Redhat – How to configure the tiger VNC in RHEL 6 to enable remote login after reboot

probably not the cleanest solution, but this works (with the definitions defined at the top of the script)

virsh destroy $name-$ip_short
virsh undefine $name-$ip_short
rm -fr /kvm/disks/$name-$ip_short.img

virt-install \
--name=$name-$ip_short \
--arch=x86_64 \
--ram=$memory \
--os-type=linux \
--os-variant=virtio26 \
--hvm \
--connect=qemu:///system \
--network bridge:br0 \
--vcpus=$cpus \
--accelerate \
--autostart \
--disk path=$disk_directory/$name-$ip_short.img,size=$disk_size \
--location http://$domain/$location_path \
--vnc \
--noautoconsole \
-x "ks=http://$domain/$ks_path ksdevice=eth0 ip=$ip_long netmask=255.255.255.0 gateway=$gateway dns=$dns"


finished="0";

while [ "$finished" = "0" ]; do
        sleep 5;
        if [ `virsh list --all | grep "running" | grep "$name-$ip_short" | wc -c` -eq 0 ];
        then
                #echo "setup finished, start vm $name-$ip_short"
                finished=1;
                virsh start $name-$ip_short
        fi
done

First iptables should be enabled on startup with chkconfig on But I guess this is already the case since you get an empty table.

A reason for iptables not loading during bootime could be, that you have rules in your configuration using hostnames, if so replace them by IPs and try again. If you absolutely need hostnames in you iptables configuration be sure to enable (and commit) DNS query from your host first, but I am not sure if this will work in any situation.