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User Management

Allmon3 supports a robust multi-user configuration that permits per-node granular access as desired and that abstracts Allmon3 from the Asterisk AMI Manager configuration.

Usernames and passwords are stored in /etc/allmon3/users.

The default-configured username and password combination isallmon3 / password.

You must change this before exposing a host to the Internet

User Database

Allmon3's user database is managed by allmon3-passwd. Adding a new user or editing an existing user is the same command. If the user does not exist, it will be added. If the user does exist, the password will be updated. To add or edit a user's password:

$ allmon3-passwd allmon3
Enter the password for allmon3: password
Confirm the password for allmon3: password
That's all there is to it. The /etc/allmon3/users file is readable to see that the Argon2 hash changed for the user.

Deleting a user is simply adding the --delete flag to the command:

$ allmon3-passwd --delete allmon3

After changing a user password, the allmon3 damon must be reloaded with systemctl reload allmon3.

Per-Node Restrictions for Users

Allmon3 implements a lightweight access control system to restrict commands from certain users to certain nodes. Restrictions are configured in /etc/allmon3/user-restrictions. Given that the average use case is all users have similar access, the access control is implemented in a named-restrictions model for least configuration complexity.

The logic is as follows when checking the restricted access list:

  1. If the user is not listed in user-restrictions at all than the user is permitted commands on all configured nodes.

  2. If the user is listed in user-restrictions and is listed as restricted to the node being commanded, the user is permitted to issue the command.

  3. If the user is listed in user-restrictions but the node is not listed for that user, the user is prohibited from issuing the command.

The format of the user-restrictions file is:

user1 | NODE[,NODE,NODE...]
user2 | NODE
Lines beginning with # are comments.