Setup bridge configuration with KVM/Qemu

qemu-bridge.conf.sh

# When encoutering this issue :
#
# Error starting domain: internal error: /usr/lib/qemu/qemu-bridge-helper --br=br0 --fd=25: failed to 
# communicate with bridge helper: Transport endpoint is not connected stderr=failed to parse default 
# acl file/etc/qemu/bridge.conf
#
# proceed as follows :
sudo mkdir /etc/qemu
sudo touch /etc/qemu/bridge.conf
sudo chmod u+r /etc/qemu/bridge.conf
sudo echo "allow virbr0" > /etc/qemu/bridge.conf
sudo chmod u+s $(locate -r /usr/.*/qemu-bridge-helper$)