Use the Synapse User Admin API as described here: https://github.com/matrix-org/synapse/blob/master/docs/admin_api/user_admin_api.rst#reset-password
This requires an access token from a server admin account. If you didn't make your account a server admin when you created it, you can use the `/usr/local/bin/matrix-make-user-admin` script as described in [registering-users.md](registering-users.md).
## Option 2 (if you are using the default matrix-postgres container):
You can reset a user's password via the Ansible playbook (make sure to edit the `<your-username>` and `<your-password>` part below):
## Option 3 (if you are using an external Postgres server):
You can manually generate the password hash by using the command-line after **SSH**-ing to your server (requires that [all services have been started](installing.md#starting-the-services)):