The REM node opens the following listening ports. Please refer to the tables below to configure your firewall rules appropriately.
Static ports
This table describes listening ports that will normally always be open at the specified port number.
| Purpose | Port Number | Transport Layer Protocol | Interface | Notes |
|---|---|---|---|---|
Local TCP port for receiving audit syslogs from Rhino and logging to dedicated audit files |
514 |
TCP |
global |
rsyslogd listens on both the IPv4 and IPv6 global addresses |
NTP - local administration |
123 |
UDP |
localhost |
ntpd listens on both the IPv4 and IPv6 localhost addresses |
Receive and forward SNMP trap messages |
162 |
UDP |
localhost |
|
SNMP Multiplexing protocol |
199 |
TCP |
localhost |
|
Server port for Tomcat |
8005 |
TCP |
localhost |
|
Allow querying of system-level statistics using SNMP |
161 |
UDP |
management |
|
NTP - time synchronisation with external server(s) |
123 |
UDP |
management |
This port is only open to this node’s registered NTP server(s) |
Port for serving version information to SIMPL VM over HTTP |
3000 |
TCP |
management |
|
Rhino Element Manager (REM) |
8443 |
TCP |
management |
|
SSH connections |
22 |
TCP |
management |
Port ranges
This table describes listening ports which may be open at any port number within a range. Unless otherwise specified, a single port in a range will be open.
These port numbers are often in the ephemeral port range of 32768 to 60999.
| Purpose | Minimum Port Number | Maximum Port Number | Transport Layer Protocol | Interface | Notes |
|---|---|---|---|---|---|
Outbound SNMP traps |
32768 |
60999 |
udp |
global |
