Use the following table to set up network access:
Description | Protocol | Source | Destination | Port |
|---|---|---|---|---|
DNS queries | TCP/UDP | Comm Broker | Internal DNS servers | 53 |
NTP | UDP | Comm Broker | Trusted NTP servers | 123 |
CLI using SSH | TCP | Admin workstation | Comm Broker | 22 |
Receive data | TCP/UDP | SIEM, syslog server, data sources | Comm Broker | 1026 (JSON), 1027 (syslog) |
Receivers in Helix | TCP | Comm Broker | Receiver IPs | 443 |
Hardening, maintenance, and monitoring of the system on which the Comm Broker is installed, including key maintenance, should be done in accordance with your corporate standards.