# Op-mon to use one IP and daemon within a cluster

1\) make sure, slave nodes -> master node can connect over port 2080

2\) on master node, add to /etc/xroad/conf.d/local.ini

```
[op-monitor]
host = <master-internal-IP>
```

<div id="bkmrk-3%29-on-master-node"><div>3) on master node</div></div><div id="bkmrk-service-xroad-proxy-">`service xroad-proxy restart`</div><div id="bkmrk-4%29-on-slave-nodes">4) on slave nodes</div><div id="bkmrk-service-xroad-proxy--1">`service xroad-proxy restart`</div><div id="bkmrk-service-xroad-opmon-"><div><div>`service xroad-opmon stop`</div><div>`service xroad-opmon mask`</div></div></div>