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The last section of parameters is called Miscellaneous. It contains parameters, which does not depend on neither
Security, nor Bridge categories. ACL File denotes access control list file name. The contents of this file are used to control
client access to topics of the broker. The Password File denotes the file, there users and corresponding passwords are
stored. This file is used for user authentication. This option is related to another option called Allow Anonymous. If
Allow Anonymous is unchecked, only users, which exist in password file will be able to connect to the broker. More
about password file can be read on mosquitto configuration manual. The last option is called Persistence, it allows to
save connection, subscription and message data to the disk, otherwise, the data is stored in memory only.