This monitor tests if a Citrix® Server or XenApp Server® is providing the Independent Computing Architecture (ICA) protocol on TCP 1494. The monitor opens a TCP socket and tests the greeting banner returns with ICA; otherwise, the service is unavailable.

Monitor facts

Class Name


Configuration and use

Table 1. Optional monitor-specific parameter for the CitrixMonitor
Parameter Description Default


TCP port where the ICA protocol


This monitor implements the Common Configuration Parameters.

If you use session reliability to configure the MetaFrame Presentation Server Client, the TCP port is 2598 instead of 1494. Find more information on CTX104147. It is not verified if the monitor works in this case.


The following example configures Horizon to monitor the ICA protocol on TCP 1494 with two retries, each on a five-second delay.

Note that you must include the monitor section for each service in your definition.

<service name="Citrix-TCP-ICA" interval="300000" user-defined="false" status="on">
    <parameter key="retry" value="2" />
    <parameter key="timeout" value="5000" />

<monitor service="Citrix-TCP-ICA" class-name="org.opennms.netmgt.poller.monitors.CitrixMonitor" />