Perform pre-deployment configuration¶ Configure networking IP considerations Open ports to incoming traffic Cluster and service networking options Calico networking Multus CNI installation and enablement Enable ESP traffic Avoid firewall conflicts DNS entry in hosts file Preconfigure an SLES installation Verify the timeout settings Configure time synchronization Configure a load balancer Configure IPVS Use an External Certificate Authority Customize named volumes Configure kernel parameters kernel.<subtree> net.bridge.bridge-nf-<subtree> net.fan.<subtree> net.ipv4.<subtree> net.netfilter.nf_conntrack_<subtree> net.nf_conntrack_<subtree> vm.overcommit_<subtree> vm.panic_<subtree> Set up kernel default protections