Update docs to include basic iptables rules to allow mod_cluster multicast traffic ---------------------------------------------------------------------------------- Key: MODCLUSTER-154 URL: https://jira.jboss.org/jira/browse/MODCLUSTER-154 Project: mod_cluster Issue Type: Task Affects Versions: 1.1.0.CR1, 1.0.3.GA Reporter: Samuel Mendenhall Assignee: Jean-Frederic Clere Priority: Minor Fix For: 1.0.4.GA, 1.1.0.CR3 By default RHEL/Fedora iptables rules blocks multicast traffic. At least on a single JBoss node with Apache and JBoss on the same machine the following iptables rule allows multicast traffic. If this rule isn't in place http://localhost/mod_cluster-manager will not show any nodes as multicast is blocked and Apache<->JBoss won't communicate /sbin/iptables -I INPUT 5 -p udp -d 224.0.1.0/24 -j ACCEPT /etc/init.d/iptables save It may also be helpful to note the iptables rules when running in a cluster also as seen here: http://www.redhat.com/docs/en-US/JBoss_Enterprise_Application_Platform/5.... -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira