> What does the dmesg output look like? It looks the following CMAN: forming a new cluster CMAN: quorum regained, resuming activity CMAN: sendmsg failed: -13 CMAN: No functional network interfaces, leaving cluster CMAN: sendmsg failed: -13 CMAN: we are leaving the cluster. CMAN: Waiting to join or form a Linux-cluster CMAN: sendmsg failed: -13 CMAN: sendmsg failed: -13 CMAN: sendmsg failed: -13 CMAN: sendmsg failed: -13 CMAN: sendmsg failed: -13 CMAN: forming a new cluster CMAN: quorum regained, resuming activity CMAN: sendmsg failed: -13 CMAN: No functional network interfaces, leaving cluster CMAN: sendmsg failed: -13 CMAN: we are leaving the cluster. CMAN: Waiting to join or form a Linux-cluster CMAN: sendmsg failed: -13 Can't interpret the "No functional network interface". No firewall is running on the system. /etc/hosts.{allow,deny} makes no restriction. The /etc/hosts file is set up correctly. Pedro -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster