kubernetes in container dns resolution problems with flannel vxlan backend

You can change net backend type vxlan to host-gw if you are using a ovh or kimsufi server and you don't sure server's vxlan support and docker containers outgoing connections fails because name resolution. I am using rancher and kubernetes and i changed my net-conf.json config from canal-config configmap. 

Change

net-conf.json { "Network": "10.42.0.0/16", "Backend": { "Type": "vxlan" } }

to 

net-conf.json { "Network": "10.42.0.0/16", "Backend": { "Type": "host-gw" } }