
By default, the ownership and group-ownership for Docker server certificate file is correctly set to 'root'.