C. SLM Communication

This section uses the example system configuration shown below to explain the port numbers used in SLM communication and the direction in which data passes through a firewall (the direction in which a connection is established).

Figure C‒1: Example system configuration

1. The person who monitors services uses a browser to connect to SLM - Manager.

2. SLM - UR is deployed to monitor the Web system services.

• Communication between SLM - Manager and the browser

  Communication between SLM - Manager and the browser is as follows:

  Port number of the browser	Pass-through direction	Communication protocol	Port number of SLM - Manager (HTTP server)
  (ANY)/tcp		HTTP	20900/tcp (httpsd)

• Communication between SLM - Manager and SLM - UR

  Communication between SLM - Manager and SLM - UR is as follows:

  Port number of SLM - Manager	Pass-through direction	Communication protocol	Port number of SLM - UR
  (ANY)/tcp		RMI	20910/tcp (jslmuRMI)
  (ANY)/tcp		RMI	(ANY)/tcp
  20904/tcp (jslmmRMI)		RMI	(ANY)/tcp
  (ANY)/tcp		RMI	(ANY)/tcp

In addition to these communications, the following communications are also available:

• Communications using ports in the range from 20901/tcp to 20904/tcp on the local host on which SLM - Manager is running
• Communications using port 20910/tcp on the local host on which SLM - UR is running

• Collection of HTTP packets by SLM - UR

  Set up the firewall so that SLM - UR can obtain HTTP packets that were copied by the port mirroring function.

  To specify a program to allow communication, specify settings on the host where SLM - UR was set up so that communication of the following program is allowed:

  • SLM-UR-installation-folder\ur\system\sdp\bin\sdppcap.exe

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