Hi, I have standard PC, built from commodity hardware as a firewall and mail relay. The think is, this firewall is getting very important within this particular organization and I would like to make it a cluster. If all was read only, I would go for linux-ha, but I also have the mail relay (Qmail) to worry about. So, I guess my question is: is there a clustering solution that does not involve shared storage but instead has some kind of mirroring the cluster nodes? Also, I am looking for a Open Source solution because budget for this is very low. I think something like LifeKeeper would be great, but I wanted it to be free($$) also. TIA Regards, Nuno - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html