However, whenever I try to start Maria DB I get the following
[Warning] mysqld: GSSAPI plugin : default principal 'mariadb/hostname.tld@REALM' not found in keytab
[ERROR] mysqld: Server GSSAPI error (major 851968, minor 2529639093) : gss_acquire_cred failed -Unspecified GSS failure. Minor code may provide more information. Keytab FILE:/etc/krb5.keytab is nonexistent or empty.
[ERROR] Plugin 'gssapi' init function returned error.