Jmeter小白，想使用JMeterPlugins 监控远程linux的系统资源，如Memory，CPU等，本地插件已经配置完成，远程linux也已成功安装startAgent，并也成功启动，客户端和服务器之间也可以相互ping通，但是添加到本机进行监控执行jmeter时，报错如下，求高手指点：
2015/11/12 10:52:17 INFO - jmeter.engine.StandardJMeterEngine: Running the test!
2015/11/12 10:52:17 INFO - jmeter.samplers.SampleEvent: List of sample_variables: []
2015/11/12 10:52:17 INFO - kg.apc.jmeter.perfmon.PerfMonCollector: PerfMon metrics will be stored in C:UsersADMINI~1AppDataLocalTempperfmon_5552909499068635145.jtl
2015/11/12 10:52:38 INFO - kg.apc.jmeter.perfmon.PerfMonCollector: Can't connect TCP transport for host: /192.168.3.12:4444 java.net.ConnectException: Connection timed out: connect
