Hi, I have a virtualized infrastructure based on KVM/QEMU with CentOS 5.5 x86_64 hosts and guests, using bridge networking. I want to set up IP based VirtualHosts in Apache (because they will use SSL) and I have ordered an IP block. Now, in order to have the IPs available on some guests, I'm wondering whether I should: 1 - add additional virtual interfaces or 2 - set up IP aliases (eth0:1, etc.) in the guests I imagine that (1) would be faster and more efficient (but that's a guts feeling), and it feels cleaner. But with (2), I just need to restart the network in order to add new IPs (there won't be that many: like around 10 in the next few months), insteead of restarting the whole guest. Are there any best practices for adding IP-addresses to virtualized guests? Thanks in advance for your insights! Mathieu