## System Events

NATS servers leverage [Account](nats_server/jwt_auth.md) support and generate events such as:

- account connect/disconnect
- authentication errors
- server shutdown
- server stat summary

In addition the server supports a limitted number of requests that can be used to query for account connections, server stat summaries, and pinging servers in the cluster.

These events are only accepted and visible to _system account_ users. 

### The System Events Tutorial
You can learn more about System Accounts in the [Tutorial](sys_accounts.md).