I recently noticed that rocket chat node process opens periodically some random high UDP port for listening. Why It’s doing such things? It’s normal behavior?
for example is something like this:
tcp 0.0.0.0:3000 0.0.0.0:* 1431/node
udp 0.0.0.0:48618 0.0.0.0:* 1431/node
and this port will close after short period of time, and some time later node again open udp socket with random port.
- Version of Rocket.Chat Server: 4.6.1
- Operating System: Ubuntu 18.04
- Deployment Method: tar
- Number of Running Instances: 1
- DB Replicaset Oplog: 1
- NodeJS Version: 14.18.3
- MongoDB Version: 4.2.19
- Proxy: haproxy
- Firewalls involved: no