define an attribute syntax for storing arbitrary string (and sometimes binary) data. ds-cfg-directory-string-attribute-syntax ds-cfg-attribute-syntax org.opends.server.schema.DirectoryStringSyntax Indicate whether zero-length (i.e., empty string) values will be allowed. This is technically not allowed by the revised LDAPv3 specification, but some environments may require it for backward compatibility with servers that did allow it. false ds-cfg-allow-zero-length-values