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