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# Network Map

You can visualize the network topology of a system monitored by Sematext. The Sematext Agent can discover hosts and collect information about communication between them, such as the amount of received/transmitted data on each port. In order to build the Network Map the Sematext Monitoring Agent needs to be started on each host in the system. This can be done by setting netmon.enabled property to true in /opt/spm/properties/st-agent.yml. This property is disabled by default.

The following properties can be changed:

• netmon.interfaces(default value: eth0,eth1) - the list of network interfaces that will be used for packets capture.

Sematext Agent needs to be restarted after any st-agent.ymlchanges:

sudo service sematext-agent restart