The blacklist is used to prohibit client connections from being matched and is suitable for restricting a small number of clients. The control of the blacklist will expire after the validity period.
The blacklist function only applies to Dedicated and BYOC deployments.
From the left-navigation menu of EMQX Cloud Console, selet Authentication & ACL -> Blacklist. Click + Add on the top right to add a client to the blacklist.
Type and Value
The client to be added to the blacklist can be identified by the following types. Select the type and set the value accordingly based on the requirements:
- Clinet ID: Letters, numbers and some special characters (_, -, /, +, #, $, %, @, & and .), up to 256 characters.
- Username: Letters, numbers and some special characters (_, -, /, +, #, $, %, @, & and .), up to 256 characters.
- Clinet IP: IPv4 address.
The maximum expiration time is 1 year. The minimum expiration time is 5 minutes, and it cannot be earlier than the current time.