NATS Server

A high-performance server for NATS.io, the cloud and edge native messaging system.

Configuration

  • Config file: /etc/nats-server.conf
  • System service: nats-server
  • Default port: 4222
  • Monitoring endpoint: http://localhost:8222 (secured via SSH tunnel)

Credentials

Stored in /etc/nats-server.conf

Accessing NATS

Connection using nats CLI tool (client):

nats sub hello -s nats://USER:PASSWORD@SERVER_IP:4222
nats pub hello "world" -s nats://USER:PASSWORD@SERVER_IP:4222

Monitoring (via SSH tunnel)

For security, the monitoring endpoint is only bound to localhost.

To access it remotely, set up an SSH tunnel:

ssh -L 8222:localhost:8222 root@SERVER_IP

Then open in your browser: http://localhost:8222

Service Management

systemctl status nats-server
systemctl restart nats-server

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Application Details