IBM APM 8.1.4 Synthetic Agent (SN) port usage

Answer: When the APM Synthetic Agent (SN) v8.1.4 is started on Linux OS environment with command like :

cd /opt/ibm/apm/agent/bin/

./synthetic_playback-agent.sh start

then you can check, which ports are opened, and which process opened each port, using command like :

netstat -tulpn

For example, if Xvnc is already started, it's opening port 6001.
and here are the main ports opened after SN agent was started :
Port Number    Process Name
7756                  ksnagent
6002                  Xvfb
6014                  ksnagent
4444                  java

the above port numbers will vary, depending on the number of different APM agents co-resident and started on same system.

4444 is used by the SN agent to connect to the internal Selenium Server; only this port number is documented here below:
https://www.ibm.com/support/knowledgecenter/en/SSHLNR_8.1.4/com.ibm.pm.doc/install/overview_default_ports.htm

cd /opt/ibm/apm/agent/bin/

./synthetic_playback-agent.sh status

command will give you a general status of the synthetic agent, like below:

Agent status:
Agent is running. Process ID is <PID>
Server connection status: Connected
For more information, see the following file: /opt/ibm/apm/agent/logs/sn_ServerConnectionStatus.txt

cat /opt/ibm/apm/agent/logs/sn_ServerConnectionStatus.txt

<date>  Agent  ASF server connection status is CONNECTED           Server URL (http://<apm_server>:80/ccm/asf/request)

 <date> Agent  CCS server connection status is DISCONNECTED-NORMAL Server URL (http://<apm_server>:80/CentralConfigurationServer/)
<date>  Agent  EIF server connection status is DISCONNECTED-NORMAL Server URL (http://<apm_server>:80/ccm/asf/request)
<date>  Agent REST server connection status is INACTIVE