When quarantine is disabled on a broker, any link can connect to the broker without approval. When quarantine is enabled on a broker, any downstream broker or link without an authorized token is held in quarantine. The system can read, subscribe to, and command nodes that are in quarantine, but a node that is in quarantine cannot access other nodes in the system.
To enable or disable quarantine, edit dsa/dglux-server/server.json.
To remove a node from quarantine, you can authorize or deauthorize the node. An authorized node is granted access as the permission group that you specify. A deauthorized node is refused access and removed from the system. You can also deauthorize any downstream broker or node that has previously been authorized.
To authorize a broker or link:
To deauthorize a broker or link:
To create a user:
Right-click sys > users and choose Create User.
To edit a username, right-click sys > users > [username] and choose Rename User.
To edit a user password, right-click sys > users > [username] and choose Change Password. Enter the new password and click Invoke.
To edit a user's permission group, landing page, or other user properties, right-click sys > users > [username] and choose Edit User. Edit the properties and click Invoke.
To delete a user, right-click sys > users > [username] and choose Remove User.
In DSA, you assign permission groups to users. Permission groups are defined in dsa/dglux-server/server.json. In server.json, the defaultPermission config is a permission list that defines the capabilities of each permission group in relation to the root node.
The first value of each item in defaultPermission is the [permission group]. This can be a username, dsId, custom user group, or "default."
The second value of each item is the [permission value]. Valid values are:
Example:
"defaultPermission": [ [":config","config"], [":write","write"], [":read","read"], [":user","write"], ["default","read"]
Any user with "superuser" enabled has the maximum permission level and does not need a permission group defined.