<div dir="ltr">I believe enabling auth is sufficient, but I'm not 100% sure. I've sent an email to JGroups mailing list to confirm and I'll let you know.</div><div class="gmail_extra"><br><div class="gmail_quote">On 11 November 2015 at 23:05, Matthew Casperson <span dir="ltr"><<a href="mailto:matthew.casperson@autogeneral.com.au" target="_blank">matthew.casperson@autogeneral.com.au</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>The docs state that "By default there's nothing to prevent unauthorized nodes from joining the cluster and sending potentially malicious messages to the cluster." (<a href="http://keycloak.github.io/docs/userguide/keycloak-server/html/clustering.html" target="_blank">http://keycloak.github.io/docs/userguide/keycloak-server/html/clustering.html</a>)<br><br></div>Is this still the case if the jgroups stack in Wildfly has implemented the AUTH protocol? For example, the Openshift Wildfly config looks something like this:<br><br><pre><code><span><code><span> </span><span></span></code><</span><span>stack name</span><span>=</span><span>"tcp"</span><span>></span><span>
</span><span><</span><span>transport type</span><span>=</span><span>"TCP"</span><span> socket</span><span>-</span><span>binding</span><span>=</span><span>"jgroups-tcp"</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"external_addr"</span><span>></span><span>$</span><span>{</span><span>env</span><span>.</span><span>OPENSHIFT_GEAR_DNS</span><span>}</</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"external_port"</span><span>></span><span>$</span><span>{</span><span>env</span><span>.</span><span>OPENSHIFT_WILDFLY_CLUSTER_PROXY_PORT</span><span>}</</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"bind_port"</span><span>></span><span>$</span><span>{</span><span>env</span><span>.</span><span>OPENSHIFT_WILDFLY_CLUSTER_PORT</span><span>}</</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"bind_addr"</span><span>></span><span>$</span><span>{</span><span>env</span><span>.</span><span>OPENSHIFT_WILDFLY_IP</span><span>}</</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"defer_client_bind_addr"</span><span>></span><span>true</span><span></</span><span>property</span><span>></span><span>
</span><span></</span><span>transport</span><span>></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"TCPPING"</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"timeout"</span><span>></span><span>30000</span><span></</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"initial_hosts"</span><span>></span><span>$</span><span>{</span><span>env</span><span>.</span><span>OPENSHIFT_WILDFLY_CLUSTER</span><span>}</</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"port_range"</span><span>></span><span>0</span><span></</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"num_initial_members"</span><span>></span><span>1</span><span></</span><span>property</span><span>></span><span>
</span><span></</span><span>protocol</span><span>></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"MERGE2"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"FD"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"VERIFY_SUSPECT"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"BARRIER"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"pbcast.NAKACK"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"UNICAST2"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"pbcast.STABLE"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"AUTH"</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"auth_class"</span><span>></span><span>org</span><span>.</span><span>jgroups</span><span>.</span><span>auth</span><span>.</span><span>MD5Token</span><span></</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"token_hash"</span><span>></span><span>SHA</span><span></</span><span>property</span><span>></span><span>
</span><span><</span><span>property name</span><span>=</span><span>"auth_value"</span><span>></span><span>$</span><span>{</span><span>env</span><span>.</span><span>OPENSHIFT_SECRET_TOKEN</span><span>}</</span><span>property</span><span>></span><span>
</span><span></</span><span>protocol</span><span>></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"pbcast.GMS"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"UFC"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"MFC"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"FRAG2"</span><span>/></span><span>
</span><span><!--</span><span>protocol type</span><span>=</span><span>"pbcast.STATE_TRANSFER"</span><span>/></span><span>
</span><span><</span><span>protocol type</span><span>=</span><span>"pbcast.FLUSH"</span><span>/--></span><span>
</span><span></</span><span>stack</span><span>></span></code></pre><br clear="all"><div><div><div><div><br>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><b><font face="tahoma, sans-serif">Matthew Casperson</font></b></div><div><b><font face="tahoma, sans-serif">Senior Front End Developer</font></b></div><div><font face="tahoma, sans-serif">Technology, Space & Distribution</font></div><div><font face="tahoma, sans-serif">Auto & General Holdings Pty Ltd</font></div><div><font face="tahoma, sans-serif">P: 07) 3377 </font><span style="font-family:tahoma,sans-serif;font-size:small">8751</span><font face="tahoma, sans-serif"> (Direct: 3377 </font><span style="font-family:tahoma,sans-serif;font-size:small">8751</span><font face="tahoma, sans-serif">)</font></div><div><font face="tahoma, sans-serif">F: 07) 3377 8833<br><br></font></div><img style="border:0px none;max-width:100%;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;line-height:18px"><br></div></div></div></div>
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