[JIRA] (JENKINS-6964) Selenium plugin can't start RCs on slaves.

[adam.dem...@gmail.com (JIRA)]

Adam Demuri edited a comment on JENKINS-6964 Selenium plugin can't start RCs on slaves. As Jeff explains here (https://groups.google.com/forum/#!topic/jenkinsci-users/JwdvUSIe1MI), (one cause of) the issue seems to be Java's implementation of ping. I was seeing this problem with Jenkins running on Ubuntu and a slave on Windows. What solved the problem was installing the 'Simple TCP/IP Services' on Windows and 'xinetd' (and turning on echo) on Linux. This contains the 'ping' utility which runs on port 7. Apparently Java's implementation of ping uses this port/service on Linux. I'm not sure if echo functionality is needed on both machines or just one.

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