Hi, I configured as first Service in cluster a DNS....it works fine and from cluster console I can move service from serverA to ServerB without problem. According with documentation I've configured Apache...exactly ! The problem is that with 2 services in cluster I'm not able to switch they from server to another server anymore...Console say thats this is an error...but there isn't any error in /var/log/messages..only a warning #70 NOTICE that if I disabled a service and then restart to other server, services run correctly...(both services), but if I want to switch on the fly...doesn't work!...It seems that Dns hung up ! any help is greatly appreciated! Alex below...tail -40 /var/log/messages trying to start DNS from serverB to ServerA while apache is running on serverA: Mar 10 10:24:57 nodo2 clurgmgrd: [2569]: <info> Executing /etc/init.d/named status Mar 10 10:25:14 nodo2 clurgmgrd[2569]: <notice> Stopping service dns Mar 10 10:25:14 nodo2 clurgmgrd: [2569]: <info> Executing /etc/init.d/named stop Mar 10 10:25:14 nodo2 named[13926]: shutting down: flushing changes Mar 10 10:25:14 nodo2 named: succeeded Mar 10 10:25:14 nodo2 named[13926]: stopping command channel on 127.0.0.1#953 Mar 10 10:25:14 nodo2 named[13926]: no longer listening on 127.0.0.1#53 Mar 10 10:25:14 nodo2 named[13926]: no longer listening on 10.23.5.253#53 Mar 10 10:25:14 nodo2 named[13926]: no longer listening on 10.23.5.240#53 Mar 10 10:25:14 nodo2 named[13926]: no longer listening on 192.168.254.3#53 Mar 10 10:25:14 nodo2 named[13926]: exiting Mar 10 10:25:14 nodo2 clurgmgrd: [2569]: <info> Removing IPv4 address 10.23.5.240 from eth0 Mar 10 10:25:24 nodo2 clurgmgrd: [2569]: <info> unmounting san:/SAN/DNS (/var/named) Mar 10 10:25:24 nodo2 clurgmgrd[2569]: <notice> Service dns is stopped Mar 10 10:25:24 nodo2 clurgmgrd[2569]: <warning> #70: Attempting to restart service dns locally. Mar 10 10:25:24 nodo2 clurgmgrd[2569]: <notice> Starting stopped service dns Mar 10 10:25:24 nodo2 clurgmgrd: [2569]: <info> Adding IPv4 address 10.23.5.240 to eth0 Mar 10 10:25:25 nodo2 clurgmgrd: [2569]: <info> Executing /etc/init.d/named start Mar 10 10:25:25 nodo2 named: Avvio named succeeded Mar 10 10:25:25 nodo2 named[14145]: starting BIND 9.2.4 -u named -t /var/named/chroot Mar 10 10:25:25 nodo2 named[14145]: using 1 CPU Mar 10 10:25:25 nodo2 named[14145]: loading configuration from '/etc/named.conf' Mar 10 10:25:25 nodo2 named[14145]: listening on IPv4 interface lo, 127.0.0.1#53 Mar 10 10:25:25 nodo2 named[14145]: listening on IPv4 interface eth0, 10.23.5.253#53 Mar 10 10:25:25 nodo2 named[14145]: listening on IPv4 interface eth0, 10.23.5.240#53 Mar 10 10:25:25 nodo2 named[14145]: listening on IPv4 interface eth1, 192.168.254.3#53 Mar 10 10:25:25 nodo2 clurgmgrd[2569]: <notice> Service dns started Mar 10 10:25:25 nodo2 named[14145]: command channel listening on 127.0.0.1#953 Mar 10 10:25:25 nodo2 named[14145]: zone 5.23.10.in-addr.arpa/IN: loaded serial 199609206 Mar 10 10:25:25 nodo2 named[14145]: zone 0.0.127.in-addr.arpa/IN: loaded serial 199609206 Mar 10 10:25:25 nodo2 named[14145]: zone linux.testing/IN: loaded serial 199609206 Mar 10 10:25:25 nodo2 named[14145]: running Mar 10 10:25:56 nodo2 clurgmgrd: [2569]: <info> Executing /etc/init.d/named status Mar 10 10:26:01 nodo2 crond(pam_unix)[14196]: session opened for user root by (uid=0) Mar 10 10:26:03 nodo2 crond(pam_unix)[14196]: session closed for user root Mar 10 10:26:26 nodo2 clurgmgrd: [2569]: <info> Executing /etc/init.d/named status Mar 10 10:26:57 nodo2 clurgmgrd: [2569]: <info> Executing /etc/init.d/named status Mar 10 10:27:58 nodo2 last message repeated 2 times Mar 10 10:28:01 nodo2 crond(pam_unix)[14526]: session opened for user root by (uid=0) Mar 10 10:28:03 nodo2 crond(pam_unix)[14526]: session closed for user root -- Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster